Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-01T21:23:09.770Z Has data issue: false hasContentIssue false
  • English
  • Français

THE EFFECTS OF BENOMYL ON THE INCIDENCE OF MICROSPORIDIA AND THE DEVELOPMENTAL PERFORMANCE OF EASTERN SPRUCE BUDWORM (LEPIDOPTERA: TORTRICIDAE)

Published online by Cambridge University Press:  31 May 2012

G. T. Harvey  and
P. M. Gaudet
G. T. Harvey
Affiliation:
Great Lakes Forest Research Centre, Canadian Forestry Service, Sault Ste. Marie, Ontario
P. M. Gaudet
Affiliation:
Great Lakes Forest Research Centre, Canadian Forestry Service, Sault Ste. Marie, Ontario
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Benomyl or MBC phosphate incorporated into the meridic diet of eastern spruce budworm, Choristoneura fumiferana (Clem.), reduces the incidence of infection of adults by the microsporidian Nosema fumiferanae (Thom.). Some reduction in microsporidian levels is produced by 25 ppm benomyl; higher concentrations are more effective but even 250 ppm failed to reduce the incidence of microsporidia below 29% in a heavily infected stock. At benomyl concentrations of 75 ppm and above, budworm growth and fertility were reduced. The most notable effect of benomyl was the reduction of fertile matings and of percentage eclosion of eggs. Males were more sensitive to benomyl than females.

Résumé

En incorporant du bénomyl ou du phosphate MBC à la diète méridique de la Tordeuse des bourgeons de l’Épinette, Choristoneura fumiferana (Clem.) on réduit les cas d’infection des adultes par l’agent microsporidien Nosema fumiferanae (Thom.). Avec 25 ppm de bénomyl, on réduit quelque peu les niveaux de microsporidies; de plus fortes concentrations sont plus efficaces mais même avec 250 ppm, on n’a pu pas réduire les microsporidies au-dessous de 29% chez une colonie fortement infectée. Avec des concentrations de bénomyl à 75 ppm, la croissance et la fertilité de la Tordeuse furent diminuées. L’effet le plus remarquable du bénomyl fut la réduction des accouplements productifs et du pourcentage d’éclosion des oeufs. Les mâles furent plus vulnérables au bénomyl que les femelles.

Type
Articles
Information
The Canadian Entomologist , Volume 109 , Issue 7 , July 1977 , pp. 987 - 993
Copyright
Copyright © Entomological Society of Canada 1977

References

Borecka, H., Borecki, Z., and Millikan, D. F.. 1971. Control of apple crab, bitter rot and sawfly in Poland with the use of some newer fungicides. Pl. Dis. Reptr. 55: 828–831.Google Scholar
Engelhard, A. W. and Poe, S. L.. 1971. Combinations of fungicides and insecticides for control of disease, insects and mites on chrysanthemums. Proc. Fla St. hort. Soc. 84: 435–441.Google Scholar
Frahm, J. 1973. Behaviour and side effects of benomyl. Pflanzenkrankheiten 7: 431–446.Google Scholar
Harvey, G. T. 1957. The occurrence and nature of diapause-free development in the spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae). Can. J. Zool. 35: 549–572.CrossRefGoogle Scholar
Harvey, G. T. 1961. Second diapause in spruce budworm from eastern Canada. Can. Ent. 93: 594–602.CrossRefGoogle Scholar
Harvey, G. T. 1974. Nutritional studies of eastern spruce budworm (Lepidoptera: Tortricidae) I. Soluble sugars. Can. Ent. 106: 353–365.CrossRefGoogle Scholar
Hsiao, T. H. and Hsiao, C.. 1973. Benomyl: a novel drug for controlling a microsporidan disease of the alfalfa weevil. J. invert. Path. 22: 303–304.CrossRefGoogle Scholar
Irving, S. N. and Wyatt, I. J.. 1973. Effects of sublethal doses of pesticides on the oviposition behaviour of Encarsia formosa. Ann. appl. Biol. 75: 57–62.CrossRefGoogle ScholarPubMed
Kondo, E. S., Roy, D. N., and Jorgensen, E.. 1973. Salts of methyl-2-benzimidazole carbamate (MBC) and assessment of their potential in Dutch elm disease control. Can. J. For. Res. 3: 548–555.CrossRefGoogle Scholar
Lynch, R. E. and Lewis, L. C.. 1971. Reoccurrence of the microsporidian Perezia pyraustae in the European corn borer, Ostrinia nubilalis, reared on diet containing Fumidil B. J. invert. Path. 17: 243–246.Google Scholar
McMorran, A. 1965. A synthetic diet for the spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortriciade). Can. Ent. 97: 58–62.Google Scholar
Nakashima, M. J. and Croft, B. A.. 1974. Toxicity of benomyl to the life stages of Amblyseius fallacis. J. econ. Ent. 67: 675–677.CrossRefGoogle Scholar
Poe, S. L. and McFadden, S.. 1972. Effect of benomyl and surfactants on populations of the two spotted spíder mite on dwarf marigold. J. Ga ent. Soc. 7: 167–170.Google Scholar
Retnakaran, A. 1970. The male reproductive system of the spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae). I. Spermatogenesis. Ann. ent. Soc. Am. 63: 851–859.Google Scholar
Reyes, A. A. and Stevenson, A. B.. 1975. Toxicity of benomyl to the cabbage maggot, Hylemya brassicae (Diptera: Anthomyiidae) in greenhouse tests. Can. Ent. 107: 685–687.Google Scholar
Sanders., C. J. 1975. Factors affecting adult emergence and mating behavior of the eastern spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae). Can. Ent. 107: 967–977.CrossRefGoogle Scholar
Spadafora, R. R. and Lindquist, R. K.. 1972. Ovicidal action of benomyl on eggs of the two spotted spider mite. J. econ. Ent. 65: 1711–1720.Google Scholar
Stehr, G. 1954. A laboratory method for rearing the spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae). Can. Ent. 86: 423–428.Google Scholar
Thomas, H. A. and Bradley, E. L.. 1975. Feeding deterrents for the Pales weevil in a laboratory bioassay. J. econ. Ent. 68: 147–149.Google Scholar
Wilson, G. G. 1974. The use of Fumidil B to suppress the microsporidan Nosema fumiferanae in stock cultures of the spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae). Can. Ent. 106: 995–996.Google Scholar