PROGRESS IN THE USE OF A SPRAY TABLE TO SIMULATE AERIALLY-APPLIED PLANT DEPOSITS TO DETERMINE EFFICACY
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: email@example.com
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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