Evaluation Effectiveness of Some Insecticides on Stages of Plodia interpunctella (Hubner) (Lepidoptera: Pyralidae)

Abstract

The results of a study showed the effect of some insecticides (Indoxacarb, Pymetrozine and Mythoxyfenozide) on stages plodia interpunctella (eggs, larvae, pupae and adults) Variation in the average mortality percentages the insect phases for the three insecticides as reached Indoxacarb insecticide 79.67, 50.00, 60.00 and 50.00% respectively as reached Pymetrozine insecticide 55.00, 50.00, 50.00 and 50.00% respectively and Mythoxyfenozide insecticide reached 70.66, 53.33, 40.00 and 60.00% respectively. The results From the results of the statistical analysis, it was found that Indoxacarb insecticide More effective in mortality the stages of the insect on average 59.92% then Mythoxyfenozide reached 56.00% and finally Pymetrozine insecticide reached 51.25%. The results showed that egg stage is more sensitive to the three insecticides than the other stages as reached 68.46, 51.11, 50.00 and 53.33% respectively. The results showed that the average mortality percentages were directly proportional to the increase in the concentrations of the three insecticides.