Pest Management Guidelines - greenhouse
Pest Management Guidelines
A Cornell Cooperative Extension Publication

  
Cornell Guide for Pest Management of Greenhouse Floral Crops

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1 Pesticide Information

11 Growth Regulators for Greenhouse Floral Crops

Contents

Table 11.1. Growth regulators for greenhouse floral crops. 1

Defoliation. 1

Promoters of Stem Elongation. 1

Promoters of Branching and/or Pinching. 2

Promoters of Flowering and/or Breaking of Dormancy. 3

Promoters of Flower Size. 6

Promoters of Rooting. 6

Retardants of Stem Elongation. 7

Suppressants of Flower Initiation and Development 10

Suppressants of Senescence. 11

Suppressants of Stem Topple. 12

 

 

Table 11.1. Growth regulators for greenhouse floral crops

            Common Name

Brand Name

Formulation

EPA Reg. No.

REI§

Defoliation

            ethephon

Pistill

3.9% L

54705-8

72

                    Registered crops: greenhouse, shade house, and field-grown floriculture crops

                    Registered method of application: spray

Registered rates of application: determine optimal rates through trials as specified on the labels; see label for rates and methods for plumaria and rose.

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information: www.montereylawngarden.com/products/labels.html

 

Promoters of Stem Elongation

gibberellic acid

GibGro 4LS

4% L

55146-62

4

 

ProGibb T&O

4% L

73049-15

12

Registered crops: ornamental crops, cut flowers, and turfgrass

 

 

Registered methods of application: spray

 

 

Registered rates of application: determine optimal rates through trials as specified on the labels; see label for rates and methods for pompon chrysanthemum peduncles, and stems of aster, delphinium, larkspur, Queen Anne’s lace, stock, and sweet william and additional cut flowers.

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information:

 

 

GibGro 4LS, www.ag.us.nufarm.com

 

 

ProGibb T&O, www.valent.com

 

 

N-(phenylmethyl)-1H-purine 6-amine + gibberellins A4A7

Fascination

1.8%+1.8% L

73049-41

4

Registered crops: bedding plants, annual and perennial potted crops, bulb crops

 

 

Registered method of application: spray

 

 

Registered rates of application: determine optimal rates through trials as specified on the labels

 

 

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information: www.valent.com

 

 

Promoters of Branching and/or Pinching

dikegulac-sodium

Atrimmec

18.5% L

2217-776

12

Registered crops: Greenhouse and nursery ornamentals

 

 

Registered method of application: spray

 

 

Registered rates of application: determine optimal rates through trials as specified on the labels; see label for rates for aeschynanthus, azalea, begonia (Elatior and cheimantha), bougainvillea, cissus, clerodendrum, fatshedera, fuchsia, gardenia, hedera, ivy geranium, kalanchoe, lantana, pachystachys, pittosporum, schefflera, and verbena; see label for complete listing.

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information: http://www.pbigordon.com/professional/alphabeticalList.htm

 

ethephon

Pistill

3.9% L

54705-8

72

Registered crops: greenhouse, shade house, and field-grown floriculture crops

 

Registered method of application: foliar spray

 

 

Registered rates of application: determine optimal rates through trials as specified on the labels; will also retard stem elongation; may be used in combination with mechanical pinching; see label for rates and methods for stock plants (except azalea), New Guinea impatiens, and finished plants.

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information: www.montereylawngarden.com/pdf/pistill.pdf

 

 

methyl esters of fatty acids

Off-Shoot-O

45% EC

57582-1

12

Registered crops: ornamentals

 

 

Registered method of application: spray

 

 

Registered rates of application: determine optimal rates through trials as specified on the labels; see labels for rates for azalea.

 

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

            For MSDS information: www.cochrancorp.com

 

 

Promoters of Flowering and/or Breaking of Dormancy

chlormequat

Cycocel

11.8% L

241-74-59807

12

Registered crops: ornamentals in greenhouses

 

 

Registered methods of application: spray, drench

 

 

Registered rates of application: determine optimal rates through trials as specified on the labels; see labels for rates for azalea and seed geranium.

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information:www.olympichort.com

 

 

daminozide

*B-Nine WSG

85% SG

400-478

24

 

*Dazide 85 WSG

85% SG

62097-17-82917

24

Registered crops: azalea

 

 

Registered methods of application: spray

 

 

Registered rates of application: see label for rates for florist azalea.

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information:

 

 

B-Nine WSG, http://pgrx.ohp.com

 

 

Dazide 85 WSG, www.fine-americas.com

 

 

ethephon

Pistill

3.9% L

54705-8

72

Registered crops: greenhouse, shade house, and field-grown floriculture crops

 

Registered method of application: foliar spray

 

 

Registered rates of application: determine optimal rates through trials as specified on the labels; see labels for rates for several bromeliad genera.

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information: www.montereylawngarden.com/pdf/pistill.pdf

 

 

gibberellic acid

GibGro 4LS

4% L

55146-62

4

 

ProGibb T&O

4% L

73049-15

12

Registered crops: ornamental crops, cut flowers, and turfgrass

 

 

Registered method of application: spray

 

 

Registered rates of application: determine optimal rates through trials as specified on the labels; see label for rates and methods for azalea, calla lily, camellia, geranium, and cut flower aster, gypsophila, spathiphyllum, and statice (Limonium).

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information:

 

 

GibGro 4LS, www.ag.us.nufarm.com

 

 

ProGibb T&O, www.valent.com

 

 

paclobutrazol

Bonzi

0.4% L

100-996

12

 

Downsize

0.4% L

80697-3-82866

12

 

Paczol

0.4% L

400-515

12

 

Piccolo

0.4% L

62097-11

12

Registered crops: nursery, greenhouse, shade house, and interior plants

 

Registered methods of application: bulb soak, chemigation, drench, spray; Downsize can be applied as drench only

 

Registered rates of application: determine optimal rates through trials as specified on the labels; see labels for rates for florist azalea.

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

                    For MSDS information:

 

 

 

Bonzi, www.syngentaprofessionalproducts.com/labels/

 

 

Downsize, www.greenleafchemical.com

 

 

Paczol, http://pgrx.ohp.com/

 

 

Piccolo, www.fine-agrochemicals.com

 

 

Promoters of Flower Size

gibberellic acid

ProGibb T&O

4% L

73049-15

12

Registered crops: ornamental crops, cut flowers, and turfgrass

 

 

Registered method of application: spray

 

 

Registered rates of application: determine optimal rates through trials as specified on the labels; see label for rates and methods for geranium.

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information: www.valent.com

 

 

Promoters of Rooting

            indole-3-butyric acid

Hormodin 1

0.1% P

69916-1

0

 

Hormodin 2

0.3% P

69916-2

0

 

Hormodin 3

0.8% P

69916-3

0

Registered crops: cuttings of ornamentals

 

 

Registered method of application: dip of basal end of cuttings

 

 

Registered rates of application: see label for rates and methods

 

 

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information:

 

 

Hormodin—Griffin Greenhouse Supply, 1619 Main Street, P.O. Box 36, Tewksbury, MA 01876-0036.

indole-3-butyric acid + 1-naphthaleneacetic acid

Dip ‘N Grow

 1.0% + 0.5% L

64388-1

24

Registered crops: cuttings of ornamentals

 

 

Registered method of application: dip of basal end of cuttings

 

 

Registered rates of application: see label for rates and methods

 

 

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information: www.dipngrow.com/dngmsds.html

 

 

Retardants of Stem Elongation

ancymicol

A-Rest

 0.0264%L

67690-2

12

Registered crops: ornamental plants grown in nurseries, greenhouses, shade houses, and interiorscapes

Registered methods of application: spray, drench, chemigation

 

 

Registered rates of application: determine optimal rates through trials as specified on the labels; see labels for rates for azalea, several bedding plant species, bleeding heart, bulb or fibrous root crops, chrysanthemum, columbine, delphinium, Easter lily, fatshedera, gardenia, hydrangea, liatris, plugs, poinsettia.

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information: www.sepro.com

 

 

chlormequat

Cycocel

11.8% L

241-74-59807

12

Registered crops: ornamentals in greenhouses

Registered methods of application: spray, drench

Registered rates of application: determine optimal rates through trials as specified on the labels; see labels for rates for azalea, bedding plants, geranium, hibiscus, poinsettia, other herbaceous and woody crops, and tank mix with daminozide (*B-Nine, Dazide).

For label information: http://pmep.cce.cornell.edu/pims/current

For MSDS information: www.olympichort.com

daminozide

*B-Nine WSG

85% SG

400-478

24

 

*Dazide

85% SG

62097-17-82917

24

Registered crops: container-grown ornamental plants in commercial or research greenhouses, shade houses, and nurseries

Registered methods of application: spray, cutting dip

Registered rates of application: determine optimal rates through trials as specified on the labels; see label for rates for azalea, bedding plants, chrysanthemum (pot and cut), foliage plants, gardenia, hydrangea, plugs, poinsettia, and tank mix with chlormequat (cycocel)

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information: 

 

 

B-Nine WSG,http://pgrx.ohp.com

 

 

Dazide, www.fine-americas.com

 

 

ethephon

Pistill

3.9% L

54705-8

72

Registered crops: greenhouse, shade house, and field grown floriculture crops

 

Registered methods of application: foliar spray

 

 

Registered rates of application: determine optimal rates through trials as specified on the labels; associated with delayed flowering (see Suppressants of Flower Initiation and Development).

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information: www.montereyawngarden.com/pdf/pistill.pdf  

 

 

flurprimidol

*Topflor

0.38% L

67690-20

12

Registered crops: Greenhouse application only in NYS.

 

Registered methods of application: drench, spray No chemigation allowed in NYS.

 

Registered rates of application: determine optimal rates through trials as specified on the labels; see labels for rates for bedding plants, bulbs, flowering/foliage potted plants, herbaceous perennials, poinsettia, and woody landscape plants.

 

For label information: http://pmep.cce.cornell.edu/pims/current

 

For MSDS information: http://www.sepro.com

 

paclobutrazol

Bonzi

0.4% L

100-996

12

 

Downsize

0.4% L

80697-3-82866

12

 

Paczol

0.4% L

400-515

12

 

Piccolo

0.4% L

62097-11

12

Registered crops: nursery, greenhouse, shade house, and interior plants

 

Registered methods of application: bulb soak, chemigation, drench, spray; Downsize can be applied as drench only

 

Registered rates of application: determine optimal rates through trials as specified on the labels; see labels for rates for amaryllis, florist azalea, caladium, calla lily, chrysanthemum, dahlia, freesia, geranium, hibiscus, hybrid lily, montbretia, poinsettia.

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information:

 

 

Bonzi, www.syngentaprofessionalproducts.com/labels/

 

 

Downsize, www.greenleafchemical.com/

 

 

Paczol, http://pgrx.ohp.com/

 

 

Piccolo, www.fine-agrochemicals.com

 

 

uniconazole-P

Sumagic

0.055% L

59639-37

12

Registered crops: Container plants grown in commercial greenhouses, lath houses, and shade houses

Registered methods of application: foliar spray, soil surface spray, drench, pre-plant bulb soak

Registered rates of application: determine optimal rates through trials as specified on the labels; see labels for rates for annual and perennial bedding plants, azalea, bulbs, chrysanthemum, Easter lily, geranium, poinsettia

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information: www.valent.com

 

 

Suppressants of Flower Initiation and Development

ethephon

Pistill

3.9% L

54705-8

72

Registered crops: greenhouse, shade house, and field-grown floriculture crops

Registered method of application: foliar spray

Registered rates of application: determine optimal rates through trials as specified on the labels; see label for rates and methods for stock plants (except azalea), New Guinea impatiens, and finished plants.

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

                        For MSDS information: www.montereylawngarden.com/pdf/pistill.pdf

gibberellic acid

GibGro 4LS

4% L

55146-62

4

 

ProGibb T&O

4% L

73049-15

12

Registered crops: ornamental crops, cut flowers, and turfgrass

 

 

Registered method of application: spray

 

 

Registered rates of application: determine optimal rates through trials as specified on the labels; see label for rates and methods for azalea

For label information: http://pmep.cce.cornell.edu/pims/current

 

 

For MSDS information:

 

 

GibGro 4LS, www.ag.us.nufarm.com

 

 

ProGibb T&O, www.valent.com

 

 

Suppressants of Senescence