PROGRESS IN THE USE OF A SPRAY TABLE TO SIMULATE AERIALLY-APPLIED PLANT DEPOSITS TO DETERMINE EFFICACY
By
Juan D. Lopez, Jr.,
Daniel E. Martin, W.
Contact: Dr. Juan Lopez, Research Entomologist, USDA-ARS, 2771 F&B Road, College Station, TX 77845 Email: j-lopez@tamu.edu
Summary:
The previous year's reported research on
the use of a spray table to simulate deposition of aerially-applied
insecticides on crop plants to determine effects on efficacy has been continued
and expanded. This paper reports the
results of these research efforts and modifications made to procedures for
obtaining defined deposits on cotton plants and to bioassay for the effect on
mortality of different insect pests such as stink bugs and cotton
fleahoppers. The emphasis has been on
evaluation of different spray rates and different insecticides at active
ingredient concentrations at or below the lowest recommended dosages. This effort was aimed at decreasing cost of
aerially-applied insect control by optimizing deposition for maximum
efficacy. This information is designed
to develop guidelines to achieve the most effective deposition for different
combinations of insect pests, insecticides, modes of action, formulations, and
crop situations.
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Note: A copy of the manuscript for this paper is not available at this time. Please email the author to receive a copy. j-lopez@tamu.edu