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ARS Home » Midwest Area » Wooster, Ohio » Application Technology Research » Research » Publications at this Location » Publication #97578
Title: METHODS AND TECHNIQUES IN DETERMINING SPRAY QUALITY

Author
item Fox, Robert
item Derksen, Richard
item OZKAN, H - OSU
item Brazee, Ross

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 12/17/1998
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: The efficacy of chemicals sprayed on plants to control pests depends on chemical formulation, concentration and deposit pattern on foliage. The application pattern on the leaf is the key to optimizing efficient utilization of pesticides. The current goal of an ideal application is to apply spray uniformly throughout the plant canopy. However, some pests are concentrated in specific sections of the canopy, i.e., the bottom center, the top center, or perhaps on the under side of leaves. In these cases we may want to target spray to the infested regions and a non-uniform pattern would be preferred. At a smaller scale, the deposit pattern on individual leaves or fruit may be important. Several techniques for assessing the deposit pattern are discussed. Again, the specific target or pesticide used may determine the best deposition pattern.