2015 | Total Landscape Care | Chemical Guide 33
PLANT GROWTH REGULATORS
Uses
Main Effect/
Mode of Action
Uptake Turfgrass Registrations
1
Active Ingredient Primary Use(s)
Active Ingredient Brand (Manufacturer)
CYTOKININ
Improves flower and fruit set and general plant growth.
DIKEGULAC-SODIUM
Reduces growth of trees, shrubs and groundcovers;
reduces flowering and fruit on olive, privet, Japanese
holly and multiflora rose.
ETHEPHON (FLOREL)
Eliminates fruit on olive, crabapple and carob trees;
removes mistletoe from coniferous and deciduous trees.
FLURPRIMIDOL
Provides growth suppression of woody landscape
ornamental and perennial ground covers.
INDOLE-3-BUTYRIC ACID
(AUXIN)
Microinjection for flower/fruit elimination on
sweetgum.
MALEIC HYDRAZIDE
Reduces growth of trees and shrubs.
MEFLUIDIDE
Reduces growth of trees, shrubs, ground covers
and herbaceous ornamentals.
METHYL CHLORFLURENOL
Eliminates fruit set, reduces plant growth.
NAPHTHALENE ACETIC
ACID (NAA)
Prevents root suckering and trunk and basal
sprouts in woody ornamentals.
PACLOBUTRAZOL
Growth suppression of trees.
Active
Ingredient
Bermudagrass Zoysiagrass St.
Augustinegrass
Kentucky
Bluegrass
Tall
Fescue
Creeping
Bentgrass
Fine
Fescues
Perennial
Ryegrass
Kikuyugrass Bahiagrass Centipedegrass Poa
Annua
Overseeding Registration
2
Registration
for
Close-
cut
Greens
Root
Absorbed
Foliar
Absorbed
Main Effect/
Mode of Action
ETHEPHON (PROXY)
s s s s s s
Growth/seedhead inhibition
FLURPRIMIDOL
s s s s s s s s s
Growth/GA inhibition
FLURPRIMIDOL+TRINEXAPAC ETHYL
s s s s s s s s s s s
Growth/GA inhibition
MEFLUIDIDE
s s s s s s s s s s s s
Growth/seedhead inhibition
METHYL CHLORFLURENOL
s s s s s s
Growth/seedhead inhibition
PACLOBUTRAZOL
s s s s s s s s s s s
GA inhibitor
TRINEXAPAC ETHYL
s s s s s s s s s s s s s s s
GA inhibitor
PGRS FOR LANDSCAPE ORNAMENTALS*
* Does not include PGRs registered only for greenhouse/nursery use.
SOURCES OF PGRS
1
CYTOKININ
Agriplex PGR for T&O (Agrisel USA)
DIKEGULAC-SODIUM
Atrimmec (PBI-Gordon)
ETHEPHON
Ethephon 2 SL (Quali-Pro)
Florel (BR ANDT Monterey)
Pistill (BR ANDT Monterey)
Proxy (Bayer)
FLURPRIMIDOL
Cutless (SePRO)
FLURPRIMIDOL
+TRINEXAPAC ETHYL
Edgeless (SePRO)
INDOLE-3-BUTYRIC ACID
Snipper (Tree Tech)
MEFLUIDIDE
Embark T&O (PBI-Gordon)
NAPHTHALENE ACETIC
ACID (NAA)
Sucker Stopper
Concentrate/RTU (BR ANDT Monterey)
PACLOBUTRAZOL
Cambistat, Trimtect (RTSA)
Profile (SePRO)
Tide Paclo (Quali-Pro, SipcamAdvan)
TGR (Andersons)
2
Trimmit (Syngenta)
Turf Enhancer (Andersons)
2
TRINEXAPAC ETHYL
Governor G (Andersons)
Groom PGR (SipcamAdvan)
Primo MAXX (Syngenta)
T-NEX I AQ (Quali-Pro)
T-Pac SPC MEC (Nufarm)
Trin Pac Select (Prime Source)
Trinexapac ethyl 1 AQ (PrimeraOne)
1 No endorsement is implied by this listing, nor is criticism implied by
omission.
2 Available in combination with granular fertilizers, as well as singly as
a liquid.
CONTACT INFORMATION
Agrisel USA Inc.
877-247-4735
www.agrisel.com
The Andersons Inc.
800-225-2639
www.andersonsgolfproducts.com
Bayer CropScience
800-331-2867
www.backedbybayer.com
BRANDT Monterey
559-499-2100
www.brandt.co
Nufarm
800-345-3330
www.nufarm.com/us
PBI-Gordon Corp.
800-884-3179
www.gordonsprofessional.com
Prime Source
877-235-0043
www.prime-sourcellc.com
PrimeraTurf
770-675-3382
www.primeraturf.coop
Quali-Pro
800-242-5562
www.quali-pro.com
Rainbow Treecare Scientific
Advancements
952-922-3810
www.rainbowtreecare.com
SePRO
800-419-7779
www.sepro.com
SipcamAdvan
866-429-0887
www.sipcamadvan.com
Syngenta
866-SYNGENTA
www.greencastonline.com
Tree Tech
352-528-5335
www.treetech.net
1
Labels may not allow all uses on all turfgrasses indicated. Check product labels for specific use instructions.
2
This table indicates which products' labels
specify overseeding use. Others may not specify this use but do not forbid it either, and so may be appropriate for this use.
