Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-27T20:02:43.407Z Has data issue: false hasContentIssue false

Preliminary spray trials of a nuclear polyhedrosis virus as a control agent for the brown-tail moth, Euproctis chrysorrhoea (L.) (Lepidoptera: Lymantriidae)

Published online by Cambridge University Press:  10 July 2009

P. M. Kelly
Affiliation:
Department of Zoology, University of Oxford, Oxford, UK
P. H. Sterling
Affiliation:
Department of Zoology, University of Oxford, Oxford, UK
M. R. Speight
Affiliation:
Department of Zoology, University of Oxford, Oxford, UK
P. F. Entwistle
Affiliation:
NERC Institute of Virology, Mansfield Road, Oxford, UK

Abstract

A spray trial of a nuclear polyhedrosis virus (NPV) as an insecticide for Euproctis chrysorrhoea (L.) is described. The trial was carried out indoors in the spring on third-instar larvae emerging from overwintering nests onto small potted hawthorn trees (Crataegus sp.); the equipment used was the Turbair Fox Ultra Low Volume Sprayer. Dosages applied ranged from equivalents of 1 × 1011 to 1 × 1013 polyhedral inclusion bodies (PIB) per hectare. Infection was first detected in samples of live larvae after ten days and indicated rates of infection consistently lower than the final mortality attained. Larvae began to die of NPV infections 11 days after spraying, and mortality due to the virus ceased after ca 20 days; most larvae died in the fourth instar. Over the range of virus doses from 1 × 1011 to 5 ×10 12 PIB/ha mortality levels rose with dose, to a maximum of over 90%. Increasing the dosage to 1 × 1013 PIB/ha elicited no further increase in mortality. This preliminary trial suggests that the virus has considerable potential as a control agent, and field trials are, therefore, in progress.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1988

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

Blair, C. P. (1979). The brown-tail moth, its caterpillar and their rash.—Clin. & Exp. Dermatol. 4, 215222.CrossRefGoogle Scholar
Cunningham, J. C. & Howse, G. M. (1984). Viruses: application and assessment.—pp. 248–259 in Kelleher, J. S. & Hulme, M. A. (Eds). Biological control programmes against insects and weeds in Canada 1969–1980.—410 pp. Farnham Royal, Slough, UK. Commonw. Agric. Bur.Google Scholar
Davidson, R. H. & Lyon, W. F. (1979). Insect pests of farm, garden, and orchard.—7th edn, 596 pp. New York, Wiley.Google Scholar
Entwistle, P. F. & Evans, H. F. (1985). Viral control.—pp. 347–412 in Kerkut, G. A. & Gilbert, L. I. (Eds). Comprehensive insect physiology, biochemistry, and pharmacology. Vol. 12. Insect control.—849 pp. Oxford, Pergamon Press.Google Scholar
Finney, D. J. (1971). Probit analysis.—3rd edn, 333 pp. Cambridge, Univ. Press.Google Scholar
Ignoffo, C. M., Hostetter, D. L., Biever, K. D., Garcia, C., Thomas, G. D., Dickerson, W. A. & Pinnell, R. (1978). Evaluation of an entomopathogenic bacterium, fungus, and virus for control of Heliothis zea on soybeans.—J. econ. Ent. 71, 165168.CrossRefGoogle Scholar
Jaques, R. P. (1977). Stability of entomopathogenic virusesMisc. Publ. Ent. Soc. Am. 10, 99116.Google Scholar
Kelly, D. C. (1985). The structure and physical characteristics of baculoviruses.—pp. 469–488 in Maramorosch, K. & Sherman, K. E. (Eds). Viral insecticides for biological control.—809 pp. London, Academic Press.Google Scholar
Lewis, F. B. (1981). Control of the gypsy moth by a baculovirus.—pp. 363–377 in Burges, H. D. (Ed.). Microbial control of pests and plant diseases 1970–1980.—949 pp. London, Academic Press.Google Scholar
Mazzone, H. M. (1985). Pathology associated with baculovirus infection.—pp. 81–120 in Maramorosch, K. & Sherman, K. E. (Eds). Viral insecticides for biological control.—809 pp. London, Academic Press.Google Scholar
Podgwaite, J. D., Rush, P., Hall, D. & Walton, G. S. (1986). Field evaluation of a nucleopolyhedrosis virus for control of redheaded pine sawfly (Hymenoptera: Diprionidae).—J. econ. Ent. 79, 16481652.CrossRefGoogle Scholar
Sidor, C. (1974). Microorganisms - enemies of the common European brown tail - I. Viruses provoking nuclear polyhedrosis virus disease [in Serbo Croat].—Zast. Bilja 25, 193204.Google Scholar
Sliwa, E. & Swiezynska, H. (1978). Development of the outbreak of Euproctis chrysorrhoea in oak stands along the R. Oder in 1974–1977.—Sylvan 122, 4550.Google Scholar
Stelzer, M., Neisess, J., Cunningham, J. C. & McPhee, J. R. (1977). Field evaluation of baculovirus stocks against douglas-fir tussock moth in British Columbia.—J. econ. Ent. 70, 243246.CrossRefGoogle Scholar
Sterling, P. H. (1983). Brown-tail: the invisible itch.—Antenna 7, 110113.Google Scholar
Sterling, P. H. (1985). The brown-tail moth.—2 pp. Edinburgh, DoE Arboricultural Advis. & Inf. Serv., For. Commn (Arboriculture Research Note 57/85/ENT).Google Scholar