The Application Of Microwaves Ray To Controlling The Adults Of Some Stored Grain Insects

Abstract

The results of the application of microwaves ray to controlling the adults of Lesser grain borer , Saw-toothed grain beetle and Confused flour beetle ,revealed that the microwaves ray produced a superior killing to the adults of the three species and as Increasing the energy levied from 200 , 400 , 600 , 800 Watt . Increased the mortality percentage and reached 28.33 , 60 , 75.83 and 81.67% respectively for the Lesser grain borer and 1.67 , 46.07 , 88.33 and 81.67% for Saw-toothed grain beetle respectively and for Confused flour beetle reached 10.84 , 35.83 , 79.17 and 94.17% respectively . The effect of exposure periods ( 15 , 30 , 45 , 60 ) Sec. showed a clear effect in increasing the mortality percentage in insect adults and reached 33.33 , 65 , 70 and 79.17% for Lesser grain borer and 35 , 47.5 , 65.83 and 70% for Saw-toothed grain beetle and 37.5 , 47.5 , 70 and 65% for Confused flour beetle respectively .The result also exhibited that the energy levied of 600 Watt with an exposure period for 45 Sec. produce a 100% mortality to the adults of the three species .