Insecticidal Toxicities of Glucosinolate·containing Extracts from Crambe Seeds

Date
1996-02-12
Authors
Tsao, Rong
Reuber, Mark
Johnson, Larry
Coats, Joel
Coats, Joel
Journal Title
Journal ISSN
Volume Title
Publisher
Source URI
Altmetrics
Authors
Coats, Joel
Person
Research Projects
Organizational Units
Entomology
Organizational Unit
Journal Issue
Series
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.

Description
<p>This article is from <em>Journal of Agricultural and Urban Entomology,</em> 1996, 13(2); 109-120. Posted with permission.</p>
Keywords
Natural product, glucosinolatc8, crambe, insecticidal activity, pest control
Citation
Collections