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Entomophaga

, Volume 18, Issue 4, pp 383–390 | Cite as

Nosema whitei, a microsporidan pathogen of some species ofTribolium V. Comparative pathogenicity and host range

  • R. J. Milner
Mémoires Originaux

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.

Keywords

Plant Pathology Host Range Developmental Time Tribolium Castaneum Store Product Pest 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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Copyright information

© Le François 1973

Authors and Affiliations

  • R. J. Milner
    • 1
  1. 1.Department of Agricultural ZoologyUniversity of Newcastle-upon-TyneEngland

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