Campus Units

Entomology, Center for Agricultural and Rural Development

Document Type

Article

Publication Version

Published Version

Publication Date

2-12-1996

Journal or Book Title

Journal of Agricultural and Urban Entomology

Volume

13

Issue

2

First Page

109

Last Page

120

Abstract

Glucosinolate components were extracted from defatted cTambe (Crambe abyssinica Hochst ex. R. E. Fries) seed meal by using four different extraction solvents. These extracts containing naturally occurring glucosinolnt.es were tested in bioassays against some selected agricultural and public health insect pests. The results showed that continuous aqueous exposure to dilutions of the extracts caused acute mortality to mosquito (Aedes aegypti (L.ll larvae. Crambe seed meal (containing intact glucosinolates) showed toxicity against house fly larvae (Musca domestica L.) when incorporated into the regular fly diet. Neither extracts nor seed meal were acutely toxic to the red flour beetle [Tribolium castaneum (Herbst» or the sawtoothed grain beetle [Oryzeaphilus surinamensis (L.U within 24 h; however, longer observation demonstrated a high mortality and antifeedanl effect toward these insects. The two species of grain beetles began dying 10 d after exposure. The glucosjnolate extracts also were effective on western corn rootworm [Diabrotica uirgi{era uirgi{cra (LeConte)1 larvae. No observable behavioral changes were found on German cockroaches IBlattella germanica (L.)]. The results showed that crambe glucosinolatcs have potential as a possible control agent for certain agricultural and public health insect pests.

Comments

This article is from Journal of Agricultural and Urban Entomology, 1996, 13(2); 109-120. Posted with permission.

Copyright Owner

South Carolina Entomological Society

Language

en

File Format

application/pdf