2010 Ohio Vegetable Production Guide: Handling Pesticides

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Suggestions on Pesticide Application:

  • Cover foliage uniformly, including undersides of leaves; improper application of the material to foliage results in poor insect and disease control.
  • The use of spray adjuvants (additives) may improve the performance of pesticides in some cases. Adjuvants sometimes provide better distribution and retention of insecticides and fungicides on plant foliage. However, experimental results have been variable. Before use, read the label and follow directions. Also, refer to “Spray Adjuvants or Additives” below.
  • Use recommended amounts of pesticides per acre regardless of volume of spray used.
  • Use specific recommended pesticides to control specific pests.
  • Time spray applications according to recommendations for specific pests. Consider growing rate of the crop for new, unprotected foliage.
  • Regardless of the type of spray equipment used, avoid situations where pesticide drift may be a problem.
  • Do not spray when temperatures exceed 90°F. At high temperatures, oil-based sprays can burn plants.

Topics in this guide:

  • Spray Adjuvants or Additives
  • Use of Ground Equipment
    • Boom-Type Sprayers

    • Boom Sprayer Calibration
    • Airblast-Type Sprayers
  • Use of Aerial Application Sprayers
  • Sprayer Delivery Rates
  • How to Improve Pest Control
  • Evaluating Physical Compatibility of Pesticides on a Small Scale Before Tank Mixing
  • Pesticide Formulations
  • Storing Pesticides for Next Season
Authors: 
Robert J. Precheur
Authors: 
Mark Bennett
Authors: 
Brad Bergefurd
Authors: 
Luis Cañas
Authors: 
David Francis
Authors: 
Gary Gao
Authors: 
Casey Hoy
Authors: 
Jim Jasinski
Authors: 
Mark Koenig
Authors: 
Matt Kleinhenz
Authors: 
Hal Kneen
Publisher: 
Ohio State University Extension
Year: 
2010