Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-26T01:13:35.349Z Has data issue: false hasContentIssue false

Insect viruses as control agents

Published online by Cambridge University Press:  06 April 2009

C. C. Payne
Affiliation:
Glasshouse Crops Research Institute, Worthing Road, Littlehampton, West Sussex BN16 3PU

Summary

Virus diseases have been reported from more than 800 species of insects and mites. Isolates of the baculovirus and cytoplasmic polyhedrosis virus groups have biological properties which should lead to their successful use as microbial control agents in integrated pest management programmes. These viruses infect the larval stages of many lepidopterous and hymenopterous pests, producing a chronic or lethal infection and the release of large quantities of relatively stable infective inclusion bodies (IBs). The IBs serve as the means by which the viruses are transmitted and persist outside the host. Younger larvae are more susceptible to infection than older stages, and this difference influences the timing of application and doses of virus needed for practical pest control. The high degree of host specificity of many isolates reduces their potential ecological hazard but also limits their use, particularly on crops where a complex of pests is established. Environmental persistence is also a limiting factor as virus is rapidly inactivated by ultra-violet light even when contained within IBs. The viruses persist for longer periods when transmitted within the host population, a feature of virus infections restricted to the insect gut.

The practical use of insect viruses in horticulture and agriculture does not utilize their full epizootic potential, but takes advantage of their high pathogenicity and specificity. The baculoviruses of codling moth, and Heliothis spp. provide satisfactory pest control, but for their most cost-effective use it is important to determine the minimum dosage rates of virus required. It is encouraging that studies of the virus control of Pieris spp. have suggested that control achieved by the insecticidal use of a virus can be closely predicted from information on dosage-mortality responses, larval feeding rates and virus persistence. The stability of forest and grassland, and their high economic thresholds makes them ideal candidates for longer-term control. Viruses of the coconut rhinoceros beetle and european spruce sawfly provide examples of classical biological control where the viruses persist for long periods, are efficiently transmitted and act as natural regulators of their hosts. Virus control of pasture, and some forest, pests may be possible by manipulating enzootic viruses without the need for direct control measures. More frequently insecticidal applications are needed, providing control of limited duration which requires periodic ‘topping-up’.

Few viruses are commercially-available; their selectivity and often small potential market, may limit industrial interest. However, improvements in virus production, formulation and a better understanding of virus epizootiology should lead to an increasing role for this group of insect pathogens in biological control.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1982

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

Akutsu, K. (1971). Control of the common cabbageworm, Pieris rapae crucivora Boisduval by a granulosis virus. Japanese Journal of Applied Entomology and Zoology. 15, 5662. (In Japanese, English summary.)CrossRefGoogle Scholar
Allaway, G. P. (1982). The infectivity of some occluded insect viruses. Ph.D. thesis, University of London.Google Scholar
Allen, G. E. & Ignoffo, C. M. (1969). The nucleopolyhedrosis virus of Heliothis: quantitative in vivo estimates of virulence. Journal of Invertebrate Pathology. 13, 378–80.CrossRefGoogle Scholar
Allen, G. E., Ignoffo, C. M. & Jaques, R. P. (1978). Microbial Control of Insect Pests: Future strategies in Pest Management Systems. Selected papers from NSF-USDA-University of Florida Workshop.Google Scholar
Aleshina, O. A. (1980). Study of entomopathogenic viruses in the USSR. In Characterization, Production and Utilization of Entomopathogenic Viruses (ed. Ignoffo, C. M., Martignoni, M. E. and Vaughn, J. L.), pp. 116. Proceedings of the 2nd conference of the US/USSR joint working group on the production of substances by microbiological means. Washington DC: American Society for Microbiology.Google Scholar
Anderson, R. M. & May, R. M. (1981). The population dynamics of microparasites and their invertebrate hosts. Philosophical Transactions of the Royal Society of London B. 291, 451524.Google Scholar
Andrews, G. L. (1975). Bait formulations for disseminating viruses. In Baculoviruses for Insect Pest Control: Safety Considerations (ed. Summers, M., Engler, R., Falcon, L. A. and Vail, P.), pp. 129130. Washington DC: American Society for Microbiology.Google Scholar
Anonymous (1978). Research on the Control of the Coconut Palm Rhinoceros Beetle, Phase II. Fiji, Tonga, Western Samoa. Technical Report AG:DP/RAS/71/291. Rome: United Nations Development Programme, Food and Agriculture Organization of the United Nations.Google Scholar
Aruga, H. (1971). Cytoplasmic polyhedrosis of the silkworm: Historical, economical and epizootiological aspects. In The Cytoplasmic–Polyhedrosis Virus of the Silkworm (ed. Aruga, H. and Tanada, Y.), pp. 321. Tokyo: University of Tokyo Press.Google Scholar
Aruga, H. & Watanabe, H. (1964). Resistance to per os infection with cytoplasmic–polyhedrosis virus in the silkworm, Bombyx mori (Linnaeus). Journal of Insect Pathology. 6, 387–94.Google Scholar
Bailey, C. H. (1977). Field and laboratory observations on a cytoplasmic polyhedrosis virus of blackflies (Diptera: Simuliidae). Journal of Invertebrate Pathology. 29, 6973.CrossRefGoogle Scholar
Balch, R. E. & Bird, F. T. (1944). A disease of the European spruce sawfly, Gilpinia hercyniae (Htg.), and its place in natural control. Scientific Agriculture. 25, 6580.Google Scholar
Barker, R. E. (1968). The availability of solar radiation below 290 nm and its importance in photomodification of polymers. Photochemistry and Photobiology. 7, 275–95.CrossRefGoogle Scholar
Bedford, G. O. (1981). Control of the rhinoceros beetle by baculovirus. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 409426. London and New York: Academic Press.Google Scholar
Bell, M. R. & Kanavel, R. F. (1976). Effect of dose of cytoplasmic polyhedrosis virus on infection, mortality, development rate and larval and pupal weights of the pink bollworm. Journal of Invertebrate Pathology. 28, 121–6.CrossRefGoogle Scholar
Biliotti, E., Grison, P. & Martouret, D. (1956). L'utilisation d'une maladie a virus comme methode de lutte biologique contre Pieris brassicae L. Entomophaga. 1, 3544.CrossRefGoogle Scholar
Bird, F. T. (1953). The use of a virus disease in the biological control of the European pine sawfly, Neodiprion sertifer (Geoffr.). Canadian Entomologist. 85, 437–46.CrossRefGoogle Scholar
Bird, F. T. (1955). Virus diseases of sawflies. Canadian Entomologist. 87, 124–7.CrossRefGoogle Scholar
Bird, F. T. (1969). Infection and mortality of spruce budworm Choristoneura fumiferana, and forest tent caterpillar, Malacosoma disstria caused by nuclear and cytoplasmic polyhedrosis viruses. Canadian Entomologist. 101, 1269–85.CrossRefGoogle Scholar
Bird, F. T. & Elgee, D. E. (1957). A virus disease and introduced parasites as factors controlling the European spruce sawfly, Diprion hercyniae (Htg.) in central New Brunswick Canadian Entomologist 89, 371–8.CrossRefGoogle Scholar
Bode, W. M. (1970). Laspeyresiapomonella (Lepidoptera: Olethreutidae): effects of an introduced granulosis on a field population and laboratory rearing on artificial diets. Ph.D. thesis, The Ohio State University.Google Scholar
Boucias, D. G. & Nordin, G. L. (1977). Interinstar susceptibility of the fall webworm, Hyphantria cunea, to its nucleopolyhedrosis and granulosis viruses. Journal of Invertebrate Pathology. 30, 6875.CrossRefGoogle Scholar
Boucias, D. G. & Nordin, G. L. (1978). Susceptibility of Hyphantria cunea infected with the Diacrisia granulosis virus to its homologous baculoviruses. Journal of Invertebrate Pathology. 32, 341–7.CrossRefGoogle Scholar
Brand, R. J. & Pinnock, D. E. (1981). Application of biostatistical modelling to forecasting the results of microbial control trials. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 667693. London and New York: Academic Press.Google Scholar
Briese, D. T. (1981). Resistance of insect species to microbial pathogens. In Pathogenesis of Invertebrate Microbial Diseases (ed. Davidson, E. A.), pp. 511545. New Jersey: Allanheld, Osmun and Co.Google Scholar
Brookes, M. H., Stark, R. W. & Campbell, R. W. (1978). The Douglas-fir Tussock Moth: a Synthesis. Forest Service Science and Education Agency, Technical Bulletin 1585. Washington DC: U.S. Department of Agriculture.Google Scholar
Bull, D. L. (1978). Formulation of Microbial insecticides: Microencapsulation and adjuvants. Miscellaneous Publications of the Entomological Society of America 10 (5), 1120.Google Scholar
Burges, H. D. (1981). Strategy for the microbial control of pests in 1980 and beyond. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 797836. London and New York: Academic Press.Google Scholar
Carner, G. R., Hudson, J. S. & Barnett, O. W. (1979). The infectivity of a nuclear polyhidrosis virus of the velvetbean caterpillar for eight noctuid hosts. Journal of Invertebrate Pathology. 33, 211–16.CrossRefGoogle Scholar
Carter, J. B. (1978). Field Trials with Tipula iridescent virus against Tipula spp. larvae in grassland. Entomophaga. 23, 169–74.CrossRefGoogle Scholar
Clark, T. B., Chapman, H. C. & Fukuda, T. (1969). Nuclear-polyhedrosis and cytoplasmic-polyhedrosis virus infection in Louisiana mosquitoes. Journal of Invertebrate Pathology. 14, 284–6.CrossRefGoogle ScholarPubMed
Clark, T. B. & Fukuda, T. (1971). Field and laboratory observations of two viral diseases in Aedes sollicitans (Walker) in southwestern Louisiana. Mosquito News. 31, 193–9.Google Scholar
Crook, N. E. (1981). A comparison of the granulosis viruses from Pieris brassicae and Pieris rapae. Virology. 115, 173–81.CrossRefGoogle ScholarPubMed
Cunningham, J. C. & Entwistle, P. F. (1981). Control of Sawflies by Baculovirus. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 379407. London and New York: Academic Press.Google Scholar
David, W. A. L. (1978). The granulosis virus of Pieris brassicae (L) and its relationship with its host. Advances in Virus Research. 22, 111–61.CrossRefGoogle ScholarPubMed
De Bach, P. (1974). Biological Control of Natural Enemies. London: Cambridge University Press.Google Scholar
Entwistle, P. F. (1974). New perspectives in control with pathogenic viruses. Land (Oxford) 1, 84–8.Google Scholar
Entwistle, P. F. (1978). Microbial Control of Insects and Other Pests. In Crop Protection. British Association for the Advancement of Science. Annual Meeting Bath University 1978. pp. 7296. University of Bath UK.Google Scholar
Entwistle, P. F. & Adams, P. H. W. (1977). Prolonged retention of infectivity in the nuclear polyhedrosis virus of Gilpinia hercyniae (Hymenoptera: Diprionidae) on foliage of spruce species. Journal of Invertebrate Pathology. 29, 392–4.CrossRefGoogle Scholar
Entwistle, P. F., Adams, P. H. W. & Evans, H. F. (1977). Epizootiology of a nuclear-polyhedrosis virus in European spruce sawfly, Gilpinia hercyniae: Birds as dispersal agents of the virus during winter. Journal of Invertebrate Pathology. 30, 1519.CrossRefGoogle Scholar
Entwistle, P. F., Adams, P. H. W. & Evans, H. F. (1978). Epizootiology of a nuclear polyhedrosis virus in European spruce sawfly (Gilpinia hercyniae): the rate of passage of infective virus through the gut of birds during cage tests. Journal of Invertebrate Pathology. 31, 307–12.CrossRefGoogle ScholarPubMed
Evans, H. F. (1981). Quantitative assessment of the relationships between dosage and response of the nuclear polyhedrosis virus of Mamestra brassicae. Journal of Invertebrate Pathology. 37, 101–9.CrossRefGoogle Scholar
Evans, H. F. & Harrap, K. A. (1982). Persistence of Insect Viruses. In Virus Persistence (ed. Mahy, B. W. J., Minson, A. C. and Darby, G.). 33rd Symposium of the Society for General Microbiology. London: Cambridge University Press. (In the Press.)Google Scholar
Falcon, L. A. (1976). Problems associated with the use of arthropod viruses in pest control. Annual Review of Entomology. 21, 305–24.CrossRefGoogle Scholar
Falcon, L. A. (1978). Economical and biological importance of baculoviruses as alternatives to chemical pesticides. In Safety Aspects of Baculoviruses as Biological Insecticides (ed. Miltenburger, H. G.), pp. 2746. Bonn: Bundesministerium fur Forschung und Technologie.Google Scholar
Falcon, L. A., Kane, W. R. & Bethell, R. S. (1968). Preliminary evaluation of a granulosis virus for control of codling moth. Journal of Economic Entomology. 61, 1208–13.CrossRefGoogle Scholar
Faulkner, P. (1981). Baculovirus. In Pathogenesis of Invertebrate Microbial Diseases (ed. Davidson, E. A.), pp. 337. New Jersey: Allanheld, Osmun & Co.Google Scholar
Federici, B. A. (1974). Viral pathogens of mosquitoes and their potential use in mosquito control. In Le Contrôle des Moustiques/Mosquito Control (ed. Aubin, A., Bourassa, J. P., Belloncik, S., Pellissier, M. and Lacoursiere, E.), pp. 93135. Quebec: Les presses de l'Université du Québec.Google Scholar
Federici, B. A. (1977). Virus pathogens of Culicidae (mosquitos). In Pathogens of Medically Important Arthropods (ed. Roberts, D. W. and Strand, M. A.), pp. 2536. Geneva: World Health Organization.Google Scholar
Federici, B. A. (1980). Disease prevalence and epizootics in insect populations. In Characterization, Production and Utilization of Entomopathogenic Viruses (ed. Ignoffo, C. M., Martignoni, M. E. and Vaughn, J. L.), pp. 1730. Proceedings of the 2nd conference of the US/USSR Joint working group on the production of substances by microbiological means. Washington DC: American society for microbiology.Google Scholar
Fenner, F., McAuslan, B. R., Mims, C. A., Sambrook, J. & White, D. O. (1974). The Biology of Animal Viruses. New York and London: Academic Press.Google Scholar
Fenner, F. & Ratcliffe, F. N. (1965). Myxomatosis. London and New York: Cambridge University Press.Google Scholar
Gard, I. E. & Falcon, L. A. (1978). Autodissemination of entomopathogens: Virus. In Microbial Control of Insect Pests: Future Strategies in Pest Management Systems (ed. Allen, G. E., Ignoffo, C. M. and Jaques, R. P.), pp. 4654. Selected papers from NSF-USDA-University of Florida Workshop.Google Scholar
Granados, R. R. (1978). Biology of cytoplasmic polyhidrosis viruses and entomopoxviruses. In Viral Pesticides: Present Knowledge and Potential Effects on Public and Environmental Health (ed. Summers, M. D. and Kawanishi, C. Y.), pp. 89102. North Carolina: U.S. Environmental Protection Agency.Google Scholar
Granados, R. R. (1980). Infectivity and mode of action of baculoviruses. Biotechnology and Bioengineering. 22, 1377–405.CrossRefGoogle Scholar
Granados, R. R. & Lawler, K. A. (1981). In vivo pathway of Autographa californica Baculovirus invasion and infection. Virology. 108, 297308.CrossRefGoogle ScholarPubMed
Harper, J. D. (1978). Introduction and colonization of entomopathogens. In Microbial Control of Insect Pests, Future strategies in Pest Management Systems (ed. Allen, G. E., Ignoffo, C. M. and Jaques, R. P.), pp. 313. Selected Papers from NSF-USDA-University of Florida Workshop.Google Scholar
Harrap, K. A. & Payne, C. C. (1979). The structural properties and identification of insectviruses. Advances in Virus Research. 25, 273355.CrossRefGoogle Scholar
Harrap, K. A., Payne, C. C. & Robertson, J. S. (1977). The properties of three baculoviruses from closely related hosts. Virology 79, 1431.CrossRefGoogle ScholarPubMed
Harrap, K. A. & Robertson, J. S. (1968). A possible infection pathway in the development of a nuclear polyhedrosis virus. Journal of General Virology. 3, 221–5.CrossRefGoogle Scholar
Harrap, K. A. & Tinsley, T. W. (1978). The international scope of invertebrate virus research in controlling pests. In Viral Pesticides: Present Knowledge and Potential Effects on Public and Environmental Health (ed. Summers, M. D. and Kawanishi, C. Y.), pp. 2742. North Carolina: U.S. Environmental Protection Agency.Google Scholar
Hostetter, D. L., Pinnell, R. E., Greer, P. A. & Ignoffo, C. M. (1973). A granulosis virus of Pieris rapae as a microbial control agent on cabbage in Missouri. Environmental Entomology. 2, 1109–12.CrossRefGoogle Scholar
Huber, J. (1978). About the host spectrum of the codling moth granulosis virus. In Safety Aspects of Baculoviruses as Biological Insecticides (ed. Miltenburger, H. G.), pp. 7580. Bonn: Bundesministerium für Forschung und Technologie.Google Scholar
Huber, J. & Dickler, E. (1977). Codling moth granulosis virus: its efficiency in the field in comparison with organophosphorus insecticides. Journal of Economic Entomology. 70, 557–61.CrossRefGoogle Scholar
Huger, A. M. (1966). A virus disease of the Indian rhinoceros beetle, Oryctes rhinoceros (L.) caused by a new type of insect virus. Rhabdionvirus oryctes gen. n., sp. n. Journal of Invertebrate Pathology 8, 3851.CrossRefGoogle Scholar
Huger, A. M. (1973). Grundlager zur biologischen Bekämpfung des Indischen Nashornkäfers, Oryctes rhinoceros (L.) mit Rhabdionvirus oryctes. Histopathologic der Virose bei Käfern. Zeitschrift für Angewandte Entomologie. 72, 309–19.CrossRefGoogle Scholar
Hukuhara, T. (1962). Generation-to-generation transmission of the cytoplasmic polyhedrosis virus of the silkworm, Bombyx mori (Linnaeus). Journal of Insect pathology. 4, 132–5.Google Scholar
Hussey, N. W. (1980 a). Integrated control of glasshouse pests and diseases: its history and development. Proceedings of the International Symposium on Integrated Control in Agriculture and Forestry, pp. 177–185. IOBC/WPRS.Google Scholar
Hussey, N. W. (1980 b). Crop protection: a challenge in applied biology. Annals of AppliedBiology. 96, 261–74.Google Scholar
Hussey, N. W. & Tinsley, T. W. (1981). Impressions of Insect Pathology in the People's Republic of China. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 785–95. London and New York: Academic Press.Google Scholar
Ignoffo, C. M. (1968). Specificity of insect viruses. Bulletin of the Entomological Society of America. 14, 265–76.CrossRefGoogle Scholar
Ignoffo, C. M. (1973). Development of a Viral Insecticide: Concept to commercialization. Experimental Parasitology. 33, 380406.CrossRefGoogle ScholarPubMed
Ignoffo, C. M. (1975). Evaluation of In vivo specificity of Insect Viruses. In Baculoviruses for Insect Pest Control: Safety Considerations (ed. Summers, M., Engler, R., Falcon, L. A. and Vail, P.), pp. 5262. Washington, DC: American Society for Microbiology.Google Scholar
Ignoffo, C. M. (1978). Strategies to increase the use of entomopathogens. Journal of Invertebrate Pathology. 31, 13.CrossRefGoogle Scholar
Ignoffo, C. M. & Allen, G. E. (1972). Selection for resistance to a nucleo-polyhedrosis virus in laboratory populations of the cotton bollworm, Heliothis zea. Journal of Invertebrate Pathology. 20, 187–92.CrossRefGoogle Scholar
Ignoffo, C. M. & Batzee, O. F. (1971). Microencapsulation and ultra violet protectants to increase sunlight stability of an insect virus. Journal of Economic Entomology. 64, 850–3.CrossRefGoogle Scholar
Ignoffo, C. M. & Couch, T. L. (1981). The nucleopolyhedrosis virus of Heliothis species as a microbial insecticide. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 329362. London and New York: Academic Press.Google Scholar
Ignoffo, C. M. & Garcia, C. (1978). UV-photoinactivation of cells and spores of Bacillus thuringiensis and effects of peroxidase on inactivation. Environmental Entomology. 7, 270–2.CrossRefGoogle Scholar
Ignoffo, C. M., Hostetter, D. L., Sikorowski, P. P., Sutter, G. & Brooks, W. M. (1977). Inactivation of representative species of entomopathogenic viruses, a bacterium, fungus and protozoan by an ultraviolet light source. Environmental Entomology. 6, 411–15.CrossRefGoogle Scholar
Ignoffo, C. M., Hostetter, D. L. & Smith, D. B. (1976). Gustatory stimulant, sunlight protectant, evaporation retardant: three characteristics of a microbial insecticidal adjuvant. Journal of Economic Entomology. 69, 207–10.CrossRefGoogle Scholar
Jaenson, T. G. T. (1978). Virus-like rods associated with salivary gland hyperplasia in tsetse Glossina pallidipes. Transactions of the Royal Society of Tropical Medicine and Hygiene. 72, 234–8.CrossRefGoogle ScholarPubMed
Jaques, R. P. (1967). The persistence of a nuclear-polyhedrosis virus in the habitat of the host insect, Trichoplusia ni. I. Polyhedra deposited on foliage. Canadian Entomologist 99, 785–94.CrossRefGoogle Scholar
Jaques, R. P. (1971 a). Tests on protectants for foliar deposits of a polyhedrosis virus. Journal of Invertebrate Pathology 17, 916.CrossRefGoogle Scholar
Jaques, R. P. (1971 b). Control of cabbage insects by viruses. Proceedings of the Entomological Society of Ontario. 101, 2834.Google Scholar
Jaques, R. P. (1972). The inactivation of foliar deposits of viruses of Trichoplusia ni and Pieris rapae and tests on protectant activities. Canadian Entomologist. 104, 1985–94.CrossRefGoogle Scholar
Jaques, R. P. (1973). Tests on microbial and chemical insecticides for control of Trichoplusia ni (Lepidoptera: Noctuidae) and Pieris rapae (Lepidoptera: Pieridae) on cabbage. Canadian Entomologist. 105, 21–7.CrossRefGoogle Scholar
Jaques, R. P. (1974 a). Occurrence and accumulation of viruses of Trichoplusia ni in treated field plots. Journal of Invertebrate Pathology 23, 140–52.CrossRefGoogle ScholarPubMed
Jaques, R. P. (1974 b). Occurrence and accumulation of the granulosis virus of Pieris rapae in treated field plots. Journal of Invertebrate Pathology 23, 351–9.CrossRefGoogle ScholarPubMed
Jaques, R. P. (1975). Persistence, accumulation and denaturation of nuclear polyhedrosis and granulosis viruses. In Baculoviruses for Insect Pest Control: Safety Considerations (ed. Summers, M., Engler, R., Falcon, L. A. and Vail, P.), pp. 90101. Washington, DC: American Society for Microbiology.Google Scholar
Jaques, R. P. (1977). Stability of entomopathogenic viruses. Miscellaneous publications of the Entomological Society of America. 10 (3), 99116.Google Scholar
Jaques, R. P., MacLellan, C. R., Sanford, K. H., Proverbs, M. D. & Hagley, E. A. C. (1977). Preliminary orchard tests on control of codling moth larvae by a granulosis virus. Canadian Entomologist. 109, 1079–81.CrossRefGoogle Scholar
Kalmakoff, J. & Crawford, A. M. (1982). Enzootic virus control of Wiseana spp. in the pasture environment. In Microbial Insecticides (ed. Kurstak, E.), New York: Marcel Dekker. (In the Press.)Google Scholar
Kalmakoff, J. & Miles, J. A. R. (1980). Ecological approaches to the use of microbial pathogens in insect control. Bioscience. 30, 344–7.CrossRefGoogle Scholar
Katagiri, K. (1981). Pest control by cytoplasmic polyhidrosis virus. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 433440. London and New York: Academic Press.Google Scholar
Keller, S. (1973). Mikrobiologische Bekämpfung des Apfelwicklers Laspeyresia pomonella (L) (= Carpocapsa pomonella) mit spezifischem Granulosis virus. Zeitschrift für Angewandte Entomologie. 73, 137–81.CrossRefGoogle Scholar
Kelsey, J. M. (1957). Virus sprays for control of Pieris rapae (L). New Zealand Journal of Science and Technology 38, 644–8.Google Scholar
Lautenschlager, R. A. & Podgwaite, J. D. (1979). Passage of nucleopolyhedrosis virus by avian and mammalian predators of the gypsymoth, Lymantria dispar. Environmental Entomology. 8, 210–14.CrossRefGoogle Scholar
Lebedinets, N. N. & Zelenko, A. P. (1975). The infectivity of Aedes aegypti L. densonucleosis virus for the larvae of other species of culicidae. Voprosy Virusology. 2, 192–6. (In Russian, English summary.)Google Scholar
Lewis, F. B. (1975). Dosage effects on target insect populations (short- and long-term). In Baculoviruses for Insect Pest Control: Safety Considerations (ed. Summers, M., Engler, R., Falcon, L. A. and Vail, P.), pp. 143144. Washington, DC: American Society for Microbiology.Google Scholar
Lewis, F. B. (1981). Control of the gypsy moth by a Baculovirus. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 363377. London and New York: Academic Press.Google Scholar
Longworth, J. F. & Scotti, P. D. (1978). Identification ofnonoccluded viruses of invertebrates. In Viral Pesticides: Present Knowledge and Potential Effects on Public and Environmental Health (ed. Summers, M. D. and Kawanishi, C. Y.), pp. 7588. North Carolina: U.S. Environmental Protection Agency.Google Scholar
McKinley, D. J., Brown, D. A., Payne, C. C. & Harrap, K. A. (1981). Cross-infectivity andactivation studies with four baculoviruses. Entomophaga. 26, 7990.CrossRefGoogle Scholar
McLeod, P. J., Yearian, W. C. & Young, S. Y. Ill (1977). Inactivation of Baculovirus heliothis by ultraviolet irradiation, dew, and temperature. Journal of Invertebrate Pathology. 30, 237–41.CrossRefGoogle Scholar
Magnoler, A. (1974). Bioassay of a nucleopolyhedrosis virus of the gypsy moth, Porthetria dispar. Journal of Invertebrate Pathology. 23, 190–6.CrossRefGoogle ScholarPubMed
Magnoler, A. (1975). Bioassay of nucleopolyhedrosis virus against larval instars of Malacosoma neustria. Journal of Invertebrate Pathology 25, 343–8.CrossRefGoogle Scholar
Martignoni, M. E. & Iwai, P. J. (1978). Activity standardization of technical preparations of douglas-fir tussock moth baculovirus. Journal of Economic Entomology. 71, 473–6.CrossRefGoogle Scholar
Martignoni, M. E. & Iwai, P. J. (1981). A catalogue of viral diseases of insects, mites and ticks. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 897911. London and New York: Academic Press.Google Scholar
Martignoni, M. E., Iwai, P. J., Hughes, K. M. & Addison, R. B. (1969). A cytoplasmic-polyhedrosis of Hemerocampa pseudotsugata. Journal of Invertebrate Pathology. 13, 1518.CrossRefGoogle Scholar
Martignoni, M. E. & Milstead, J. E. (1962). Trans-ovum transmission of the nuclear poly-hedrosis virus of Colias eurytheme Boisduval through contamination of the female genitalia. Journal of Insect Pathology 4, 113–21.Google Scholar
Matthews, R. E. F. (1979). Classification and nomenclature of viruses. Intervirology 12, 132296.Google ScholarPubMed
Miller, L. K. & Dawes, K. P. (1978). Restriction endonuclease analysis for the identification of baculovirus pesticides. Applied and Environmental Microbiology. 35, 411–21.CrossRefGoogle ScholarPubMed
Monsarrat, P. & Veyrtjnes, J. C. (1976). Evidence of Oryctes virus in adult feces and new data for virus characterization. Journal of Invertebrate Pathology. 27, 387–9.CrossRefGoogle Scholar
Morris, O. N. (1980). Entomopathogenic viruses: strategies for use in forest insect pestmanagement. Canadian Entomologist. 112, 573–84.CrossRefGoogle Scholar
Orihel, T. C. (1975). The peritrophic membrane: its role as a barrier to infection of the arthropod host. In Invertebrate Immunity (ed. Maramorosch, K. and Shope, R. E.), pp. 6573. New York: Academic Press.CrossRefGoogle Scholar
Otieno, L. H., Kokwaro, E. D., Chimtawi, M. & Onyango, P. (1980). Prevalance of enlarged salivary glands in wild populations of Glossina pallidipes in Kenya, with a note on the ultrastructure of the affected organ. Journal of Invertebrate Pathology. 36, 113–18.CrossRefGoogle Scholar
Paschke, J. D. & Summers, M. D. (1975). Early events in the infection of the arthropod gut by pathogenic insect viruses. In Invertebrate Immunity (ed. Maramorosch, K. and Shope, R. E.), pp. 75112. New York: Academic Press.CrossRefGoogle Scholar
Payne, C. C. (1974). The isolation and characterization of a virus from Oryctes rhinoceros. Journal of General Virology. 25, 105–16.CrossRefGoogle ScholarPubMed
Payne, C. C. (1981 a). Cytoplasmic polyhedrosis viruses. In Pathogenesis of Invertebrate Microbial Diseases (ed. Davidson, E. W.), pp. 61100. New Jersey: Allanheld, Osmun & Co.Google Scholar
Payne, C. C. (1981 b). The susceptibility of the pea moth, Cydia nigricana, to infection by the granulosis virus of the codling moth, Cydia pomonella. Journal of Invertebrate Pathology. 38, 71–7.CrossRefGoogle Scholar
Payne, C. C., Compson, D. & de Looze, S. M. (1977). Properties of the nucleocapsids of a virus isolated from Oryctes rhinoceros. Virology. 77, 269–80.CrossRefGoogle ScholarPubMed
Payne, C. C. & Harrap, K. A. (1977). Cytoplasmic polyhedrosis viruses. In The Atlas of Insect and Plant Viruses (ed. Maramorosch, K.), pp. 105129. New York and London: Academic Press.Google Scholar
Payne, C. C. & Kelly, D. C. (1981). Identification of insect and mite viruses. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 6191. London and New York: Academic Press.Google Scholar
Payne, C. C. & Rivers, C. F. (1976). A provisional classification of cytoplasmic polyhedrosis viruses based on the sizes of the RNA genome segments. Journal of General Virology. 33, 7185.CrossRefGoogle ScholarPubMed
Payne, C. C., Tatchell, G. M. & Williams, C. F. (1981). The comparative susceptibilities of Pieris brassicae and P. rapae to a granulosis virus from P. brassicae. Journal of Invertebrate Pathology 38, 273–80.CrossRefGoogle Scholar
Pinnock, D. E. (1975). Pest populations and virus dosage in relation to crop productivity. In Baculoviruses for Insect Pest Control: Safety Considerations (ed. Summers, M., Engler, R., Falcon, L. A. and Vail, P.), pp. 145157. Washington, DC: American Society for Microbiology.Google Scholar
Pinnock, D. E. & Brand, R. J. (1981). A quantitative approach to the ecology of the use of pathogens for insect control. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 655665. London and New York: Academic Press.Google Scholar
Podgwaite, J. D. & Bruen, R. B. (1978). Procedures for the microbiological examination ofproduction batch preparations of the nuclear polyhedrosis virus (baculovirus) of the gypsy moth, Lymantria dispar L. Forest Service General Technical Report; North-East Forest Experiment station, NE-38. 8 pp. Washington, DC: US Department of Agriculture.Google Scholar
Podgwaite, J. D., Shields, K. S., Zerillo, R. T. & Bruen, R. B. (1979). Environmental persistence of the nucleopolyhedrosis virus of the gypsy moth, Lymantria dispar. Environmental Entomology. 8, 528–36.CrossRefGoogle Scholar
Reed, D. K. (1981). Control of mites by non-occluded viruses. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 427–32. London and New York: Academic Press.Google Scholar
Ripa, R. (1978). Studies of the susceptibility of Pieris brassicae (L.) to a granulosis virus. Ph.D. thesis, University of London.Google Scholar
Roome, R. E. & Daoust, R. A. (1976). Survival of the nuclear polyhedrosis virus of Heliothis armigera on crops and soil in Botswana (Lep., Noctuidae). Journal of Invertebrate Pathology. 27, 712.CrossRefGoogle Scholar
Shapiro, M., Bell, R. A. & Owens, C. D. (1980). In vivo propagation of the nucleopolyhedrosis virus of Lymantria dispar. In Characterization, Production and Utilization of Entomopathogenic Viruses (ed. Ignoffo, C. M., Martignoni, M. E. and Vaughn, J. L.), pp. 4353. Proceedings of the 2nd Conference of the US/USSR Joint Working Group on the Production of Substances by Microbiological Means. Washington, DC: American society for microbiology.Google Scholar
Sheppard, R. F. & Stairs, G. R. (1976). Effects of dissemination of low dosage levels of a granulosis virus in populations of the codling moth (Laspeyresia pomonella: Lep., Olethreutidae). Journal of Economic Entomology. 69, 583–6.CrossRefGoogle Scholar
Sheppard, R. F. & Stairs, G. R. (1977). Dosage–mortality and time–mortality studies of a granulosis virus in a laboratory strain of the codling moth Laspeyresia pomonella. Journal of Invertebrate Pathology. 29, 216–21.CrossRefGoogle Scholar
Shieh, T. R. & Bohmfalk, G. T. (1980). Production and efficacy of baculoviruses. Biotechnology and Bioengineering. 22, 1357–75.CrossRefGoogle Scholar
Simmons, C. L. & Sikorowski, P. P. (1973). A laboratory study of the effects of cytoplasmic polyhedrosis virus on Heliothis virescens (Lepidoptera: Noctuidae). Journal of Invertebrate Pathology. 22, 369–71.CrossRefGoogle Scholar
Smith, G. E. & Summers, M. D. (1978). Analysis of baculovirus genomes with restriction endonucleases. Virology 89, 517–27.CrossRefGoogle ScholarPubMed
Smith, K. M. & Rivers, C. F. (1956). Some viruses affecting insects of economic importance. Parasitology. 46, 235–42.CrossRefGoogle ScholarPubMed
Smith, R. F. (1975). Why are baculoviruses necessary for plant production? In Baculoviruses for Insect Pest Control: Safety Considerations (ed. Summers, M., Engler, R., Falcon, L. A. and Vail, P.), pp. 68. Washington, DC: American Society for Microbiology.Google Scholar
Stacey, A. L., Yearian, W. C. & Young, S. Y. III (1977 a). Evaluation of Baculovirus heliothis with feeding stimulants for control of Heliothis larvae on cotton. Journal of Economic Entomology 70, 779–84.CrossRefGoogle Scholar
Stacey, A. L., Young, S. Y. III & Yearian, W. C. (1977 b). Baculovirus heliothis mortalities and efficacy of directed sprays on cotton. Journal of the Georgia Entomological Society 12, 167–73.Google Scholar
Stacey, A. L., Young, S. Y. III & Yearian, W. C. (1977 c). Effect of larval age and mortality level on damage to cotton by Heliothis zea infected with Baculovirus heliothis. Journal of Economic Entomology 70, 383–6.CrossRefGoogle Scholar
Steinhaus, E. A. & Dineen, J. P. (1959). A cytoplasmic polyhedrosis of the alfalfa caterpillar. Journal of Insect Pathology. 1, 171–83.Google Scholar
Stiles, B. & Paschke, J. D. (1980). Midgut pH in different instars of three Aedes mosquito species and the relation between pH and susceptibility of larvae to a nuclear polyhedrosis virus. Journal of Invertebrate Pathology. 35, 5864.CrossRefGoogle Scholar
Stockdale, H. & Priston, R. A. J. (1981). Production of insect viruses in cell culture. In Microbial Control of Pests and Plant Diseases 1970–1980 (ed. Burges, H. D.), pp. 313328. London and New York: Academic Press.Google Scholar
Summers, M. D. (1975). Biophysical and Biochemical properties of Baculoviruses. In Baculoviruses for Insect Pest Control: Safety Considerations (ed. Summers, M., Engler, R., Falcon, L. A. and Vail, P.), pp. 1732. Washington, DC: American Society for Microbiology.Google Scholar
Summers, M. D. (1977). Baculoviruses (Baculoviridae). In The Atlas of Insect and Plant Viruses (ed. Maramorosch, K.), pp. 327. New York and London: Academic Press.Google Scholar
Summers, M. D., Engler, R., Falcon, L. A. & Vail, P. V. (1975). Baculoviruses for Insect Pest Control: Safety Considerations. Washington, DC: American Society for Microbiology.Google Scholar
Tanada, Y. (1964). A granulosis virus of the codling moth, Carpocapsa pomonella (Linnaeus) (Olethreutidae, Lepidoptera). Journal of Insect Pathology. 6, 378–80.Google Scholar
Tanada, Y. (1971). Persistence of entomogenous viruses in the insect ecosystem. In Entomological Essays to Commemorate the Retirement of Professor K. Yasumatsi, pp. 367379. Tokyo: Hokuryukan.Google Scholar
Tanada, Y. (1976). Ecology of insect viruses. In Perspectives in Forest Entomology (ed. Anderson, J. F. and Kaya, H. K.), pp. 265283. New York: Academic Press.Google Scholar
Tatchell, G. M. (1981 a). The effects of a granulosis virus infection and temperatures on the food consumption of Pieris rapae (Lep.: Pieridae). Entomophaga 26, 291–9.CrossRefGoogle Scholar
Tatchell, G. M. (1981 b). The transmission of a granulosis virus following the contamination of Pieris brassicae adults. Journal of Invertebrate Pathology. 37, 210–13.CrossRefGoogle Scholar
Thompson, C. G. & SCOTT, D. W. (1979). Production and persistence of the nuclear polyhedrosis virus of the douglas-fir tussock moth, Orgyia pseudotsugata (Lepidoptera: Lymantriidae), in the forest ecosystem. Journal of Invertebrate Pathology. 33, 5765.CrossRefGoogle Scholar
Thresh, J. M. (1980). The origins and epidemiology of some important plant virus diseases. Applied Biology. 5, 165.Google Scholar
Tinsley, T. W. (1975). Factors affecting virus infection of insect gut tissue. In Invertebrate Immunity (ed. Maramorosch, K. and Shope, R. E.), pp. 5563. New York: Academic Press.CrossRefGoogle Scholar
Tinsley, T. W. (1977). Viruses and the biological control of insect pests. Bioscience. 27, 659–61.CrossRefGoogle Scholar
Tinsley, T. W. (1979). The potential of insect pathogenic viruses as pesticidal agents. Annual Review of Entomology. 24, 6387.CrossRefGoogle ScholarPubMed
Tiong, R. H. C. & Munroe, D. (1976). Microbial control of an outbreak of Darna trima (Moore) on oil palm (Elaeis guineensis Jacq.) in Sarawak (Malaysian Borneo). Proceedings of the Malaysian International Agricultural Oil Palm Conference. 16 pp.Google Scholar
Tweeten, K. A., Bulla, L. A. Jr & Consigli, R. A. (1981). Applied and molecular aspects of insect granulosis viruses. Microbiological reviews. 45, 379408.CrossRefGoogle ScholarPubMed
Vago, C. (1959). Sur le mode d'infection de la virose intestinale de Thaumetopoea pityocampa schiff. Entomophaga. 4, 311–14.CrossRefGoogle Scholar
Vago, C., Croissant, O., Lepine, P. (1959). Processus de l'infection à virus a partir des corps d'inclusion de ‘polyédrie cytoplasmique’ ingèrés par le lépidoptère sensible. Mikroskopie. 14, 3640.Google Scholar
Vail, P. V. & Gough, D. (1970). Effects of cytoplasmic-polyhedrosis virus on adult cabbage loopers and their progeny. Journal of Invertebrate Pathology. 15, 397400.CrossRefGoogle Scholar
Vail, P. V. & Jay, D. L. (1973). Pathology of a nuclear polyhedrosis virus of the alfalfa looper in alternate hosts. Journal of Invertebrate Pathology. 21, 198204.CrossRefGoogle Scholar
Vail, P. V., Romine, C. L. & Vaughn, J. L. (1979). Infectivity of nuclear polyhedrosis virus extracted with digestive juices. Journal of Invertebrate Pathology. 33, 328–30.CrossRefGoogle Scholar
Vail, P. V., Sutler, G., Jay, D. L. & Gough, D. (1971). Reciprocal infectivity of NPVs of the cabbage looper and alfalfa looper. Journal of Invertebrate Pathology. 17, 383–8.CrossRefGoogle Scholar
Van Der Beek, C. P., Saaijer-Riep, J. D. & Vlak, J. M. (1980). On the origin of the polyhedral protein of Autographa californica nuclear polyhedrosis virus. Virology. 100, 326–33.CrossRefGoogle ScholarPubMed
Vaughn, J. L. (1976). The production of viruses for insect control in large scale cultures of insect cells. In Invertebrate Tissue Culture; Research Applications (ed. Maramorosch, K.), pp. 295303. New York: Academic Press.CrossRefGoogle Scholar
Vinson, S. B. & Iwantsch, G. F. (1980). Host suitability for insect parasitoids. Annual Review of Entomology. 25, 397419.CrossRefGoogle Scholar
Vlak, J. M. & Gröner, A. (1980). Identification of two nuclear polyhedrosis viruses from the cabbage moth, Mamestra brassicae (Lepidoptera: Noctuidae). Journal of Invertebrate Pathology. 35, 269–78.CrossRefGoogle Scholar
Watanabe, H. (1966). Some aspects on the mechanism of resistance to peroral infection by cytoplasmic-polyhedrosis virus in the silkworm, Bombyx mori L. Journal of Sericultural Science, Japan. 35, 411–17.Google Scholar
Watanabe, H. (1967). Development of resistance in the silkworm, Bombyx mori, to peroral infection of a cytoplasmic-polyhedrosis virus. Journal of Invertebrate Pathology. 9, 474–9.CrossRefGoogle Scholar
Whitlock, V. H. (1978). Dosage–mortality studies of a granulosis and a nuclear polyhedrosis virus of a laboratory strain of Heliothis armigera. Journal of Invertebrate Pathology. 32, 386–7.CrossRefGoogle Scholar
Wigley, P. J. (1976). The epizootiology of a nuclear polyhedrosis virus disease of the winter moth, Operophtera brumata L., at Wistman's wood, Dartmoor. D.Phil, thesis, University of Oxford.Google Scholar
Wilson, F. (1960). The effectiveness of a granulosis virus applied to field populations of Pieris rapae (Lepidoptera). Australian Journal of Agricultural Research. 11, 485–97.CrossRefGoogle Scholar
Wood, H. A., Hughes, P. R., Johnston, L. B. & Langridge, W. H. R. (1981). Increased virulence of Autographa californica nuclear polyhedrosis virus by mutagenesis. Journal of Invertebrate Pathology. 38, 236–41.CrossRefGoogle Scholar
Young, E. C. (1974). The epizootiology of two pathogens of the coconut palm rhinoceros beetle. Journal of Invertebrate Pathology. 24, 8292.CrossRefGoogle ScholarPubMed
Young, S. Y. & Yearian, W. C. (1974). Persistence of Heliothis NPV on foliage of cotton, soybean and tomato. Environmental Entomology. 3, 253–5.CrossRefGoogle Scholar
Zelazny, B. (1977). Occurrence of the baculovirus disease of the coconut palm rhinoceros beetle in the Philippines and in Indonesia. FAO Plant Protection Bulletin. 25, 73–7.Google Scholar