Effects of selected pesticides on the growth of fungi from Hirsutella genus isolated from phytophagous mites
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University of Podlasie, Department of Plant Protection Prusa 14, 08-110 Siedlce, Poland
Cezary Tkaczuk
University of Podlasie, Department of Plant Protection Prusa 14, 08-110 Siedlce, Poland
Journal of Plant Protection Research 2005;45(3):171–179
The aim of this study was to determine in vitro effects of selected pesticides on the growth of fungi: Hirsutella nodulosa , H. brownorum , H. kirchneri and H. necatrix , isolated from phytophagous mites. Insecticides and herbicide were added to the medium at the following rates: 0.1; 1 and 10 times the field rate recommended by manufacturer. Fungicides were applied at the following rates: 0.01, 0.1 and 1 times the rate recommended by manufacturer. Pesticides tested in this experiment showed a strong inhibiting effects on the growth of fungi from Hirsutella genus – natura lpathogens of phytophagous mites. Among a l lpesticides tested, fungicides showed the strongest inhibiting effect on the growth of Hirsutella species and especially flusilazole (Punch 400 EC). Amitraz (Mitac 20 EC) and phosalone (Zolone 350 EC) were the most toxic among tested insecticides. Fungi H. necatrix and H. kirchneri isolated from eriophyid mite Abacarus hystrix were the most resistant to toxic effect of tested pesticides but H. nodulosa isolated from Tarsonemidae mite seems to be the most susceptible
The authors have declared that no conflict of interests exist.
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