Performance Evaluations for an Automated Spray Chamber

Author:

Smith D. B.1,Luttrell R. G.1,To S. D.1

Affiliation:

1. Mississippi Agricultural & Forestry Experiment Station4 and Mississippi State University, Mississippi State, MS 39762 USA

Abstract

Spray deposits associated with an automated spray chamber developed at Mississippi State University were evaluated. The data reported herein indicate that: (1) the deposits correspond to the calibrated volumes applied per area, (2) the variation among replications within sampling locations (CV = 12.8%) was substantially less than the variation among replication/sampling location combinations (CV = 37.2%), (3) the deposits were most uniformly deposited in the center 16 cm of the spray deposit patterns for a given nozzle-pesticide combination, and (4) both the % recovery and the shape of some spray deposit patterns varied among the four insecticides tested. These results suggest that researchers could easily be testing insecticide-nozzle combination effects rather than testing for nozzle- or insecticide-effects per se. There remains a need for a quick, accurate method for quantifying pesticide (insecticide, herbicide or fungicide) deposits.

Publisher

Georgia Entomological Society

Subject

Insect Science,Agronomy and Crop Science,Ecology, Evolution, Behavior and Systematics

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