Phytoparasitica (2010) 38, 125-132

Fikret Demirci and Evsel Denizhan (2010)
Paecilomyces lilacinus, a potential biocontrol agent on apple rust mite Aculus, schlechtendali and interactions with some fungicides in vitro
Phytoparasitica 38 (2), 125-132
Abstract: The apple rust mite Aculus schlechtendali (Nal.) (Acari: Eriophyidae), is a main pest in apple-growing areas in Ankara, Turkey, and chemical control applications have some limitations. Entomopathogenic fungi have a potential for biological control of mites. In this study, an entomopathogenic fungus, Paecilomyces lilacinus (Thom) Samson (Deuteromycota: Hyphomycetes), was first isolated from the mite cadavers on Japanese crab apple leaves and pathogenicity of the fungus was observed in different inoculum densities and relative humidities. The pathogen caused up to 98.22% mortality of the mite population. The effects of some fungicides on the entomopathogenic fungus were determined in in vitro studies. Carbendazim, penconazole and tebuconazole were the most effective fungicides on mycelial growth of P. lilacinus, with EC₅₀ values under 3 µg ml^-1. In spore germination tests, captan, mancozeb, propineb were the most effective fungicides, followed by tebuconazole, penconazole, nuarimol and chlorothalonil. Sulphur could not inhibit the conidia germination totally at 5,000 µg ml^-1. Copper oxychloride and fosetyl-al prevented conidia formation at concentrations above 1,000 µg ml^-1.
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Link to article at publishers website
Database assignments for author(s): Fikret Demirci

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution
resistance to pesticides

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aculus schlechtendali	Apple (Malus)	Turkey
Purpureocillium lilacinum (entomopathogen)	Aculus schlechtendali	Apple (Malus)	Turkey