Effect Of Magnetic Periods On The Toxicity Of Some Insecticides To The Larvae And Adults Of Tribolium confusum Duv.

Abstract

The results of studying the effect of magnetic periods (1, 2 and 3weeks) by 1500 Kause , on response of larvae and adults of Tribolium confusum to Salut , Marshal and Vapcotol insecticides at (500 , 1000 and 1500 ppm) . Showed that the adults response to the insecticides were decreased with increasing the magnetic period , and the general mean of mortality reached 79.25 , 53.33 and 42.96% at 1st , 2nd and 3rd week respectively . The larvae revealed a varying response to insecticides , and showed a lower response to insecticides at the 2nd week from exposure to magnetic field. Larvae and adults exhibit a good response to Salut reached 60.44% and 84.44% espectively in comparison with Marshal and Vapcotol.