THE EFFECT OF DIFFERENT CONCENTRATIONS OF METARHIZIUM ANISOPLIAE (METCHNIK OFF) SOROKIN IN THE FOURTH LARVAE INSTAR OF TROGODERMAGRANARIUM EVERTS(COLEOPTERA: DERMESTIDAE)

The present study was conducted to determine the effects of Metarhizium anisopliaefugus(Metchnikoff)as biocontrol agent against the fourth larvae instar of Trogodermagranarium(Everts) under laboratory conditions different concentrations 4x107 ,4x105 ,4x103 conidia/ml. Each concentration treated 10 larvae and replicated 3 times. The results showmortality rate was elevated with conidial concentration. The killing rate was 70%,60%and 56.5% at the different concentrations 4x107 ,4x105 ,4x103 conidia/ml, respectively. The effect of fungi clearly appears in the total number of eggs laid by emergedadultsfrom treatmentlarvae, it highly decreased at 4x107 conidia/ml about 10 eggs which is a significant difference compared with control 100 eggs.