Evaluation of the Efficacy of Insecticide lufenuron (EC %5) on the Control of Chickpea Field Pod Borer, Heliothis viriplaca

In order to determine the efficacy of the new insecticide lufenuron (Flagu® EC 5%) with two concentrations of 1.5:1000 (300 ml/ha) and 2:1000 (400 ml/ha) on Heliothis viriplaca, in comparison with Thiodicarb DF 80% at 5:1000 (1 Kg/ha), B.T (Raha Andish Kavan) at 12.5:1000 (2/5L/ha), Indoxacarb (Avaunt® SC15%) at 1.25:1000 (250 ml/ha) a randomized complete block design experiment was conducted in Kordestan (with 4 replicates) and Kermanshah provinces (with 5 replicates) in the crop year 2015. By continuous visiting, when the amount of pests reached about 2-3.9 larvae/square meter, insecticides were sprayed on the treatment plots, and water was sprayed on the control treatment. Live larvae were counted, a day before spraying, 3 and 7 days after treatments in experimental plots and the control. Sampling was carried out by taking 10 plants from the middle line of each plot, and the live larvae on the samples were counted. The results show that the lowest number of infected pods in 10 plants and the lowest number of live larvae on the 7th day after spraying the plants in both the provinces were registered by lufenuron at the concentration of 2:1000. Efficacy of lufenuron (2:1000) at the 7th day after spraying was recorded to be 96.2±3.32% in Kermanshah and 94.75±5.25 % in Kordestan which were the highest among the treatments.