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CONTACT TOXICITY OF 34 INSECTICIDES TO SECOND-STAGE NYMPHS OF LEPTOGLOSSUS CORCULUS (HEMIPTERA: COREIDAE)

Published online by Cambridge University Press:  31 May 2012

Gary L. DeBarr  and
John C. Nord
Gary L. DeBarr
Affiliation:
U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station, Athens, Georgia 30602
John C. Nord
Affiliation:
U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station, Athens, Georgia 30602
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Abstract

Second-stage nymphs of the leaffooted pine seedbug, Leptoglossus corculus (Say), were highly susceptible to most of 34 topically applied insecticides, twenty-six chemicals ad Ld50 values of less than 5 μg/g of body weight. Nine insecticides — aldicarb, aminocarb, azinphosmethyl, carbofuran, dicrotophos, FMC 45498 ((−)-(Cyano) (3-phenoxyphenyl)-methyl (+)-cis-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropane-1-carboxylate), monocrotophos, propoxur, and SD 43775 (Cyano(3-phenoxyphenyl)methyl-4-chloro-alpha-(1-methylethyl)benzeneacetate) — had LD90 values of less than 1 μg/g of body weight. There was good agreement between the relative toxicities of insecticides applied topically to the leaffooted pine seedbug in these laboratory tests and the effectiveness of several insecticides previously tested in the field.

Type
Articles
Information
The Canadian Entomologist , Volume 110 , Issue 9 , September 1978 , pp. 901 - 906
Copyright
Copyright © Entomological Society of Canada 1978

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