A STUDY OF BIOFUNGUS Metarihizum anisopliae IN SOME BIOLOGICAL ASPECTS OF SAW TOO THE GRAIN BELT Oryzaephilitis suriuamensis L. ON RICE

This study was conducted in Biology Dept., College of Science for women , Baghdad University in year 2010 to identify the effect of Biofungus Metarihizum anisopliae in some different stages of saw toothed grain beetle Oryzaephilitis suriuamensis . The eggs in age of 24 and 72 hours, Larvae in second fourth instar and pupae in age 24 and 72 were treated with fungal dilution 4.810 -6 , 4.810 -4 and 4.810 -2 . Results of the study showed the following : Non hatching eggs at the age at 24 hours with fungal suspension 4.8 x 10-2, while 100% the highest mortality rate for egg , but lowest rate mortality was 23.3% of dilution 4.8 x 10-4. The highest mortality of four larvae stage 66.6% indilution 4.8 x 10-4. The highest mortality of pupa 73.3% in 72 hours.