Guide For Tomatoes

Disease
Identification
Guide For
Tomatoes

TA B L E O F C O N T E N T S
Introduction ...................................................................... 1
Seasonal Calendar .......................................................... 3
Treatments ........................................................................ 7
Actigard ® ....................................................................... 8
Bravo Weather Stik ® ................................................... 10
FarMore ® Technology Platform ................................ 12
Quadris ® ...................................................................... 14
Quadris Opti ® .............................................................. 16
Revus Top TM ................................................................. 18
Ridomil Gold ® Bravo ® SC ............................................ 20
Ridomil Gold ® GR ........................................................ 22
Ridomil Gold ® MZ WG ............................................... 24
Ridomil Gold ® SL ....................................................... 26
Disease Identification .................................................... 29
Anthracnose ............................................................... 30
Bacterial Speck ........................................................... 32
Bacterial Spot ............................................................. 34
Black Mold .................................................................. 36
Buckeye Rot ................................................................ 38
Damping-off ............................................................... 40
Early Blight ................................................................. 42
Gray Leaf Spot ............................................................ 44
Gray Mold ................................................................... 46
Late Blight .................................................................. 48
Powdery Mildew ........................................................ 50
Septoria Leaf Spot ...................................................... 52
Southern Blight .......................................................... 54
Target Spot ................................................................. 56
White Mold ................................................................. 58
Syngenta Seeds/ROGERS ® ............................................. 61
Varieties ...................................................................... 62
Resources / Photo Credits .............................................. 69
T O M AT O E S

T O M AT O E S
Syngenta Crop Protection, Syngenta Seed Care and
Syngenta Seeds/ROGERS Brand help their customers
deliver better food for a better world through
outstanding crop solutions.
Our solutions begin with crop genetics. The breeders
at Syngenta Seeds focus on consumer needs in their
pursuit of superior tomato varieties. Sound genetics
provide a foundation for a healthy crop with disease
prevention in mind.
Meanwhile, Syngenta offers a broad product
portfolio for disease, insect and weed management
in nearly every crop. This portfolio comes from a
commitment to research and development. Syngenta
helps growers more efficiently produce high quality
crops by bringing new products to the marketplace
and by developing new uses for existing chemistries.
Nearly 4,000, or around 20 percent, of Syngenta
employees are engaged in research and development.
Anthracnose, early and late blight, and powdery
mildew are only a few of the diseases that affect tomato
crops each year. Syngenta has developed specific solutions
for both preventive and curative disease management.
Moreover, Syngenta ceaselessly works to improve
resistance management strategies to help ensure the
continuation of outstanding crop protection solutions.
The information in this disease guide will help
growers produce top quality tomatoes through
effective disease management and proper variety
selections. By recognizing a pathogen, knowing when
to treat it and what to treat it with, growers commit
themselves to the highest quality in crop production.
I N T R O D U C T I O N
1

S E A S O N A L C A L E N D A R
Seasonal
Calendar

S E A S O N A L C A L E N D A R 4
DISEASES
Alternaria Fruit Rot
(Black Mold)
Anthracnose
Seeds and Seedlings,
Pre-emergence
Emergence to
Five Leaves
Bacterial Speck and
Bacterial Spot
Botrytis Gray Mold
Buckeye Rot
Damping-off
FarMore Technology
(Pythium)
Ridomil Gold GR, Ridomil Gold SL
Early Blight
Fusarium and
Rhizoctonia Seed Rot FarMore Technology
and Seedling Blight
Pre-bloom
Growth
Early Fruit Set Green Fruit Early Ripening
Ripe Fruit
Bravo Weather Stik, Quadris, Quadris Opti,
Ridomil Gold Bravo SC
Bravo Weather Stik, Quadris,
Quadris Opti, Revus Top, Ridomil Gold Bravo SC
Actigard
Bravo Weather Stik, Ridomil Gold Bravo SC
Quadris, Quadris Opti
Bravo Weather Stik, Quadris, Quadris Opti, Revus Top, Ridomil Gold Bravo SC
T O M AT O E S

T O M AT O E S
DISEASES
Gray Leaf Mold
Gray Leaf Spot
Late Blight
Late Blight Fruit Rot
Powdery Mildew
Rhizoctonia Fruit Rot
Root and Fruit Rot
(Pythium and
Phytophthora)
Septoria Leaf Spot
Target Spot
Seeds and Seedlings,
Pre-emergence
Emergence to
Five Leaves
Pre-bloom
Growth
Early Fruit Set Green Fruit Early Ripening
Ripe Fruit
Bravo Weather Stik, Ridomil Gold Bravo SC
Bravo Weather Stik, Ridomil Gold Bravo SC
Bravo Weather Stik, Quadris, Quadris Opti, Revus Top, Ridomil Gold MZ WG
Bravo Weather Stik
Quadris, Quadris Opti
Bravo Weather
Stik, Ridomil
Gold Bravo SC
Ridomil Gold SL
Ridomil Gold Bravo SC, Ridomil Gold GR
Bravo Weather Stik, Quadris, Quadris Opti, Revus Top, Ridomil Gold Bravo SC
Bravo Weather Stik, Quadris, Quadris Opti, Revus Top
S E A S O N A L C A L E N D A R
5

T R E AT M E N T S
Treatments

Protect Your Tomatoes
with Actigard
Actigard plant activator provides effective protection
for tomatoes against bacterial diseases. Applied
preventively, Actigard protects the plant against
bacterial spot and bacterial speck. Actigard induces
host plant resistance with a unique mode of action
that mimics the natural systemic activated resistance
response found in many plants. For best results, use
Actigard as part of tomato disease management programs.
A C T I G A R D 8
T O M AT O E S

Actigard Recommendations
for Tomatoes*
Target Diseases Use Rate Remarks
T O M AT O E S
Bacterial Speck
(Pseudomonas
syringae pv.
tomato)
Bacterial Spot
(Xanthomonas
campestris pv.
vesicatoria)
Ground Application:
0.33 oz./A with 30 to 50
GPA, 0 to 2 weeks after
transplanting
0.5 oz./A with 60 to 70
GPA, 3 to 4 weeks after
transplanting
0.75 oz./A with 70 to 100
GPA, 5 to 8 weeks after
transplanting
Air Application:
0.33 oz./A with a minimum
of 10 GPA, 0 to 2 weeks
after transplanting
0.5 oz./A with a minimum
of 10 GPA, 3 to 4 weeks
after transplanting
0.75 oz./A with a minimum
of 10 GPA, 5 to 8 weeks
after transplanting
Mixing Instructions:
For best results, use ground applications. Thoroughly clean spray equipment before using Actigard.
Vigorous agitation is necessary for proper dispersal. Maintain maximum agitation throughout the
spraying operation.
Actigard Alone:
Add 1 /2 of the required water to the mix tank. With the agitator running, add the Actigard to the
tank. Continue agitation while adding the remainder of the water. Begin application of the solution
after the Actigard has completely dispersed into the mix water. Maintain agitation until all of the
mixture has been applied.
Actigard + Tank Mixtures:
Growers should consult their dealer or Syngenta sales representative for information concerning
compatibility of other tank-mix partners.
Application Directions:
Make up to eight weekly, sequential applications. Begin the season with low water volumes.
As the plant canopy increases, the Actigard rate should increase to ensure activity.
*Please consult the Actigard product label for complete use directions.
A C T I G A R D
9

Protect Your Tomatoes
with Bravo Weather Stik
Bravo Weather Stik fungicide is a leading choice
among tomato growers because it protects foliage
against early blight, late blight, gray leaf spot, gray
leaf mold, Septoria leaf spot and target spot. Bravo
Weather Stik also protects fruit against anthracnose,
black mold, gray mold and fruit rot. The patented
Weather Stik ® formulation sticks and stays on the
plant longer than any other fungicide available.
In wet conditions when disease pressure is highest,
Bravo Weather Stik is at its best.
B R A V O W E A T H E R S T I K 10
T O M AT O E S

Bravo Weather Stik Recommendations
for Tomatoes*
Target Diseases Use Rate Remarks
T O M AT O E S
Foliage:
Early Blight
(Alternaria solani)
Gray Leaf Mold
(Fulvia fulva;
Cladosporium)
Gray Leaf Spot
(Stemphylium
botryosum)
Fruit:
Alternaria Fruit Rot
(Black Mold)
(Alternaria alternata)
Anthracnose
(Colletotrichum spp.)
Botrytis Gray Mold
(Botrytis cinerea)
Late Blight
(Phytophthora
infestans)
Septoria Leaf Spot
(Septoria lycopersici)
Target Spot
(Corynespora
cassiicola)
Late Blight Fruit Rot
(Phytophthora infestans)
Rhizoctonia Fruit Rot
(Rhizoctonia solani)
(Apply every seven to
10 days)
1 3 /8 to 2.0 pts./A
(Apply every seven to
14 days at beginning
of fruit set)
2.0 to 2 ¾ pts./A
Application Directions:
Apply in sufficient water to obtain adequate coverage. Begin applications
when dew or rain occur and disease threatens. Apply on a seven- to 10-day
interval for foliage diseases. For fruit diseases, begin at fruit set and apply
on a seven- to 14-day interval. Use the highest rate and shortest interval
specified when disease conditions are severe. The minimum re-treatment
interval is seven days.
Apply by ground, air or chemigation.
*Please consult the Bravo Weather Stik product label for complete
use directions.
B R A V O W E A T H E R S T I K
11

F A R M O R E T E C H N O L O G Y P L A T F O R M 12
A Novel Approach for
Early Season Tomato Protection
The FarMore Technology Platform is the first comprehensive
seed delivered system that helps maximize vegetable
production by enhancing both performance and value.
FarMore Technology offers an all-in-one plant health solution
for maximum return on investment potential and grower
convenience. FarMore Technology includes a seed companyor
seed technology provider-applied combination of
separately registered seed protection products and protocols.
This seed protection system provides small-seeded vegetable
growers with consistent performance and improved seed
technology to enhance seedling emergence, plant stand
establishment, early season vigor and plant health, as well
as protect yield potential.
T O M AT O E S

The combination of certain environmental conditions
and pathogens on the seed or in the soil may result in
damping-off, decay, seedling blight and eventual death
of the seed or seedling. The broad-spectrum disease
protection of FarMore Technology protects the seed
by targeting seed-borne and soil-borne fungi that cause
these early season infections. FarMore Technology
provides broad-spectrum, systemic and post-emergence
disease protection against Fusarium, Pythium and
Rhizoctonia for tomatoes. The combination of active
ingredients and protocols are active on all four major
classes of pathogenic fungi.
T O M AT O E S
Seed- and Soil-borne Diseases*
General Damping-off
and Seedling Blight
Alternaria
Fusarium
Pythium
Rhizoctonia
Seed-borne
Sclerotinia
*Please contact a technology provider for more information.
F A R M O R E T E C H N O L O G Y P L A T F O R M
13

Q U A D R I S 14
Quadris Means Quality in Tomatoes
Quadris fungicide has become the gold standard for
disease control in tomato crops. The systemic properties
of Quadris allow the active ingredient, azoxystrobin, to
move within the plant’s xylem. This systemic activity is
known as the Quadris X-Factor TM and provides an even
distribution of Quadris in the foliage and into newly
formed leaves for better disease control. This also
provides excellent rainfastness. When applied as a
foliar spray, the slow, steady uptake of Quadris keeps
a sufficient amount of fungicide on leaf surfaces to
protect the plant from infection by preventing
spore germination.
T O M AT O E S

Quadris Recommendations
for Tomatoes*
Target Diseases Use Rate Remarks
T O M AT O E S
Anthracnose
(Colletotrichum coccodes)
Black Mold
(Alternaria alternata)
Buckeye Rot
(Phytophthora spp.)
Early Blight
(Alternaria solani)
Powdery Mildew
(Leveillula taurica)
Septoria Leaf spot
(Septoria lycopersici)
Target spot
(Corynespora cassiicola)
Late Blight
(Phytophthora
infestans)
5.0 to 6.0 fl. oz./A
6.0 fl. oz./A
Integrated Pest (Disease) Management: Quadris should be integrated into an overall disease
management strategy that includes proper selection of varieties with disease tolerance, removal
of plant debris in which inoculum overwinters, plant residue management, crop rotation and
proper timing and placement of irrigation.
Resistance Management: When Quadris is being applied for the control of early blight, late blight,
Septoria leaf spot and/or anthracnose, no more than one foliar application of Quadris or other QoI
fungicides should be made before alternating with a fungicide with a different mode of action. If
late blight should occur during an early blight spray program, switch immediately to the late blight
spray program beginning with a fungicide that has a different mode of action. Do not make more
than five foliar applications of Quadris or other QoI fungicides per acre per year.
Application Directions: Quadris applications should begin prior to disease development and continue
throughout the season following the resistance management guidelines. For late blight, Quadris
should be applied at a five- to seven-day interval. For all other tomato diseases, Quadris should be
applied on seven- to 21-day intervals. Applications may be made by ground, air or chemigation.
Use of an adjuvant may result in severe phytotoxicity.
Quadris should not be applied until 21 days after transplanting or 35 days after seeding.
Do not apply more than 0.6 lb. a.i./A per season of products containing azoxystrobin.
Quadris may be applied the day of harvest (zero-day preharvest interval (PHI)).
*Please consult the Quadris product label for complete use directions.
Q U A D R I S
15

Q U A D R I S O P T I 16
Quadris Opti – Proven Yield and Quality
Benefits in a Convenient Premix
Quadris Opti fungicide combines the active
ingredients in Bravo Weather Stik and Quadris in
a convenient formulation to provide growers with
powerful, proven performance against a variety of
fungal pathogens. Quadris Opti is highly effective
against a wide range of diseases affecting tomatoes,
including anthracnose, early blight, late blight and
black mold. Complementing the excellent systemic
activity and proven performance of Quadris, Bravo
Weather Stik provides a different mode of action for
resistance management. Bravo Weather Stik also has a
patented Weather Stik formulation that sticks and stays
on the plant longer than any other fungicide available.
Quadris Opti is the choice when superior efficacy and
sound resistance management are necessary to protect
yield and quality.
T O M AT O E S

Quadris Opti Recommendations for Tomatoes*
Target Diseases Use Rate Remarks
Anthracnose
(Colletotrichum coccodes)
Black Mold
(Alternaria alternata)
Buckeye Rot
(Phytophthora spp.)
Early Blight
(Alternaria solani)
Late Blight
(Phytophthora infestans)
Powdery Mildew
(Leveillula taurica)
Septoria Leaf Spot
(Septoria lycopersici)
Target Spot
(Corynespora cassiicola)
Q U A D R I S O P T I
T O M AT O E S
1.6 pts./A Integrated Pest (Disease) Management: Quadris Opti should be integrated into an overall disease
management strategy that includes proper selection of varieties with disease tolerance, removal of
plant debris in which inoculum overwinters, plant residue management, crop rotation and proper
timing and placement of irrigation.
Resistance Management: No more than one application of Quadris Opti or other strobilurins
(QoI Group 11 fungicides) should be made before alternating with a fungicide with a different
mode of action. Do not make more than five foliar applications of Quadris Opti or other
QoI Group 11 fungicides per acre per year.
Application Directions: Quadris Opti applications should begin prior to disease development and
continue throughout the season following the resistance management guidelines.
Quadris Opti should be applied on a five- to seven-day schedule for control of late blight. For all other
diseases, make applications on a seven- to 21-day schedule. If conditions are favorable for severe
epidemics, use the shorter application intervals. Applications may be made by ground, air or chemigation.
Quadris Opti should not be applied until 21 days after transplanting or 35 days after seeding.
Quadris Opti should not be applied six days before or after a post-emergence broadcast application of Sencor ® .
Adjuvants should not be used as they may increase the potential for severe phytotoxicity.
Specific Use Restrictions: Do not apply more than 0.5 lb. a.i. of azoxystrobin per acre per year.
Do not apply more than 15.0 lbs. a.i. of chlorothalonil or products containing chlorothalonil per acre
per year. Quadris Opti may be applied the day of harvest (zero-day PHI).
*Please consult the Quadris Opti product label for complete use directions.
17

Revus Top …
Break the Mold
Revus Top fungicide offers growers exceptional,
broad-spectrum control of many foliar diseases,
including early blight and late blight in tomatoes.
Revus Top also has activity on leaf spot, anthracnose,
black mold and other diseases. Containing two
highly active ingredients, mandipropamid and
difenoconazole, Revus Top is conveniently pre-mixed
for easy, economical disease control.
R E V U S T O P 18
T O M AT O E S

Revus Top Recommendations
for Tomatoes*
Target Diseases Use Rate Remarks
T O M AT O E S
Anthracnose
(Colletotrichum spp.)
Black Mold
(Alternaria alternata)
Early Blight
(Alternaria solani)
Gray Leaf Spot
(Stemphylium botryosum)
Late Blight
(Phytophthora infestans)
Leaf Mold
(Fulvia fulva)
Powdery Mildew
(Leveillula taurica)
Septoria Leafspot
(Septoria lycopersici)
Target Spot
(Corynespora cassiicola)
5.5 to 7.0 fl. oz./A Begin application prior to disease development and continue throughout the season on a sevento
10-day interval. Make no more than two consecutive applications before switching to another
effective fungicide with a different mode of action. Use the shorter interval and/or higher rates
under high pressure or when conditions are conducive to disease.
The addition of a spreading/penetrating type of adjuvant such as a non-iconic surfactant or crop oil
concentrate or blend is recommended when applying by ground or air.
Application Directions:
For best results, use sufficient water volume to provide thorough coverage. Revus Top may be
applied by ground, chemigation or aerial application.
Specific Use Restrictions:
• Do not apply more than 28.0 fl. oz./A per season of Revus Top.
• Do not apply more than 0.52 lb. a.i./A per season of products containing mandipropamid.
• Do not apply more than 0.46 lb. a.i./A per season of products containing difenoconazole.
• Do not apply within one day of harvest (one-day PHI).
• Do not use on varieties in which the mature tomatoes will be less than 2 inches
(such as cherry tomatoes).
*Please consult the Revus Top product label for complete use directions.
R E V U S T O P
19

R I D O M I L G O L D B R A V O S C 20
Ridomil Gold Bravo SC –
Powerful Disease Protection
for Tomatoes
Ridomil Gold Bravo SC fungicide is an optimized
combination of systemic and protectant fungicides that
contains the same proven active ingredients found in
Ridomil Gold ® and Bravo Weather Stik. Ridomil Gold,
a systemic fungicide containing the active ingredient
mefenoxam, provides control of downy mildew and
late blight diseases in certain crops. Bravo Weather Stik,
containing the active ingredient chlorothalonil, is a
broad-spectrum protectant fungicide that controls many
diseases and is an excellent resistance management tool.
T O M AT O E S

Ridomil Gold Bravo SC Recommendations
for Tomatoes*
Target Diseases Use Rate Remarks
T O M AT O E S
Early Blight
(Alternaria solani)
Fruit Rot
(Phytophthora spp.)
Gray Leaf Spot
(Stemphylium
botryosum)
Anthracnose
(Colletotrichum spp.)
Black Mold
(Alternaria alternata)
Late Blight
(Phytophthora infestans)
Leaf Mold
(Cladosporium fulvum)
Septoria Leaf Spot
(Septoria lycopersici)
Gray Mold
(Botrytis cinerea)
Rhizoctonia Fruit Rot
(Rhizoctonia solani)
2.5 pts./A
2.5 to 3.25 pts./A
Integrated Pest (Disease) Management:
Integrate Ridomil Gold Bravo SC into an overall disease management
strategy that includes selection of varieties with disease tolerance, optimum
plant populations, proper fertilization, plant residue management, crop
rotation and water management practices.
Begin preventive applications early in the season when conditions are
favorable for disease (before infection). Apply the labeled rate of a
protectant fungicide between Ridomil Gold Bravo SC applications.
Under severe disease pressure for anthracnose, black mold, gray mold
or Rhizoctonia fruit rot, use the high rate and add Bravo Weather Stik
(1.0 pt./A) or Bravo Ultrex ® (0.9 lb./A) to the tank.
Specific Use Restrictions:
Do not apply within five days of harvest (five-day PHI). Do not exceed the
equivalent of 15.0 lbs. a.i./A per season of products containing chlorothalonil.
Do not exceed the equivalent of 1.0 lb. a.i./A per season of soil-applied and
0.5 lb. a.i./A per season of foliar-applied products containing mefenoxam.
*Please consult the Ridomil Gold Bravo SC product label for complete
use directions.
R I D O M I L G O L D B R A V O S C
21

Get Effective Tomato
Protection with
Ridomil Gold GR
Ridomil Gold GR is an efficient, granular systemic
fungicide, ideal for use on tomatoes. Soil applications
of Ridomil Gold GR at planting will provide effective
control of damping-off caused by Pythium spp. Soil
applications four to 12 weeks before harvest under
the vines will control fruit rot and root rot caused by
Pythium spp. and Phytophthora spp. Use Ridomil
Gold GR as an integral part of a tomato disease
management program for best results.
R I D O M I L G O L D G R 22
T O M AT O E S

Ridomil Gold GR Recommendations
for Tomatoes*
Target Diseases Use Rate Remarks
T O M AT O E S
Damping-off
(Pythium spp.)
Root and Fruit Rot
(Phytophthora spp.)
(Pythium spp.)
20.0 lbs./A Applicator Settings: It is important to calibrate each granular applicator before its use. Even after calibration, check
the actual application rate under your operating conditions.
Application Instructions: Damping-off (Pythium spp.): Apply 20.0 lbs. per treated acre uniformly over the surface of
the soil at planting. If natural rainfall is not expected before the seeds begin germinating, Ridomil Gold GR should be
incorporated mechanically with ½ to 1 inch sprinkler irrigation. For banded applications, a 7-inch band is recommended.
Root and Fruit Rot (Phytophthora spp. and Pythium spp.): Additional applications can be made as soil surface applications
under the vines to provide control of root and fruit rot. If only one application is planned, apply 20.0 lbs. per treated
acre under the vines four weeks after the planting application to four weeks before harvest, depending on the
expected occurrence of the diseases. If root and fruit rot is a problem throughout the growing season or the occurrence
of diseases cannot be predicted, make two additional applications at 10.0 lbs. per treated acre under the vines, one
application four to six weeks after the planting application and another four weeks before harvest. If rainfall is not
expected within three days of the application, follow as soon as possible with 1 /2 to 1 inch overhead irrigation.
Ridomil Gold GR can be shanked into the beds with fertilizer. For calculating the amount of Ridomil Gold GR needed
per acre, apply the same amount as would be applied on a 7-inch band at 20.0 lbs. per treated acre. To obtain uniform
disease control, Ridomil Gold GR must be mixed uniformly with the fertilizer.
To avoid possible illegal residues, do not apply more than 40.0 lbs. per treated acre per season, and do not apply
within seven days of harvest. Do not use Ridomil Gold GR for disease control in greenhouse or field-grown
vegetable bedding plants.
*Please consult the Ridomil Gold GR product label for complete use directions.
R I D O M I L G O L D G R
23

R I D O M I L G O L D M Z W G 24
Ridomil Gold MZ WG –
Increased Protection for
Tomatoes Against Late Blight
Ridomil Gold MZ WG is a dual-ingredient, systemic
fungicide used to control diseases caused by members
of the oomycete family of fungi. It contains mefenoxam
and mancozeb, which also provide resistance management.
When used as a foliar application in a preventive disease
control program, Ridomil Gold MZ WG will provide
effective control of late blight caused by Phytophthora
infestans. Use Ridomil Gold MZ WG as an integral part of
a tomato disease management program for best results.
T O M AT O E S

Ridomil Gold MZ WG Recommendations
for Tomatoes*
Target Diseases Use Rate Remarks
T O M AT O E S
Late Blight
(Phytophthora
infestans)
2.5 lbs./A Begin preventive applications early in the season when conditions are favorable for disease (before
infection) and continue at 14-day intervals until the threat of disease is over. Apply the labeled rate
of a protectant fungicide between Ridomil Gold MZ WG applications. If conditions are favorable after
making three applications of Ridomil Gold MZ WG, use other fungicides registered for control of late
blight in tomatoes.
Specific Use Restrictions:
Ridomil Gold MZ WG may be applied up to five days before harvest (five-day PHI). A maximum of 10.0
lbs. of Ridomil Gold MZ WG may be used per crop per acre each season. If other registered fungicides
containing EBDC active ingredients are used during the growing season, do not exceed a total of 16.8
lbs. EBDC a.i./A on tomatoes grown east of the Mississippi River and 6.4 lbs. EBDC a.i./A on tomatoes
grown west of the Mississippi River. If tank mixed with other products containing EBDC a.i., do not
exceed 2.4 lbs. EBDC a.i./A east of the Mississippi River or 1.6 lbs. EBDC a.i./A west of the Mississippi
River per application. Do not exceed the equivalent of 0.5 lb. a.i./A per season of foliar-applied products
containing mefenoxam.
*Please consult the Ridomil Gold MZ WG product label for complete use directions.
R I D O M I L G O L D M Z W G
25

Get More Tomato Protection
with Ridomil Gold SL
Ridomil Gold SL is a systemic fungicide in a
contemporary formulation that contains the active
ingredient mefenoxam and provides effective control
of certain soil-borne and foliar diseases on a wide
range of crops. The improved formulation offers
enhanced environmental and handling characteristics
and is the premier product for controlling diseases
caused by oomycete species, including soil-borne
Pythium spp. and Phytophthora spp. Use
Ridomil Gold SL as an integral part of a tomato
disease management program for best results.
R I D O M I L G O L D S L 26
T O M AT O E S

Ridomil Gold SL Recommendations
for Tomatoes*
Target Diseases Use Rate Remarks
T O M AT O E S
Damping-off
(Pythium spp.)
Root and Fruit Rot
(Phytophthora spp.)
(Pythium spp.)
1.0 to 2.0 pts./A
1.0 pt./A
Soil Spray (Broadcast or Band): Apply at planting in water or liquid fertilizer.
For banded application, a 7-inch band is recommended.
Injection (Drip Irrigation):
Initiate control of root and fruit rot with a soil application as described above. Make subsequent
applications through drip irrigation. Make the first drip application four to six weeks after
planting. Apply the second drip application as needed up to four weeks before harvest but
before the last irrigation.
For injected applications, base rate calculations on a 7-inch band.
Soil Spray (Broadcast or Band) or Soil Injection:
Apply as a directed soil surface spray under the vines or injected into the beds with water or
liquid fertilizer.
Make an application four to six weeks after planting. If needed, make a second application up
to four weeks before harvest, but before the last irrigation.
Do not exceed the equivalent of 1.5 lbs. a.i./A per crop of soil-applied products containing
mefenoxam and 0.5 lb. a.i./A per crop of foliar-applied products containing mefenoxam.
*Please consult the Ridomil Gold SL product label for complete use directions.
R I D O M I L G O L D S L
27

Disease
Identification
D I S E A S E S

A N T H R A C N O S E 30
Anthracnose – Colletotrichum coccodes
Symptoms
Depressed, circular
lesions that can enlarge
to about 1 to 2 cm in
diameter appear on
ripe fruit.
As lesions mature,
they show concentric ring
markings and become
dotted with small black
specks. In moist weather,
masses of salmon-colored
spores may form on the
lesion surface.
T O M AT O E S

T O M AT O E S
Disease Cycle
Anthracnose is primarily a disease of ripe and
overripe fruit. The fungus overwinters as microsclerotia
on plant debris, which germinates and produces conidia
when conditions are wet and warm. The fungus may
infect fruit resting on the soil surface or it may be
rain-splashed to fruit higher up in the canopy. Infection
may occur while fruit is immature, but symptoms are
not expressed on the fruit until it matures and ripens.
Conditions for Development
Optimum conditions for infection include
temperatures from 68º to 75º F combined with free
moisture. Dissemination is favored by splashing
rain and overhead irrigation.
A N T H R A C N O S E
31

B A C T E R I A L S P E C K 32
Bacterial Speck – Pseudomonas syringae
Symptoms
Leaf lesions are round
and dark brown to black
with a yellow halo that
develops with time.
Lesions may coalesce,
killing large parts of
leaves.
T O M AT O E S

T O M AT O E S
Other structural parts of the
plant such as petioles can be
infected. Symptoms are expressed
as oval to elongated lesions.
Disease Cycle
The bacterium that causes bacterial speck is
seed-borne but the importance of seed-borne inoculum
is not known. The bacterium is disseminated by
splashing rain and by machinery. The bacterium
may also survive for many weeks in crop residue.
Bacterial speck is a polycyclic disease.
Tiny dark lesions (smaller than
1 mm in diameter) may develop on
fruit. The tissue around each fruit
speck may be a more intense green
than unaffected areas, resulting in
a dark green halo around the spot.
Conditions for Development
High humidity, rainfall and temperatures
between 64º to 75º F favor disease development.
B A C T E R I A L S P E C K
33

B A C T E R I A L S P O T 34
Bacterial Spot – Xanthomonas campestris
Symptoms
On leaves, stems and
fruit, small lesions are
generally brown and
circular and less than
3 mm in diameter.
Immature lesions look
water-soaked when
wet with rain or dew.
Fruit lesions start
as tiny raised blisters.
They increase in size
and become brown
and scab-like.
T O M AT O E S

T O M AT O E S
Disease Cycle
Bacterial spot can survive on tomato volunteers,
diseased plant debris and seed. It may be disseminated
on seed and within a field by rain splashing, transplant
clipping, or by workers or equipment moving through
the field. Bacterial spot is a polycyclic disease.
Conditions for Development
Disease development is favored by temperatures
of 75º to 86º F and extended periods of rainfall.
B A C T E R I A L S P O T
35

B L A C K M O L D 36
Black Mold – Alternaria alternata
Symptoms
Light to dark brown
lesions on the surface
of ripe fruit range from
small flecks to large
sunken lesions. During
warm, humid weather,
the fungus sporulates
to form a black velvetlike
layer on the lesion
surface.
T O M AT O E S

T O M AT O E S
Disease Cycle
Black mold survives on infected tomato debris in
the soil. Spores are disseminated via wind or splashing
water. Infection occurs when spores are blown onto
plants or when plants contact infested soil. The
fungus can infect fruit through wounds or other
damaged tissue.
Conditions for Development
Because free water is required for spore germination
and infection, black mold usually occurs following rains,
heavy dew or overhead irrigation. Symptoms may be
observed within four to five days after infection during
optimal environmental conditions that include
temperatures between 75º to 82º F.
B L A C K M O L D
37

B U C K E Y E R O T 38
Buckeye Rot – Phytophthora parasitica, P. capsici and P. drechsleri
Symptoms
A white cottony fungal
growth may appear on
lesions under high
moisture conditions.
Fruit lesions often
show a pattern of
concentric rings of
alternating dark brown
and light brown bands.
T O M AT O E S

T O M AT O E S
Disease Cycle
Buckeye rot infection occurs when fruit contacts
soil-borne inoculum, either by resting on the soil
surface or by mud splashing. The buckeye rot fungus
produces sporangia that give rise to zoospores under
optimal environmental conditions. The spores can
infect directly through the tomato skin. The pathogen
may be disseminated by surface water movement
and/or rain splashing.
Conditions for Development
Buckeye rot is most common during periods of
prolonged warm, wet weather. Widespread losses
may develop in conditions of excessive soil moisture
and soil temperatures of 64º to 86º F. Soil that holds
water for five hours or longer due to compaction or
poor drainage favors infection.
B U C K E Y E R O T
39

D A M P I N G - O F F 40
Damping-off – Pythium spp.
Symptoms
Seed decay or seedling
death prior to emergence
from the soil; death of
emerged seedling or
transplants as roots rot;
lower stems appear
water-soaked and
shriveled at the soil
line, followed by plant
wilt and death may occur.
T O M AT O E S

T O M AT O E S
Disease Cycle
Species of Pythium naturally inhabit the soil.
Infection in plant tissue is influenced by soil moisture,
soil temperature, pH, cation composition, light and
the presence of other organisms.
Conditions for Development
Optimum conditions for infection include wet soils
during seeding through the first two weeks after
transplanting. Soil moisture near saturation stimulates
mycelium vegetative growth. Plants are more
susceptible under these conditions: too high or too
low temperatures; excessive moisture; poor quality
light or unbalanced nutrition.
D A M P I N G - O F F
41

E A R L Y B L I G H T 42
Early Blight – Alternaria solani
Symptoms
Immature lesions are
small and brownish black,
often with a yellow halo,
and usually occur on older
foliage. As lesions enlarge,
concentric rings may be
observed.
Stem lesions on seedlings
are dark, slightly sunken,
and have concentric
rings and light-colored
centers. Stem lesions may
girdle the plant, causing
collar rot.
T O M AT O E S

T O M AT O E S
Fruit lesions grow large and
usually have concentric rings.
Diseased areas appear leathery
and may be covered by a velvety
mass of black spores.
Disease Cycle
The early blight fungus survives between crops on
soil debris, on seed and on volunteer tomato plants
and other solanaceous hosts. Primary infection occurs
early in the season from conidia that are rain-splashed
onto new seedlings. Lesions are visible two to three
days after infection. Conidia formed on lesions serve
as a secondary inoculum and are wind-disseminated.
By late season, under favorable
conditions for disease development,
premature defoliation may occur.
Conditions for Development
Periods of mild, rainy weather are ideal for infection.
Conidia require free moisture for germination that
can occur in just 35 to 45 minutes at temperatures of
82º to 86º F. Heavy dew or frequent rains are necessary
for abundant sporulation. Early blight is usually less
severe on tomatoes grown under high fertility.
E A R L Y B L I G H T
43

Gray Leaf Spot –
G R A Y L E A F S P O T 44
Stemphylium solani, S. floridanum and
S. botryosum f.sp. lycopersici
Symptoms
Immature lesions are
barely visible and typically
limited to the leaf surface
itself. Circular to oblong
brownish black specks are
randomly scattered over
the leaf surface and are
unrestricted by veins.
Occasional lesions
develop on petioles and
stems that are linear and
parallel to the stem itself.
Mature leaf lesions can
reach 2 to 4 mm or more in
diameter and may coalesce,
killing large areas of the
leaf blade. The center of
leaf lesions may dry out
and crack. The entire
leaf may yellow and
eventually defoliate.
T O M AT O E S

T O M AT O E S
Disease Cycle
Gray leaf spot often occurs during the first true-leaf
stage of plant development. The fungus remains viable
from season to season on infected plant debris or on
other plant hosts such as pepper, horsenettle, etc.
Infection may occur in seedbeds or in field-seeded
seedlings. Conidia serve as both primary and secondary
inoculum and are disseminated by the wind or during
transplanting. Symptoms may occur within five days
of infection.
Conditions for Development
The optimum temperature for spore germination
is 78º to 80º F. Spores germinate quickly under warm,
moist conditions with extensive growth in a single
night. Optimum temperature for sporulation is
73º to 80º F.
G R A Y L E A F S P O T
45

G R A Y M O L D 46
Gray Mold – Botrytis cinerea
Symptoms
Sporulation of the
fungus from infected
necrotic tissue produces
a fuzzy, gray-brown
appearance. Lesions may
girdle the stem and cause
the plant to wilt above
the lesion.
Lesions on fruit are
typical of soft rot with
decayed regions. Skin
ruptures and sporulation
occurs in the center of
the decayed area.
T O M AT O E S

T O M AT O E S
Disease Cycle
The disease survives from season to season as
sclerotia on woody plant tissue or as saprophyte on
organic matter in soil. In addition, the fungus has a
wide host range and may survive on these hosts.
Conidia serve as secondary inoculum and are
disseminated by wind. Gray mold of foliage is usually
associated with some type of wounding or injury and
primarily affects mature plants with a dense canopy.
Conditions for Development
Infection occurs in cool weather and does not require
prolonged periods of high humidity. The optimum
temperature for infection is 64º to 73º F. Plants grown
in acidic, sandy soils with high water content are
particularly susceptible to gray mold.
G R A Y M O L D
47

L A T E B L I G H T 48
Late Blight – Phytophthora infestans
Symptoms
Young leaf lesions first
appear as water-soaked
areas on the leaflets that
enlarge quickly and turn
pale green to brown.
In moist weather, the
lesions on the undersides
of the leaf may show a
moldy, gray to white
growth, which is the
sporulation of the fungus.
T O M AT O E S

T O M AT O E S
As lesions mature, they turn
brown and cause general leaf
dieback.
Disease Cycle
Late blight survives on volunteer plants and on
abandoned plant material, such as cull piles. Sporangia
serve as the primary inoculum and are carried by wind to
other plants. Sporangia may germinate directly and infect
the plant, or, if temperatures are 54º to 59º F, sporangia
may produce zoospores that in turn infect the plant.
When conditions are favorable, the disease develops so
fast it appears as if the crop has been frost-damaged.
Fruit lesions appear as dark
olive, greasy spots that may enlarge
to cover the whole fruit.
L A T E B L I G H T
Conditions for Development
The disease is most active during cool, moist weather,
especially cool nights and warm days. Optimum conditions
for sporulation are 91 percent to 100 percent humidity
and 64º to 72º F. Optimum temperatures for zoospore
formation and germination are 54º to 59º F.
Temperatures above 86º F are unfavorable for disease
development, although the pathogen can survive.
49

P O W D E R Y M I L D E W 50
Powdery Mildew – Leveillula taurica
Symptoms
The most commonly
seen symptoms of
powdery mildew are
light green to bright
yellow lesions on the
upper surface of the leaf.
Necrotic spots may
develop in their centers.
A light powdery layer
may cover the lesion on
the leaf surface. Heavily
infected leaves die but
usually do not drop from
the plant.
T O M AT O E S

T O M AT O E S
Disease Cycle
Powdery mildew probably overwinters on weed
hosts. Conidia, the primary source of infection, are
wind-borne and serve as both primary and secondary
inoculum. Powdery mildew is a polycyclic disease.
Conditions for Development
Conidia can germinate in a wide range of
temperatures, from 50º to 95º F. Infection is favored by
temperatures under 86º F and high relative humidity.
Once infection is established in a tomato leaf,
temperatures above 86º F can speed up symptom
development and death of leaf tissue.
P O W D E R Y M I L D E W
51

S E P T O R I A L E A F S P O T 52
Septoria Leaf Spot – Septoria lycopersici
Symptoms
The first symptoms are
usually visible on lower
leaves after the first fruit
sets and may also appear
on stems, petioles and
the calyx. Disease spreads
upward, from oldest to
youngest growth. Fruit
infection is rare.
The centers of leaf
lesions are usually dotted
with black pycnidia and
often have a narrow
yellow halo. Lesions can
enlarge to 5 mm in
diameter. Numerous leaf
lesions can cause infected
leaves to turn chlorotic,
then brown and wither.
T O M AT O E S

T O M AT O E S
Disease Cycle
Septoria leaf spot overwinters on infected tomato
debris or on stakes or cages. Conidia, the primary
inoculum, are spread by splashing irrigation water,
rain, or by workers and equipment. Symptoms may
appear within six days after inoculation, with pycnidia
visible about 14 days after inoculation. Septoria leaf
spot is a polycyclic disease.
Conditions for Development
Optimum temperatures between 68º to 77º F encourage
infection and symptom development. Long periods of
high relative humidity, high temperatures and leaf
wetness are ideal conditions for disease development.
S E P T O R I A L E A F S P O T
53

S O U T H E R N B L I G H T 54
Southern Blight – Sclerotium rolfsii
Symptoms
Infected plants suffer
a sudden and permanent
wilt of all aboveground
parts.
Brown to black stem rot
appears on plant parts in,
on or near the soil line.
Lesions develop rapidly,
completely girdling the stem.
Under moist conditions,
white mycelium develops
on lesions and extends up
the stem of mature plants.
Tan to reddish brown
sclerotia averaging 1 to
2 mm in diameter appear
on the maturing lesion.
T O M AT O E S

T O M AT O E S
White mycelium and
sclerotia are usually
observed in and on
infected fruit.
Disease Cycle
The fungus infects fruit that comes into contact
with infested soil. Fruit lesions appear sunken and
slightly yellow with a ruptured epidermis. Lesions are
water-soaked, soft and often star-shaped. Infected fruit
collapses within three to four days. Brown lesions with
surface mycelium appear on foliage that contacts
infected soil. The fungus can survive for several years
as sclerotia in soil and on host debris. Sclerotia serve
as the primary inoculum. The pathogen may be
disseminated through soil movement by equipment
or by water. Southern blight is a monocyclic disease.
Conditions for Development
Optimum conditions for infection include moist
air and temperatures between 86º to 95º F.
S O U T H E R N B L I G H T
55

T A R G E T S P O T 56
Target Spot – Corynespora cassiicola
Symptoms
Small water-soaked
lesions appear on the
upper leaf surface. They
gradually increase in
size, becoming round and
pale brown. Conspicuous
yellow halos develop.
Lesions may coalesce,
causing tissue collapse.
Petiole and stem lesions
are brown and oblong
and may girdle and kill
leaflets.
On young fruit, lesions
first appear as dark,
pinpoint brown spots.
They may enlarge and
develop into sunken
lesions. Ripe fruit
develops large round
lesions with pale brown
centers, which may crack.
T O M AT O E S

T O M AT O E S
Disease Cycle
The fungus has a very wide host range and probably
overwinters as mycelium and conidia on infected plant
debris. Conidia serve as primary and secondary inoculum.
Spores are most likely disseminated via splashing water
and wind. Target spot is a polycyclic disease.
Conditions for Development
Optimum conditions for disease development
include temperatures from 68º to 82º F and long
periods (16 to 44 hours) of high moisture. Infection
occurs at 60º to 90º F.
T A R G E T S P O T
57

W H I T E M O L D 58
White Mold (Sclerotinia Stem Rot) – Sclerotinia sclerotiorum
Symptoms
Infected stems are soft
with a light gray bleached
appearance.
Hard, black sclerotia
with white interiors
readily form inside stems.
The sclerotia assume the
elongated shape of the
stem cavity or take on a
tubular form. White mold
occurs on plants during
flowering. Infection
begins in leaf axils or in
stem joints where petals
have fallen and lodged,
producing water-soaked
areas that eventually die.
T O M AT O E S

T O M AT O E S
Disease Cycle
The fungus overwinters as sclerotia in soil and
on infected plant debris. The sclerotia give rise to
spore-producing bodies called apothecia in early spring.
Apothecia produce ascospores that serve as primary
inoculum for disease development. Ascospores are
disseminated via wind. The fungus can also enter
mature plants at the soil line. Mycelial growth spreads
between lush, overlapping plants, killing large circular
areas of infected plants within the field. Infected fruit
appears gray and rapidly breaks down in a watery rot.
The disease is generally monocyclic. However, disease
spread from plant to plant may occur via contact of
healthy plants with diseased plants or with the
fungus mycelium.
Conditions for Development
Cool, moist conditions with high humidity and free
moisture favor disease development. Long periods
of continuous wetness are necessary for ascospore
and plant tissue infection and lesion expansion.
Poor air circulation and moisture retention promote
disease development. White mold is more prevalent
in low-lying areas, in fields adjacent to heavily
wooded lots and in crops with lush vegetation.
W H I T E M O L D
59

Syngenta
Seeds
R O G E R S

S Y N G E N T A S E E D S / R O G E R S 62
ROGERS – Making Superior Vegetables a Reality
Proper variety selection is the foundation for
effective disease management. With more than
125 years of experience, ROGERS has tomato varieties
to fit all growers’ production needs. With additional
resources devoted to the program and a global
germplasm base, the Syngenta Seeds tomato-breeding
program is positioned to lead in the development
of top quality varieties.
Selected ROGERS tomato varieties have resistance
or tolerance to: Fusarium wilt, Verticillium wilt,
Stemphylium, tobacco mosaic virus and bacterial speck.
T O M AT O E S

T O M AT O E S
Variety Description Approx. Culture Approx. Fruit Disease
Maturity Size Characteristics Resistance
DETERMINATE OPEN FIELD
Bobcat In California mature green and vine-ripe Early to Bush / Mostly Beef, globe shape, uniform green HR: Fol (1, 2);
markets, Bobcat has demonstrated fruit mid- Stake extra large shoulders, jointed, very firm. S; V
quality, uniformity and firmness.
season and large IR: Ss
Valleycat Valleycat is a mature green tomato developed Mid- Bush Mostly Deep red color; firm; excellent HR: Fol (1, 2);
for California growing regions. This main season extra large internal structure for slicing. S; V; M
season variety has demonstrated yields of
and large
extra large and large fruit and a medium
sized, vigorous plant.
QualiT 21 QualiT 21 delivers excellent firmness, internal Mid- Bush / Mostly Uniform green shoulders. HR: Fol (1, 2);
structure and uniform ripening for California season Stake extra large Excellent fruit size and firmness. M; S; Ss;
growers and features high resistance to
tobacco mosaic virus and some root-knot
and large ToMV (0-2);
TMV; V
nematode races.
QualiT 23 QualiT 23 meets growers’ demand for a Mid- to Bush / Mostly Uniform green shoulders. HR: Fol (1, 2);
season-long tomato program suitable for late- Stake extra large Uniform fruit size and shape. V; TMV;
summer and fall harvests in the Central Valley season and large Excellent firmness. ToMV
of California.
S Y N G E N T A S E E D S / R O G E R S
63

S Y N G E N T A S E E D S / R O G E R S
64
Variety Description Approx. Culture Approx. Fruit Disease
Maturity Size Characteristics Resistance
DETERMINATE OPEN FIELD continued
Mountain Mountain Spring produces excellent size, Early to Stake / Mostly Globe. Uniform green shoulders. HR: Fol (1, 2);
Spring firmness and high yield for the Carolinas, mid- Bush extra large Firm and tolerant to cracking. S; Ss; V
the Midwest and the Northeast.
season
and large
Sebring A mid-season, determinate beef tomato Mid- Stake Mostly Smooth, deep oblate, firm, HR: Fol (1, 2, 3);
producing mostly extra large and large fruit, season extra large thick walled fruit. For; Ss; V
uniform green shoulders and fruit quality
and large
characteristics that have been excellent in trials.
Redline Redline features a disease package ideal for Mid- Stake Mostly Very firm fruit. HR: Fol (1, 2, 3);
growers in the Southeast U.S. contending season extra large TSWV; V; S
with TSWV and Fusarium 3 disease pressure,
and large
and is especially well-suited for Eastern U.S.
stake culture.
T O M AT O E S

T O M AT O E S
Variety Description Approx. Culture Approx. Fruit Disease
Maturity Size Characteristics Resistance
DETERMINATE OPEN FIELD continued
Finishline Finishline produces large and extra large Mid- Stake Mostly Very firm fruit, high red color. HR: Fol (1, 2, 3);
fruit, is well-suited for staked production season extra large TSWV; V; S
areas and features an excellent disease
and large
resistance package including TSWV and
Fusarium 3. In internal trials, Finishline
performed best in light to medium pruning.
DETERMINATE SALADETTE
MiRoma MiRoma offers high packouts in the San Mid- Bush / Mostly Blocky saladette with very thick HR: Fol (1, 2,);
Joaquin Valley and has produced high yields season Stake extra large walls and good interior/exterior M; Pst; V
and large, blocky saladettes with smooth,
and large color.
firm, extra large and large fruit in trials.
S Y N G E N T A S E E D S / R O G E R S
65

R O G E R S T O M A T O V A R I E T I E S 66
ROGERS Tomato Varieties
For a complete listing of
ROGERS varieties, please refer to
www.rogersadvantage.com.
Finishline
Sebring
MiRoma
Bobcat
T O M AT O E S

Abbreviation Key:
Fol: Fusarium wilt caused by the specified races of
Fusarium oxysporum f.sp. lycopersici
For: Fusarium crown and root rot caused by
Fusarium oxysporum f.sp. radicis-lycopersici
M: Root knot caused by Meloidogyne arenaria,
M. ingognita and M. javanica
Pst: Bacterial speck caused by Pseudomonas
syringae pv. tomato
Ss: Gray leaf spot caused by Stemphylium solani
TMV: Mosaic caused by tobacco mosaic virus
ToMV: Mosaic caused by tomato mosaic virus
TSWV: Spotted wilt caused by tomato spotted wilt virus
V: Verticillium wilt caused by the specified race of
Verticilium albo-atrum, V. dahliae
Pathogen races are indicated to the right of the
abbreviation in parentheses [example: Fol (1,2) =
Fusarium wilt caused by races 1 and 2 of Fusarium
S Y N G E N T A S E E D S / R O G E R S
T O M AT O E S
oxysporum f.sp. lycopersici]. In cases where specific
races or strains are not noted, the variety is resistant
to some but not necessarily all known races or strains
of the pathogen.
Note:
All variety information presented herein is based
on field and laboratory observation. Actual crop
yield, quality and level of claimed pest and pathogen
resistances are dependent upon many factors beyond
our control and NO WARRANTY is made for crop
yield, quality and level of claimed pest and pathogen
resistances. Because environmental conditions and
local practices may affect variety characteristics and
performance, we disclaim any legal responsibility for
these. Read all tags and labels. They contain important
conditions of sale, including limitations of warranties
and remedies.
67

S Y N G E N T A S E E D S / R O G E R S 68
Abbreviation Key continued:
HR: High Resistance: describes plant varieties that
highly restrict the growth and development of
the specified pest or pathogen under normal
pest or pathogen pressure when compared to
susceptible varieties. However, highly resistant
varieties may exhibit some symptoms or damage
under heavy pest or pathogen pressure.
IR: Intermediate Resistance: describes plant varieties
that restrict the growth and development of the
specified pest or pathogen, but may exhibit a
greater range of symptoms or damage compared
to highly resistant varieties. Intermediately
resistant varieties will still show less severe
symptoms or damage than susceptible plant
varieties when grown under similar environmental
conditions and/or pest or pathogen pressure.
www.rogersadvantage.com
T O M AT O E S

T O M AT O E S
Syngenta Resources
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the edge needed to grow excellent crops.
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P.O. Box 18300
Greensboro, NC 27419
For emergencies call 1-800-888-8372
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Syngenta Customer Center
● For product support and compliance call
1-866-796-4368
www.syngentacropprotection.com
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● Sales representative finder to locate your
local representative
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● Company news and product updates
www.FarmAssist.com
FarmAssist.com ® provides:
● Local pest and agronomic alerts
● Detailed pest library
● Crop scouting reports
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Syngenta Seeds
Syngenta Seeds, Inc.
ROGERS Brand Vegetable Seeds
600 North Armstrong Place (83704)
P.O. Box 4188
Boise, ID 83711-4188
Tel 1-800-462-0608
www.rogersadvantage.com
Photo Credits
APS (American Phytopathological Society)
K. Brownell J.P. Jones H. Yonce
V. Greeson M. Moss
R E S O U R C E S
69

www.rogersadvantage.com
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