Entomophaga (1997) 42, 377-385

I. Vänninen and H. Hokkanen (1997)
Efficacy of entomopathogenic fungi and nematodes against Argyresthia conjugella (Lep.: Yponomeutidae)
Entomophaga 42 (3), 377-385
Abstract: The efficacy of Paecilomyces fumosoroseus (Wize) Brown and Smith, P. farinosus (Holm ex S. F. Gray) Brown and 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 (ZeIL) (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 10⁷ conidia per cm² reduced the emergence of overwintered A. conjugella adults by 70.1% compared to untreated control soil.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Irene Vänninen

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Argyresthia conjugella	Apple (Malus)	Finland
Beauveria bassiana (entomopathogen)	Argyresthia conjugella	Apple (Malus)	Finland
Metarhizium anisopliae (entomopathogen)	Argyresthia conjugella	Apple (Malus)	Finland
Cordyceps farinosa (entomopathogen)	Argyresthia conjugella	Apple (Malus)	Finland