Efficacy of new insecticide flubendiamid (Takomi® WG20%)against tomato fruitworm.
2013
Sheikhi Garjan, Aziz | Javadzade, Mehran | Garali, Ali Hossein
The tomato fruit worm, Helicoverpa armigera (Hubner) is a key pest of tomato in Iran. It causes economic loss by reduction in fresh fruit quality and yield in tomato which could be suppressed using broad spectrum insecticides for 7-16 applications per season every year. The aim of this study was to introduce new and selective insecticides. This research carried out with 6 treatments and 4 replications in 2 provinces, Khorasan Razavi, and Ardebil in 2012.Treatments were included: thiodicarb 80% DF 1g/L indoxacarb 150% SC 0.25ml/L, flubendiamid (Takomiض 20%WG) 0.15, 0.2 and 0.25 g/L and control (without application). The results showed that mean efficacies of insecticides were significantly different at =5%. In Ardebil province, indoxacarb (87.46%) and Takomiض 0.25 g/L(97.2%) had the least and the most efficacy at 7 days after treatment whereas In Khorasan Razavi, the efficacies of thiodicarb (35.32%) and Takomiض 0.25 (83.4%) were the least and the most efficacy respectively at 20 days after application. Also in both the provinces, the treatment of Takomiض 0.15 g/L had lower effectiveness. Thus it can be used at optimized concentration (0.2g/L) against tomato fruit worm. 32/35 Key words: Takomiض, indoxacarb, thiodicarb , flubendiamid and chemical control
显示更多 [+] 显示较少 [-]