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EFFECTS OF CARBOFURAN ON ARTHROPOD POPULATIONS AND CROP YIELD IN HAYFIELDS

Published online by Cambridge University Press:  31 May 2012

C. D. Dondale
Affiliation:
Research Institute, Canada Department of Agriculture, Belleville, Ontario

Abstract

Carbofuran was applied to three hayfields at a rate of 0.56 kg/ha in early June. This caused significant reductions of Thysanoptera, phytophagous Coleoptera larvae (including the alfalfa weevil, Hypera postica (Gyl.)), and Cicadellidae. It caused similar reductions in Araneida and parasitoids. The differences between treated and untreated plots were no longer significant by September. Carbofuran did not significantly affect the yield of air-dried hay or of crude protein.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1972

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