Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-26T17:43:53.512Z Has data issue: false hasContentIssue false
  • English
  • Français

The Toxicity of Malathion, Perthane, Maneb and Zineb to Trialeurodes vaporariorum (Westwood)

Published online by Cambridge University Press:  31 May 2012

R. D. McMullen
R. D. McMullen
Affiliation:
Research Station, Research Branch, Canada Department of Agriculture, Harrow, Ontario
Get access Rights & Permissions [Opens in a new window]

Abstract

In laboratory experiments wettable and emulsifiable malathion and Perthane were most toxic to adult T. vaporariorum and progressively less so to the larval stages in order of development. Eggs were not killed. Perthane was most toxic at low temperatures, malathion at high temperatures. Malathion was more toxic than Perthane and the emulsifiable formulations of both more toxic than the wettable formulations. Against first-instar larvae, at the LD50, level, 70% maneb and 50% Perthane wettable powders were equally toxic but 65% zineb wettable powder was less toxic. Against adults, 70% maneb and 65% zineb wettable powders were one-half and one-third as toxic as 50% Perthane wettable powder at the LD50, level. Tests of spray mixtures against larvae with either 25% malathion or 50% Perthane wettable powders added to either 70% maneb or 65% zineb wettable powders showed neither synergistic nor antagonistic effects.

Type
Articles
Information
The Canadian Entomologist , Volume 96 , Issue 3 , March 1964 , pp. 541 - 549
Copyright
Copyright © Entomological Society of Canada 1964

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

Boyce, H. R. 1962. Insecticidal activity of maneb formulations against the greenhouse whitefly, Trialeurodes vaporariorum (Westw.) (Hemiptera: Aleyrodidae). Proc. ent. Soc. Ont. 92 (1961): 197–200.Google Scholar
Finney, D. J. 1952. Probit analysis, a statistical treatment of the sigmoid response curve. 2nd ed. Cambridge.Google Scholar
McCauley, W. E. 1939. Tandem doses of calcium cyanamide for controlling insects on plants. J. econ. Ent. 24: 729–730.Google Scholar
McMullen, R. D. 1959. Insecticidal action of ethylene bisdithiocarbamates. Nature, Lond. 184: 1338.Google Scholar
Pradhan, S., and Rangarao, P. V.. 1957. Effect of post-treatment temperature on insect resistance to insecticidal sprays. Bull. ent. Res. 48: 261–274.CrossRefGoogle Scholar
Pruthi, H. D. 1956. Critical studies on insecticides. II. Toxicity of malathion under different conditions of temperature and humidity. Indian J. Ent. 18: 408–426.Google Scholar
Smith, F. F., and Goodhue, L. D.. 1945. DDT aerosols to control onion thrips and other pests in greenhouses. J. econ. Ent. 38: 173–179.CrossRefGoogle Scholar
Speyer, E. R., and Parr, W. J.. 1947. III. Animal pests. 2. Whitefly, (Trialeurodes vaporariorum Westw.). 32nd Annu. Rep. Exp. Res. Sta. Turner's Hill, Cheshunt, Herts, 1946: 48–50.Google Scholar