Infectivity of two members of theEntomophthora muscae complex [Zygomycetes: Entomophthorales] forMusca domestica [Dipt.: Muscidae] |
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| Authors: | R Bellini B A Mullens J B Jespersen |
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| Institution: | (1) Istituto di Entomologia ‘Guido Grandi’, Universita degli Studi di Bologna, Italy;(2) Department of Entomology, University of California, 92521 Riverside, California, USA;(3) Danish Pest Infestation Laboratory, Skovbrynet 14, DK-2800 Lyngby, Denmark |
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| Abstract: | Dose-mortality studies were conducted with 2 members of theEntomophthora muscae (Cohn) Fresenius complex from southern California (CA) and Denmark (DA) infecting house flies,Musca domestica L., from southern California. Primary conidia of the DA form were significantly more infective (LC50=34 conidia/mm2) than primary conidia of the CA form (LC50=67 conidia/mm2) for 2–7 days old (‘young’) flies. Infectivity (single experimental trial) for 10–14 day old (‘old’) flies of primary conidia
of the CA form (LC50=34 conidia/mm2) was similar to that of the DA form for young flies. Secondary conidia of the CA form were markedly more infective (LC50=0.36 conidia/mm2) than primary conidia of either form. Dose had no significant effect on incubation period for primary conidia of either form,
but increased doses resulted in significantly shorter incubation periods for flies exposed to secondary conidia of the CA
form.
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| Keywords: | Entomophthora muscae Musca domestica Muscidae infectivity biological control |
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