Abstract
A dose-mortality technique was used to compare the pathogenicity ofNosema whitei for 4 stored products pests.Tribolium castaneum, T. confusum andOryzaephilus surinamensis were similar in susceptibility, whileT. anaphe was at least 100 times more susceptible. A possible explanation for this difference is thatT. anaphe has a much longer developmental time (28 days at 25°C) than the other 3 species (20 days at 25°C). The host range was studied in another 8 species from 2 orders.T. brevicornis, T. destructor, andT. madens were all susceptible while the other species tested (includingTenebrio molitor, Palorus ratzburgi andPlodia interpunctella) were refractile to infection.
Résumé
On a utilisé une technique mortalité/dose pour comparer la pathogénie deNosema whitei pour 4 insectes nuisibles aux produits entreposés.Tribolium castaneum, T. confusum etOryzaephilus surinamensis sont à peu près également sensibles, tandis queT. anaphe est au moins cent fois plus susceptible. II est possible que cette différence soit déterminée par le temps de développement, qui est beaucoup plus long chezT. anaphe (28 jours à 25°C) que chez les trois autres espèces (20 jours à 25°C). La réceptivité des hôtes potentiels a été étudiée chez huit autres espèces de deux ordres.T. brevicornis, T. destructor etT. madens sont tous susceptibles, tandis que les autres espèces étudiées (y comprisTenebrio molitor, Palorus ratzburgi etPlodia interpunctella) sont résistantes à l'infection.
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References
Burges, H. D. et al. — 1967. The standardisation ofBacillus thuringiensis tests on three candidate reference materials. In “Insect Pathology and Microbial Control” (P. A. van der Laan, ed.). —North-Holland Publ. Co., Amsterdam, pp. 314–337.
Burges, H. D., Canning, E. U. &Hurst, J. A. — 1971. Morphology, development and pathogenicity ofNosema oryzaephili. n. sp. inOryzaephilus surinamensis and its host range among granivorous insects. —J. Invertebr. Pathol.,17, 419–432.
Fisher, F. M. Jr. &Sanborn, R. C. — 1962a. Observations on the susceptibility of some insects toNosema [Microsporidia: Sporozoa]. —J. Parasitol.,48, 926–932.
— — 1962b. Production of an insect juvenile hormone by a microsporidan parasite,Nosema. —Nature,104, 1193.
Helms, T. J. &Raun, E. S. — 1971. Perennial laboratory culture of disease-free insects. In “Microbial Control of Insects and Mites” (H. D. Burges & N. W. Hussey, eds). —Academic Press, London, pp. 639–654.
McLaughlin, R. E. — 1971. Use of protozoans for microbial control of insects. In “Microbial Control of Insects and Mites” (H. D. Burges &N. W. Hussey, eds.). —Academic Press, London, pp. 151–172.
Milner, R. J. — 1972b.Nosema whitei, a microsporidan pathogen of some species ofTribolium. I. Morphology, life cycle, and generation time. —J. Invertebr. Pathol.,19, 231–238.
— — 1972b.Nosema whitei, a microsporidan pathogen of some species ofTribolium. III. Effect ofT. castaneum. —J. Invertebr. Pathol.,19, 248–255.
— — 1972. c The survival ofNosema whitei spores stored in flour at 4°C. —J. Invertebr. Pathol.,20, 356–357.
— — 1973.Nosema whitei, a microsporidan pathogen of some species ofTribolium. IV. The effect of larval age, temperature and humidity on pathogenicity forT. casteneum. —Entomophaga,18, 305–316.
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This work, financed by a Science Research Council (U. K.) studentship, is based on a thesis for a degree of Ph. D. at the University of Newcastle-upon-Tyne.
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Milner, R.J. Nosema whitei, a microsporidan pathogen of some species ofTribolium V. Comparative pathogenicity and host range. Entomophaga 18, 383–390 (1973). https://doi.org/10.1007/BF02371014
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DOI: https://doi.org/10.1007/BF02371014