citrus crop Protection Guide

citrus crop Protection Guide

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InnovatIve mode of actIon
to control destructIve Insects.
Producing a high-quality citrus crop requires protection from tough-tocontrol
insects. Delegate WG insecticide features an innovative active
ingredient called spinetoram, which effectively controls citrus psylla,
citrus leafminer and more. Effective control — combined with favorable
application features and low or no impact on beneficials — makes
Delegate WG a valuable part of a citrus insect control program.
How delegate WG can benefit
a citrus insect control program.
• Broad-spectrum control of today’s toughest citrus pests, including Asian
citrus psylla, citrus leafminer, citrus orangedog and avocado leafroller
• New mode of action (Group 5 insecticide), providing a new product to
rotate in the fight against psyllid and leafminer
• No tank-mixing required when control of citrus leafminer is needed and
Asian citrus psylla is present
• Fast knockdown plus residual control deliver continuing activity across
multiple insect growth stages
• Re-entry interval (REI) of just four hours allows for more convenient
completion of other important tasks
• Preharvest interval (PHI) of just one day offers the potential for greater
application flexibility prior to harvest
• Delegate WG maintains populations of most beneficial insects without
flaring secondary pests
• Spinetoram received the 2008 Presidential Green Chemistry Challenge
Award from the EPA
• For application rates, see the back cover
Protection for key citrus crops.
• Oranges • Tangerines • Grapefruits • Lemons • Limes
Key pests controlled.
• Asian citrus psylla (vector for citrus greening — one of the biggest
issues facing the citrus industry today 1 )
• Citrus leafminer (predisposes tree to canker)
• Citrus orangedog
• Lepidopterous larvae, including:
– Fruit tree leafroller
– Avocado leafroller

spinetoram — an innovative mode of action
for superior insect control.
Spinetoram, the active ingredient in Delegate WG, is the latest
development in the spinosyn class of chemistry. Spinetoram
provides long-lasting control of a broad spectrum of insect
pests in a variety of crops — all at low rates with minimal
impact on most beneficial insects. It also delivers multiple
advantages in an insect control program, including:
• Increased activity across multiple insect growth stages
• Photostability provides residual control
• Translaminar activity, or leaf penetration, provides
effective control of leafminer larvae
• Early results of trials indicate the potential for four
to five weeks of Asian citrus psylla control
• Fits Integrated Pest Management (IPM) programs
and increases options for resistance management
• Maintains populations of many beneficial insects
and related organisms
resistance management notes.
• Do not make more than two consecutive applications of Group 5 insecticides (spinetoram and spinosad).
• Rotate to another class of effective insecticides for at least one application if additional treatments are
required after two consecutive applications of Group 5 insecticides.
• Do not use Delegate WG insecticide in citrus nurseries or on citrus in greenhouses.
• Make no more than three applications per calendar year.
fast and lasting control of leafminers.
Delegate WG delivers fast knockdown and long-lasting control of leafminers during summer flush —
to help prevent canker and protect the value of oranges, grapefruit, lemons and more.
INSECTICIDE
figure 1. efficacy of delegate WG Insecticide against citrus leafminer on navel oranges (24 days after application)
Agri-Mek 10 oz*
Delegate 4 oz*
Untreated
No leafminer pupae 24 days after Delegate application.
0 1 2 3 4
5
Pupae/10 terminal flush samples
One spray application, spring 2007. Lukasz Stelinski, University of Florida, Lake Alfred, Fla.
*Includes adjuvant
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figure 2. efficacy of delegate WG Insecticide against citrus leafminer on valencia oranges (28 days after application)
controls multiple growth stages of asian citrus psylla.
The innovative mode of action of Delegate WG is effective against both adults and nymphs of the tough-to-control
Asian citrus psylla, which helps manage the spread of the devastating effects of citrus greening (see Page 7).
figure 3. control of asian citrus Psyllid adults (21 days after treatment)
Dimethoate 1 pt*
Agri-Mek 20 oz*
Agri-Mek 10 oz*
Sevin XLR 2 qts*
Provado 10 oz*
Mustang 4.3 oz
Danitol 16 oz
Delegate 4 oz*
Lorsban ®
-4E 5 pt*
Untreated
Dimethoate 1 pt*
Agri-Mek 20 oz*
Agri-Mek 10 oz*
Sevin XLR 2 qts*
Provado 10 oz*
Mustang 4.3 oz
Danitol 16 oz
Delegate 4 oz*
Lorsban ®
-4E 5 pt*
Untreated
0 1 2
Mean number of psyllids per 10 flushes
3 4
(Trial 2008-10. UF/IFAS/Citrus Research & Education Center, Lake Alfred)
*Includes adjuvant
figure 4. control of asian citrus Psyllid nymphs (21 days after treatment)
0 .10 .20
Psyllid nymph ratings per flush
.30 .48
(Trial 2008-10. UF/IFAS/Citrus Research & Education Center, Lake Alfred)
*Includes adjuvant
To learn more about the importance of controlling Asian citrus psyllid to manage the spread of citrus greening,
see Page 7. To learn more about Delegate WG insecticide, visit www.DelegateInsecticide.com. For more information
about Dow AgroSciences or any of our crop protection products, e-mail us at info@dow.com, call 1-800-258-3033
or visit our Web site at www.FarmSmart.com.
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Agri-Mek 5 oz*
Delegate 4 oz*
Citrus oil 435 2% v/v
Untreated
0 10 20 30 40 50 60 70
Percent of leaves damaged
One spray application, 2006. University of Florida, Lake Alfred, Fla.
*Includes adjuvant
INSECTICIDE

select a funGIcIde to matcH your sPecIfIc needs.
Dow AgroSciences offers a family of fungicides to help producers
control diseases in high-value citrus crops. For an overview of the entire
Dow AgroSciences portfolio for selected crops and diseases, see the back cover.
enable ® 2f fungicide provides lasting protection for citrus fruit.
A supplemental label allows Enable 2F to be used as a protectant fungicide
with these benefits:
• Can be applied to a wide range of citrus fruits, including, but not limited
to: citrus hybrids, oranges, grapefruit, lemons, limes and tangerines
• Controls three important diseases at the 8 fl. oz./acre rate: greasy spot
(rind blotch), scab and sooty mold
• Delivers a minimum of 14-day residual protection and is highly resistant
to wash-off because of its excellent penetration of the plant
• Provides reach-back activity of two to four days, offering extra protection
against disease already present
• One-day preharvest interval — can be applied up to the day of harvest
• See the product label for complete rates, timing and application information
timing.
Greasy spot: • Make first application at the normal time in your area
• Make a second application after the first summer flush for control of greasy spot
of foliage and rind blotch of fruit
• For high-value fruit, a third application may be made for fruit protection
Scab: • Make the first application between feather flush and 25 percent expansion of spring leaf flush
• Make a second application at petal fall
• Apply another fungicide three to four weeks later for control of late scab and early melanose
Sooty mold: • Applications made for control of greasy spot or scab will also control sooty mold
Optimum disease control may be obtained by applying Enable 2F with a nonionic surfactant or spray oil at a
manufacturer’s recommended rate and making a thorough coverage application. Do not apply Enable 2F with
polymer-based spray adjuvants.
Do not make more than three applications per year.
resistance management notes.
Enable 2F belongs to the sterol demethylation inhibitor (DMI) class of fungicides or Group 3 fungicides.
The use of Enable 2F should be part of a resistance management strategy that includes alternation and/or
mixing with fungicides of different target sites of action. Consult your local or state agricultural authorities
for resistance management strategies that are appropriate for your disease management program.
FUNGICIDE
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a relIable Partner for versatIle and effectIve Insect control.
Dow AgroSciences is advancing one of the most trusted solutions you rely on. Now, Lorsban ® insecticide is available in
a new formulation called Lorsban Advanced insecticide. It provides all the benefits of Lorsban-4E in a low-odor, water-
based formulation. Benefits of Lorsban Advanced include:
• Same great efficacy as Lorsban-4E — including quick knockdown and residual control — at the same use rate
• First chlorpyrifos low-odor and low-VOC formulation
• Easy to handle and apply using the same use rates as Lorsban ® -4E insecticide
• Same tank-mix flexibility with pesticides, fertilizers and adjuvants as Lorsban-4E
• Significantly lower odor than Lorsban-4E when applied
• Higher flash point (2x higher than Lorsban-4E) due to its water-based formulation; fewer restrictions on
transportation and storage
• Broad-spectrum insect control in multiple crops using a variety of application methods — Lorsban Advanced
controls sucking insects, chewing insects and soil insect pests, and can be used to treat row, tree and specialty crops
• Backed by Dow AgroSciences, offering unprecedented customer service, including quality technical field support,
and knowledgeable and experienced sales representatives
controls key pests in citrus.
• Asian citrus psylla (vector for
citrus greening)
• Citrus rust mites (Florida only)
• Scale insects
• Mealybugs
• Aphids
• Lepidopterous larvae, including:
– Avocado leafroller
– Cutworms
– Citrus orangedog
• Grasshoppers
• Katydids
• Foraging ants (orchard floors)
timing.
Treat when pests become
a problem or in accordance
with the local spray schedule
as recommended by your
State Agriculture Experiment
Station, certified Pest Control
Adviser or Extenson Service
Specialist. For application
rates, see the back cover.
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citrus greening management.
Monitor populations by checking mature leaves for adults and flush shoots
for all stages. Dormant spray: Spray Lorsban Advanced once or twice on all
citrus during the dormant season to target overwintering adults surviving
on mature foliage. Ask a Dow AgroSciences representative for details.
It’s critical to control the spread of citrus greening.
• Citrus greening is already a “10” on a threat scale of 1 to 10 in Florida,
according to Andrew Meadows of Florida Citrus Mutual. He calls it “the
biggest issue the industry is facing right now.” 1
• Citrus greening is caused by one of the three strains of the bacteria Candidatus Liberibacter — Asian, African or
American. It has caused worldwide catastrophic losses to the citrus industry and it is expected to continue to spread.
• The disease is commonly called citrus greening because fruit from infected trees does not ripen properly —
particularly those areas not directly exposed to sunlight.
• Citrus greening is incurable and it results in a chronic decline of citrus. Once the tree is infected, there is
no known way to effectively control the disease, other than tree removal.
• A symptomatic tree may have a life expectancy of only three to five years. Young trees will not reach maturity
and infected mature trees will produce significantly less fruit until death.
• The disease has not been eradicated because it cannot be detected early enough — symptoms are not expressed
for up to three years after the tree is infected.
• Industry experts agree that controlling the disease’s insect vector, the Asian citrus psyllid (Diaphorina citri),
is critical to managing the spread of citrus greening.
• Rotate classes of insecticides to prevent resistance development.
It’s practical to use delegate WG insecticide and/or
lorsban ® advanced insecticide.
Each has its strengths in an Asian citrus psyllid control program.
delegate WG provides:
• New class of chemistry (spinetoram)
• Excellent control of Asian citrus psylla, plus other key pests
• Maintenance of most populations of beneficials; doesn’t flare mites
• REI: four hours
• PHI: one day
lorsban advanced provides:
INSECTICIDE
• Cost-effectiveness
• Broad-spectrum control
• Excellent residual control
• Practical dormant spray solution
• Compatible with many insecticides, miticides and fungicides
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ely on our Pest manaGement PortfolIo for cItrus croPs.
Dow AgroSciences continues to make a significant investment in research and development. As a result,
we can provide technological advancements and forward-thinking solutions to address pest problems
and protect crops — both today and tomorrow. This table provides an overview of our citrus portfolio.
QuIcK reference for veGetable croPs †
( † Selected crops, pests and diseases. See the product labels for complete information.)
InsectIcIdes Key Pests rates
delegate WG Citrus leafminer
Asian citrus psylla
Citrus orangedog
Lepidopterous larvae, including:
– Fruit tree leafroller
– Avocado leafroller
lorsban ® advanced Aphids
Grasshoppers
Katydids
Lepidopterous larvae
Citrus rust mites
www.farmsmart.com 800-258-3033
1 Weise E. ‘Greening’ disease threatens the core of U.S. citrus crops. USA Today, September 25, 2008:9D.
3 – 6 oz./acre
Control of leafminer and psylla may be improved by the addition of an adjuvant
to the spray mixture
3 – 6 oz./acre
2 – 7 pts./acre*
Asian citrus psylla (Florida 2[ee]) 5 pts./acre
(For best results add citrus oil at 2% v/v)
funGIcIde diseases rate
enable ® 2f**
Scab
Greasy spot
Sooty mold
8 oz./acre
* Under Product Bulletin (2ee) recommendation, Lorsban Advanced is foliar-applied at a rate of 5 pints per acre per application for control of citrus psylla on citrus. Best results are seen when Lorsban Advanced is tank-mixed
with citrus oil at 2% v/v.
**Supplemental label (not for use in California).
® Delegate, Enable, Lorsban, M-Pede and “Science. Yield. Success.” are trademarks of Dow AgroSciences LLC Lorsban Advanced, Lorsban-4E, Agri-Mek, Mustang and Danitol are federally Restricted Use Pesticides.
State restrictions on the sale and use of Enable apply. Consult the label before purchase or use for full details. Always read and follow label directions. L01-359-004 (2/09) BR 010-32669 DAAGDELE8021