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| Author(s): | Vänninen I., Hokkanen H. |
| Year: | 1997 |
| Title: | Efficacy of entomopathogenic fungi and nematodes against Argyresthia conjugella (Lep.: Yponomeutidae) |
| Citation: | Entomophaga. 42:(3) 377-385. . |
Abstract:
The efficacy of Paecilomyces fumosoroseus (Wize) Brown & Smith, P. farinosus (Holm ex S. F. Gray) Brown & Smith, Beauveria bassiana (Balsamo) Vuillemin, Metarhizium anisopliae (Metschnikoff) Sorokin and an entomoparasitic nematode, Steinernema feltiae (Filipjev), against larvae and pupae of the apple fruit moth Argyresthia conjugella (Zell.) (Lepidoptera: Yponomeutidae) was studied in field and laboratory experiments. All species of fungi and the nematode were highly pathogenic to larvae in Petri dishes. In soil, the pathogenicity of B. bassiana and P. farinosus for larvae decreased. Pupae inside cocoons were highly susceptible to P. fumosoroseus, but not to P. farinosus or B. bassiana. In the field experiment, treatment of soil with conidia of P. fumosoroseus at a rate of 1 x 10(7) conidia per cm(2) reduced the emergence of overwintered A. conjugella adults by 70.1% compared to untreated control soil |
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