Hostname: page-component-76fb5796d-25wd4 Total loading time: 0 Render date: 2024-04-27T00:35:46.081Z Has data issue: false hasContentIssue false
  • English
  • Français

TOXICITY OF INSECTICIDES TO DOUGLAS-FIR TUSSOCK MOTH, ORGYIA PSEUDOTSUGATA (LEPIDOPTERA: LYMANTRIIDAE): I. CONTACT AND FEEDING TOXICITY12

Published online by Cambridge University Press:  31 May 2012

Jacqueline L. Robertson  and
Lucille M. Boelter
Jacqueline L. Robertson
Affiliation:
Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, Berkeley, California 94701
Lucille M. Boelter
Affiliation:
Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, Berkeley, California 94701
Get access Rights & Permissions [Opens in a new window]

Abstract

The toxicities of 14 insecticides to selected larval stages of the Douglas-fir tussock moth were determined with a laboratory spray chamber. The toxicities of 10 were also determined in feeding bioassays. Younger instars were, in general, more susceptible to the toxicants. Significant differences in population response from 1973 to 1977 precluded a rigid interpretation of relative toxicity values in relation to the standard for comparison, DDT. Spray volume, formulation, and the presence of rhodamine B dye significantly affected toxicities of two of the materials, carbaryl and trichlorfon. The degree of exposure of larvae to bioethanomethrin and carbaryl significantly affected mortality.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 10 , October 1979 , pp. 1145 - 1159
Copyright
Copyright © Entomological Society of Canada 1979

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Busvine, J. R. 1971. A critical review of techniques for testing insecticides. Commonwealth Institute of Entomology, Slough, England. 2nd ed., pp. 36–41.Google Scholar
Lyon, R. L., Richmond, C. E., Robertson, J. L., and Lucas, B. A.. 1972. Rearing diapause and diapause-free western spruce budworm (Choristoneura occidentalis) (Lepidoptera: Tortricidae) on an artificial diet. Can. Ent. 104: 417–426.CrossRefGoogle Scholar
Lyon, R. L. and Robertson, J. L.. 1971. Toxicity of stabilized and unstabilized pyrethrins applied to western spruce budworm. U.S. Forest Serv. Res. Note PSW-255.Google Scholar
Miskus, R. P. and Andrews, T. L.. 1972. Stabilization of thin films of pyrethrins and allethrin. J. Agric. Food Chem. 20: 113.Google Scholar
Rayner, A. C. 1956. Colorimetric estimation of dyed insecticide spray deposit using a paper sampling surface. Can. Ent. 88: 279Google Scholar
Robertson, J. L. 1978. Feeding tests of insecticides to western spruce budworm. Insecticide and Acaricide Tests 3: 145.Google Scholar
Robertson, J. L., Boelter, L. M., Russell, R. M., and Savin, N. E.. 1978. Variation in response to insecticides by Douglas-fir tussock moth, Orgyia pseudotsugata (Lepidoptera: Lymantriidae), populations. Can. Ent. 110: 325–328.CrossRefGoogle Scholar
Robertson, J. L. and Lyon, R. L.. 1973. Douglas-fir tussock moth: contact toxicity of twenty insecticides applied to the larvae. J. econ. Ent. 66: 1255–1257.Google Scholar
Robertson, J. L., Lyon, R. L., Andrews, T. L., Moellman, E. E., and Page, M.. 1979. Moellman spray chamber: versatile research tool for laboratory bioassays. U.S. For. Serv. Res. Note PSW-337. 6 pp., illus. Pacific Southwest For. Range Exp. Stn., Berkeley. Calif.Google Scholar
Russell, R. M., Robertson, J. L., and Savin, N. E.. 1977. POLO: A new computer program for probit analysis. Bull. ent. Soc. Am. 23: 209–213.Google Scholar
Savin, N. E., Robertson, J. L., and Russell, R. M.. 1977. A critical evaluation of bioassay in insecticide research: likelihood ratio tests of dose-mortality regression. Bull. ent. Soc. Am. 23: 257–266.Google Scholar
Stock, M. W. and Robertson, J. L.. Differential response of Douglas-fir tussock moth, Orgyia pseudotsugata (Lepidoptera: Lymantriidae), populations and sibling groups to acephate and carbaryl: toxicological and genetic analyses. Can. Ent. (in press).Google Scholar