EVALUATION OF ELECTROSTATIC SPRAYING SYSTEM (ELECTRODYN) IN COTTON PEST MANAGEMENT
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Date
1987
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Publisher
AAU, Anand
Abstract
The efficiency of Electrodyn sprayer in the management of sucking pests and bollworms of cotton v/as evaluated along with three conventional Knapsack, Mistblower and Heli sprayers during 1983, 1984 and 1985. ED and EC formulations of cypermethrin were used fur evaluation. The toxicity of these formulations on predators and also the quantity of spray fluid deposited per unit area by various sprayers were studied. A field experiment was conducted with six treatments for the Electrodyn sprayer viz. 3% ED-0.05 ml/sec, 3% ED-0.1 ml/sec, 2% ED-0.05 ml/sec, 2% ED-0.1 ml/sec, 1.5% ED-0.1 ml/sec and 4.5% ED-0.05 ml/sec and three for Knapsack (cypermethrin 100 ppm), Mistblower (cypermethrin 200 ppm) and Heli sprayers (cypermethrin 50 gm a.i./ha) (Total nine treatments were taken Efficiency of different sprayers in reducing the sucking pest population (Aphids, Jassids, Whiteflies and Thrips) indicated that all the sprayers are equally effective in suppressing the sucking pests.
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AGRICULTURAL ENTOMOLOGY, AGRICULTURE, EVALUATION