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CUTWORMS (LEPIDOPTERA: NOCTUIDAE) OF TOBACCO IN NOVA SCOTIA: II. FALL RYE AND WINTER FALLOW EFFECTS ON A FIELD POPULATION1

Published online by Cambridge University Press:  31 May 2012

H. B. Specht
H. B. Specht
Affiliation:
Research Station, Canada Department of Agriculture, Kentville, Nova Scotia
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Abstract

Twice as many larvae of the dark-sided cutworm, Euxoa messoria Harr., were found in rye fall-seeded tobacco field plots than in winter-fallowed tobacco field plots. There were corresponding differences in numbers of injured tobacco plants. Cutworm aggregations were more prominent in the winter rye than in the winter fallowed area of the tobacco field with low populations of dark-sided cutworms.

Larvae of the variegated cutworm, Peridroma saucia Hbn., appeared 2 to 4 weeks later than dark-sided cutworm larvae and winter cultural methods had little effect on their numbers.

Type
Articles
Information
The Canadian Entomologist , Volume 106 , Issue 1 , January 1974 , pp. 73 - 77
Copyright
Copyright © Entomological Society of Canada 1974

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References

Cann, D. B., MacDougall, J. I., and Hilchey, J. D.. 1965. Soil survey of Kings Co., Nova Scotia. Nova Scotia Soil Surv. Rep. 15.Google Scholar
Cheng, H. H. 1971. Assessment of tobacco losses caused by the dark-sided cutworm Euxoa messoria (Lepidoptera: Noctuidae), Delhi, Ontario. Can. Ent. 103: 534–541.CrossRefGoogle Scholar
Cheng, H. H. 1973. Observations on the bionomics of the dark-sided cutworm, Euxoa messoria (Lepidoptera: Noctuidae), in Ontario. Can. Ent. 105: 311–322.CrossRefGoogle Scholar
Cook, W. C. 1934. Cutworms and armyworms. Minn. agric. Exp. Stn Cir. 48. 8 pp.Google Scholar
Gayed, S. K. 1972. Host range and persistence of Thielaviopsis basicola in tobacco soil. Can. J. Plant Sci. 52: 869–873.CrossRefGoogle Scholar
Geiger, R. 1957. The climate near the ground. Harvard University Press, Cambridge.Google Scholar
Harris, C. R. and Svec, H. J.. 1968 a. Toxicological studies on cutworms. I. Laboratory studies on the toxicity of insecticides to the dark-sided cutworm. J. econ. Ent. 61: 788–793.CrossRefGoogle Scholar
Harris, C. R. and Svec, H. J.. 1968 b. Toxicological studies on cutworms. IV. Laboratory investigations on the toxicity of insecticides to the variegated cutworm, with special reference to method of application on insecticidal activity. J. econ. Ent. 61: 970–973.CrossRefGoogle Scholar
Seamans, H. L. 1938. The pale western cutworm and its control. Dom. Can. Dep. Agric. Publ. 615. 10 pp.Google Scholar
Specht, H. B. 1972. Cutworms of tobacco in Nova Scotia. I. Species complex and infestation. Can. Ent. 104: 1855–1864.CrossRefGoogle Scholar
Tait, L. 1968. Agricultural process, pp. 92–117. In Tait, L., Tobacco in Canada. Ont. Flue-Cured Tobacco Growers' Marketing Board, Tillsonburg, Ont.Google Scholar