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Comparisons of deterrency and toxicity of selected secondary plant compounds to an oligophagous and a polyphagous acridid
Author(s) -
Cottee P. K.,
Bernays E. A.,
Mordue A. J.
Publication year - 1988
Publication title -
entomologia experimentalis et applicata
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 83
eISSN - 1570-7458
pISSN - 0013-8703
DOI - 10.1111/j.1570-7458.1988.tb01118.x
Subject(s) - schistocerca , biology , toxicity , hemolymph , orthoptera , pest analysis , acrididae , toxicology , botany , zoology , locust , chemistry , organic chemistry
A comparison was made of the relationship between deterrence and toxicity of eight secondary compounds to two acridids. The grass specialist Locusta migratoria was compared with the polyphagous Schistocerca gregaria. L. migratoria was deterred by all compounds presented at natural concentrations to which S. gregaria showed a variety of behavioral responses. Overall, L. migratoria was significantly more susceptible to toxic effects of the chemicals when injected into the hemolymph than was S. gregaria and was more sensitive behaviourally to them. There was a significant correlation in both species between deterrency and toxicity of injected compounds, but little evidence of a relationship between deterrency and oral toxicity.