2018-2019 Horticultural Catalog

plant growth regulators
Cutless 0.33G
Flurprimidol
GROUP 1 – Cell Elongation
Inhibitor
Description: Systemic growth regulation
for landscape ornamentals.
Mode of action: Acts as an inhibitor of
enzymes catalyzing the steps in GA
biosynthesis.
Labeled for: Perennial landscape and
container grown ornamental plants.
Benefits: Systemic activity reduces
plant growth in a wide range of rapidly
growing landscape ornamentals.
Plants: Perennial non-woody ground
covers and herbaceous landscape
ornamentals;
Methods: Apply under dripline of plants and water in.
Precautions: Do not apply more than 909 lbs per year.
Signal word: Caution;
EPA No: 67690-13
Rate: 3.5 to 20.9
lbs/1000 ft 2
Cycocel
Chlormequat
GROUP 1 – Cell Elongation
Inhibitor
Description: Ornamental PGR for use in
greenhouses; usually used for shorter-term
inhibition
Mode of action: Inhibits gibberellic acid
synthesis
Labeled for: Greenhouses
Benefits: Enhances aesthetic appeal (short,
compact and greener) and improves durability
during post-production shipping; Regulates
growth for 1-3 weeks
Plants: Poinsettias, geraniums, bedding
plants, hibiscus, azaleas and woodies
Methods: Spray and drench
Precautions: Slight temporary yellowing
near margins of young leaves
Signal word: Warning;
EPA No: 241-74-
59807
Rate: 0.22-4.34 fl oz per
gallon
REI: 12 hours
Plant Growth Regulators
Paczol
Paclobutrazol 0.4%
GROUP 2 – Cell Elongation Inhibitor
Description: PGR for use on ornamental plants
grown in containers that reduces internode
growth delivering compact plants
Mode of action: Xylem plant growth regulator that
slows vegetative growth by inhibiting gibberellin
biosynthesis
Labeled for: Nurseries, greenhouses, shade houses
and interiorscapes
Benefits: Reduces internodal growth, creates stout
stems, increases root growth, early fruits and seed
set, improves drought, frost, disease tolerance and creates darker
leaves
Plants: Bedding plants, plugs, flowering foliage, herbaceous, woody
species and bulbs
Methods: Spray, drench and bulb soaks
Precautions: Avoid reusing pots that were used for treated plants
EPA No: 400-515-59807
Rate: 1-30 ppm drench, 5-100 ppm spray, 1ppm = 1ml/gal, 5 ppm =
4.7ml/gal, 30 ppm =
1 fl oz/gal
REI: 12 hours
Price per Each
Size Catalog # 1-9 10 & up
21 lb bag 03-01100 $ 170.00 $ 161.50
40 lb bag 03-01120 285.00 270.75
DO
NOT
FREEZE
Price per Each
Size Catalog # 1-3 4 & up
Quart 03-03000 $ 60.25 $ 55.11
Gallon 03-03010 160.00 150.00
Price per Each
Size Catalog # 1-3 4 & up
Gallon 03-03030 $ 165.00 $ 153.15
ProGibb T&O
Gibberellic Acid
Growth and Flowering Stimulant
Description: Naturally occurring PGR that
stimulates rapid stem and root growth as
well as breaking bud and seed dormancy
Mode of action: Stimulates cell division
and elongation
Labeled for: Greenhouses, golf courses,
parks and sod farms
Benefits: Approved for organic production;
increases flower size and number as well
as stem elongation; can be used to help
overcome a PGR overdose
Turf benefits: Allows bermuda grass to
stay green during periods of cold weather
Plants: Azaleas, lilies, camellias, geraniums,
pompom mums, cut flowers and
Bermuda grass
Precautions: Strongly dependent on
spray volume
Signal word: Danger; EPA No: 73049-15
Rate: 0.003-3.8 fl oz per
gallon
REI: 12 hours
Truck ship only
SpinOut
Copper hydroxide
GROUP 2 – Chemical Pinch
Description: Designed to control root growth
in container grown plants
Mode of action: As roots come into contact
with a SpinOut-treated container, they
become inhibited, not damaged. Because
elongation stops, that growth energy
stimulates the development of secondary
and lateral roots promoting a fibrous and
healthy root system
Labeled for: Application to containers or fabric
Benefits: Promotes a healthier, more natural
and more efficient root structure
Plants: Vegetables, cereals, annuals, trees and shrubs
Precautions: Store above 32° F (0° C) and protect from freezing
Signal word: Danger; EPA No: 67690-26
Rate: 1 gallon SpinOut per 1 quart water
REI: 8 hours
Shortstop
Paclobutrazol
GROUP 2 – Cell Elongation Inhibitor
Description: Systemic plant growth regulator
that slows above ground vegetative
growth by inhibiting gibberellin
biosynthesis on trees
Mode of action: Suppresses growth
by blocking three separate steps
in the terpenoid pathway for the
production of gibberellins or the
stimulation of cell elongation
Benefits: Redistributed energy,
altered leaf physiology, enhanced
root hair growth, reduced
production of gibbrellic acid, and
increased production of abscisic acid and chlorophyll
Plants: Trees
Precautions: Hazardous to humans and domestic animals
Signal word: Warning; EPA No: 80697-4-82866
Rate: 50-200 ml/inch
DBH
REI: 12 hours
Price per Each
Size Catalog # 1-11 12 & up
Quart 03-04500 $ 79.50 $ 73.33
Truck ship only.
Price per Each
Size Catalog # Each 2 & up
2.5 Gal 03-03100 $ 225.00 $ 210.00
Price per Each
Size Catalog # 1-3 4 & up
.5 Gal 03-03200 $ 250.00 $ 232.50
Gallon 03-03210 410.00 389.50
70 800-325-3055
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