Insecticidal actions of several plants to Callosobruchus chinensis L.

Abstract

Tested Ageratum conyzoides, Blumea balsimifera. Chrysanthemum indicum, Coleus amboinicus, Vitex negundo, Azadirachta indica, Cocos nucifera, Capsicum frutescens and Piper nigrum. Oils of the first 7 plants exhibited contact toxicity with cowpea weevil mortality ranging from 66-100% at 100 mg/ml, 48 hr after exposure. At the same concentration, the oils were more toxic when mixed with the seeds, giving 100% mortality at 24 hr. C. amboinicus oil was the most toxic causing 93% mortality at 10 mg/ml within 15 minutes exposure. -from Authors

Source or Periodical Title

Bruchids and legumes. Proc. 2nd international symposium, Okayama, 1989

Page

91-100

Document Type

Article

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