Effect of Insecticide Application on Aphis gossypii (Hemiptera: Aphididae) Population in Cotton Field According to Irrigation Time

Abstract

Aphis gossypii (Hemiptera: Aphidididae), which is harmful to the cotton plant, causes economic damage by sucking the buds and leaves of the plant with its stinging-sucking mouth structure. There are many control methods to reduce the damage of this pest on cotton below the economic damage threshold. One of them is chemical control method. In this study, the effect of insecticide application on the population density of A. gossypii to irrigation duration in cotton areas was investigated. The study was carried out in Eyyübiye district of Şanlıurfa province in 2019. The experiment was carried out on 150 decares, 10 decares of this area was divided into 2 blocks and insecticide application with Acetamiprid active ingredient was applied to the irrigation duration. The experiments were carried out with 20 replications and counts were made according to the results of the insecticide application. As a result, it was observed that the insecticide application applied to the cotton aphid population before irrigation was more successful. The results point out that more successful chemical control can be made against A. gossypii with the insecticide applied before irrigation.