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EFFECT OF SOIL APPLICATIONS OF CARBOFURAN ON EGG POPULATIONS OF THE NORTHERN CORN ROOTWORM (COLEOPTERA: CHRYSOMELIDAE)

Published online by Cambridge University Press:  31 May 2012

B. C. Smith
Affiliation:
Research Station, Agriculture Canada, Harrow, Ontario N0R 1G0

Extract

Control of nothern corn rootworm, Diabrotica longicornis (Say), resulting from soil applications of carbofuran in southwestern Ontario varied considerably (Smith 1980). However, Ball and Su (1979) showed in laboratory studies that topical applications with sublethal doses of carbofuran increased the longevity and fecundity of western corn rootworm, D. virgifera LeConte, females. This is a report of effects of soil applications of carbofuran on northern rootworm egg populations in corn grown without rotation. The work was done in conjunction, with studies to determine the economic importance of larval populations on clay soil at two locations in southwestern Ontario. Details of methods of applying carbofuran and sampling rootworm eggs were described (Smith 1980).

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1981

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References

Ball, H. J. and Su, P. P.. Effect of sublethal dosages of carbofuran and carbaryl on fecundity and longevity of the female western corn rootworm. J. econ. Ent. 72: 873876.CrossRefGoogle Scholar
Smith, B. C. 1980. Population changes of the northern corn rootworm (Coleoptera: Chrysomelidae) and corn yield losses in southwestern Ontario. Proc. ent. Soc, Ont. 110 (1979): 8591.Google Scholar
Tyler, B. M. J. and Ellis, C. R.. 1980. Ground beetles in three tillage plots in Ontario and observations on their importance as predators of the northern corn rootworm, Diabrotica longicornis (Coleoptera: Chrysomelidae). Proc. ent. Soc. Ont. 110 (1979): 6573.Google Scholar