EFFECT OF ENTOMOPATHOGENIC FUNGI, Beauveria bassiana (BALSAM) AND Metarhizium anisopliae (METSCH) ON NON TARGET INSECTS
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Abstract
The effect of entomopathogenic fungi, Beauveria bassiana (Balsamo) (isolate Bb.5335) and Metarhizium anisopliae (Metsch) (isolate Ma.7965) on non target insects, such as natural enemies, Coccinella septempunctata L. (Col., Coccinellidae), Chrysoperla carnea (Stephens) (Neur., Chrysopidae) and Dicyphus tamaninii Wagner (Him., Miridae) as well as beneficial soil insect, Heteromurus nitidus Templeton (Collembola: Entomobryidae) were studied. The experiments were conducted on conidial suspensions at a concentration of 1×108 conidia/ml. The 1st larval instars of C. septempunctata, C. carnea and adults of D. tamaninii and H. nitidus were tested. Mortality was recorded daily till the next generation.The results showed that B. bassiana was found to be non-pathogenic to natural enemies and beneficial soil insect. While M. anisopliae had pathogenicity to natural enemies, C. carnea and D. tamaninii, in which D. tamaninii was more susceptible than C. carnea with corrected mortalities of 10 and 4%, respectively.
Keywords: entomopathogenic fungi, side effect, non target insect
Corresponding author: E-mail: mthungrabeab@yahoo.com
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