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

2.1 How to Use This Publication

Throughout their history, “Cornell Guidelines” (formerly “Recommendations”) have provided technical greenhouse production information based on research findings and proven industry experience.

 

Change is a constant companion of the greenhouse manager. New technology, competition, and changes in the regulatory environment have stimulated an emphasis on environmental stewardship, employee and public safety, and more efficient uses of operational resources. These opportunities are components of a crop production management program known as integrated management.

 

This publication emphasizes an integrated approach to the management of arthropods, diseases, weeds, and other pests as well as an integrated approach to crop growth regulation. Both pest management and growth management currently involve the use of agricultural chemicals. The intent of this publication is to emphasize responsible use of agricultural chemicals as well as alternatives to chemical control.

 

As outlined in the table of contents, this publication emphasizes the integrated management of greenhouse crop pests and greenhouse crop growth. The following chapters of this publication highlight management alternatives, especially techniques other than chemical application.

 

To assist in the appropriate choice of chemicals to supplement these techniques, details related to pesticide and growth regulator registration are provided in the tables.

 

2.2 Conversion Chart

For many situations, only small volumes of pesticide are needed to control pests or regulate crop growth. Mixing a realistically estimated amount of the required material minimizes the need to dispose of excesses. The following conversions can be made for mixing small volumes.

 

2.2.1 Dry Products

Dry products are measured by weight, and the following conversions can be used.

Pounds

Ounces

Kilograms

Grams

 

1

0.028

28

1.0

16

0.454

454

2.2

35

1.000

1,000

 

Because the density (weight of a unit volume) of dry products differs with each product, there is no relationship between weight (avoirdupois) ounces and volume (fluid) ounces. Each product must be weighed and the volume for that weight recorded for future reference if volumetric measuring is desired.

 

The following conversions have been established for mixing small volumes of some pesticides and growth regulators. Accurately measure using level spoonfuls. Products listed might not be registered for use in New York state, consult label and state resources prior to use.

 

Product                                                Lb./100 Gal.     Tsp/Gal.

Fungicides

3336 WP–50% .................................. 0.5 to 1.5         1 1/2 to 4 1/2

Aliette 80WP...................................... 1 to 2   23/8 to 4 3/4

Banrot 40WP..................................... 0.4 to 0.75       1/2 to 1 1/4

Chipco 26019 50WP.......................... 0.4 to 2.0         1 1/4 to 6 1/2

Dithane M45 80WP........................... 1.5                   2

Terrazole 35WP................................. 0.2 to 0.75       1/4 to 1

Truban 30WP..................................... 0.5 to 0.75       3/4 to 1 1/2

Insecticides/Miticides

Orthene T,T&O.................................. 1                      3

Talstar ............................................... 0.38 to 2.00     1 to 5

 

For the growth retardant *B-Nine 85WP, the 0.4 oz/gal. rate is approximately equivalent to 1 level teaspoonful per 20 fluid ounces, or 2 1/2 cups.

 

2.2.2 Liquid Products

Liquid products are measured by volume. Use the table below for volumetric conversions.


 

Gallons

1

 

 

 

 

 

 

0.26

Quarts

4

1

 

 

 

 

 

1.06

Pints

8

2

1

 

 

 

 

2.11

Cups

16

4

2

1

 

 

 

4.22

Fluid Ounces

128

32

16

8

1

 

 

33.8

Tablespoons

 

 

32

16

2

1

 

 

Teaspoons

 

 

 

48

6

 

 

 

Milliliters

3,785

946

473

236

30

15

5

1,000