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Notes on Beetles as Predators of Eggs of Hylemya brassicae (Bouché) (Diptera: Anthomyiidae)1

  • George Wishart (a1), J. F. Doane (a1) and G. E. Maybee (a1)

Extract

Observations on predation of eggs of Hylemya brassicae (Bouché) were made from the Belleville laboratory from 1953 to 1955 as part of a general study of the biotic agents that act against the maggots that attack cruciferous crops. In biological control programs more attention has been given to parasites than to predators. Predation is more difficult to observe and to evaluate and, unlike parasitization, cannot be even roughly appraised by the collection and examination of hosts. As a group, predators are less specific in their food requirements and less regular in their habits than parasites and consequently do not lend themselves so readily to manipulation for biological control purposes. Predators used with success in biological control have had a high degree of specificity to their prey. Non-specific predators may, however, in the presence of large numbers of suitable hosts on which to feed, be important factors in reducing populations of noxious insects. Predation on eggs of H. brassicae is an example.

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References

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Balduf, W. V. 1935. The bionomics of entomophagous Coleoptera. Published by author.
Blatchley, W. S. 1910. The Coleoptera or beetles known to occur in Indiana. The Nature Publishing Company, Indianapolis.
Colhoun, E. H. 1953. Notes on the stages and biology of Baryodma ontarionis Casey (Coleoptera: Staphylinidae), a parasite of the cabbage maggot, Hylemya brassicae Bouché (Diptera: Anthomyiidae). Canadian Ent. 85: 18.
Gibson, A., and Treherne, R. C.. 1916. The cabbage root maggot and its control in Canada. Canada Dept. Agr. Bull. 12.
Gillette, C. P. 1888. Parasites on Danais archippus and Anthomyia raphani. Canadian Ent. 20: 133134.
Schoene, W. J. 1916. The cabbage maggot: its biology and control. New York Agr. Expt. Sta. Bull. 419.
Treherne, R. C. 1916. The cabbage maggot in British Columbia (Phorbia brassicae). The natural control by parasites and predacious insects. 46th Ann. Rept. Ent. Soc. Ontario, 1915, pp. 140145.

Notes on Beetles as Predators of Eggs of Hylemya brassicae (Bouché) (Diptera: Anthomyiidae)1

  • George Wishart (a1), J. F. Doane (a1) and G. E. Maybee (a1)

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