تغییر در اختصاص ذخایر انرژی جمعیت‌های مختلف تریپس غربی گل در پاسخ به فشار حشره‌کش‌های دی‌کلرووس و آبامکتین

Western flower thrips is an important pest of greenhouse crops and annually inflicts irreparable damage on this crops. In this study, the effect of dichlorvos and abamectin, which are mainly used to control this pest, on allocating energy reserves was investigated in eight strains of western flower thrips collected from Tehran, Markazi, Alborz, Qazvin, Isfahan, Yazd and Kerman provinces with different levels of resistance to dichlorvos and abamectin. In order to perform the experiment, protein, lipid, carbohydrate and glycogen were extracted from 2nd instar larvae of each strain using a single method. Based on the results, the amount of protein in Yazd and Alborz strains, as resistant strains to dichlorvos and abamectin with resistance factors equal to 2.14 and 59.57 fold, was more than the Isfahan susceptible strain, 1.23 and 1.22 fold, respectively. In comparison, there was found a significant reduction in the lipid content of these strains equal to 0.61 and 0.66 fold, respectively. Similar results were obtained for carbohydrate and glycogen. In the Yazd strain, the ratio of carbohydrate was 0.52 fold and in the Alborz strain, this ratio was calculated to be 0.84 fold compared to the Isfahan strain. The glycogen ratio in these resistant strains was obtained 0.60 and 0.71 fold, respectively. The results showed that in resistant strains, the allocation of energy reserves has changed from lipid to protein. This can be attributed to the increased activity of detoxifying enzymes to counteract with insecticides pressure. Also, increasing the consumption of carbohydrate and glycogen in Yazd and Alborz strains can be related to production of energy to overcome the pressure of insecticides.