کارایی حشره‌کش متوکسی فنوزاید 30% + ایندوکساکارب 10% (متین SC 40%) جهت کنترل کرم سیب،Cydia pomonella L. (Lepidoptera: Tortricidae)

The codling moth, Cydia pomonella L. is a key pest of apple orchards and one of the important pests of other grain crops and walnuts. Chemical insecticides are the most common method used to control this pest. To diversify the basket of insecticides to control this key pest and prevent the emergence of resistance to insecticides, the effectiveness of the combinations of methoxyfenozide 30% + indoxacarb 10% (Metin SC 40%) with concentrations of 0.75 and 0.5 per thousand, Cypermethrin EC 40% with a concentration of 0.75 per thousand, Acetamide (Mospilan SP20%) with a concentration of 0.5 per thousand, Phosalon (Zolon 35% EC) with a concentration of 1.5 per thousand, Thiacloprid (Biscaya OD 240) 0.5 per thousand and controls without using any insecticides (only spraying) were investigated in apple orchards with dominant commercial cultivars in three provinces of Tehran (Damavand), East Azarbaijan and Chaharmahal Bakhtiari. Experiments were conducted according to RCBD experiments with four replications. Data ANOVA revealed statistically significant differences among treatments, according to the obtained results from East Azarbaijan and Chaharmahal Bakhtiari. The effect of the treatments on pest control was evaluated 7, 14, 21, and 28 days after spraying, sampling was done from apple fruits and the average of the treatments was compared 28 days after spraying using Duncan's test. It was done at the probability level of 5%. The results showed that all the evaluated treatments had a significant difference compared to the control treatment without spraying, and had an acceptable efficiency in reducing the codling moth damage. The percentage reduction of fruit contamination after 28 days of spraying in Cypermethrin treatments (EC 40%) was 0.75 per thousand with an average between 64.37-91.36%, Acetamide (Mospilan SP20%) with a concentration of 0.5 per thousand with The average is 64.02-91.24%, Phosalon (EC%35) with a concentration of 1.5 per thousand with 64.29-92.78%, Thiacloprid (OD 240) with a 0.5 per thousand with an average of 69.5-87.3%, methoxyfenozide 30% + indoxacarb 10% (Metin SC 40%) with a concentration of 0.5 per thousand with an average of 54.04-89.17% and methoxyfenozide 30% + indoxacarb 10% (Metin SC 40%) with a concentration of 0.75 per thousand with an average of 77.28-96.04%. Finally, 30% methoxyfenozide + 10% indoxacarb (Metin SC 40%) was applied, with a concentration of 0.5 per thousand had an acceptable efficiency.