Abstract
The results showed that the pirimor (0.01) has highly effective against the aphid,Aphis fabae Scop. 70%The percentage of predators eggs Coccinella septempunctata L to failed hatch and the percent mortalities; 1st.,2nd., 3rd.,4th. Instars, pupa and adults were; 20,25, 20,10,5, 10, and 13% respectively. The predatism efficiency rate of treated stage decreased during all larval and adult stages. Pirimor tended to decrease the period from egg to adult. Morphological deformities occurred in over14.28%of the adults developed from treated1st.instar larvae. Sex ratio differed slightly from the control. Cuticle thickness of each stage till the adults, was decreased slightly. Fat bodies diametersin treated stages were increased as aresult of insecticide storage.It could be concluded that the cuticle an the fat bodies were among the most important defense activities in predators.
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