Title: Evaluation of the Insecticidal Efficacy of Thiocyclamen Hydrogenacoxalate (Vibrant) Granules in Control of Rice Striped Stem Borer under Paddy Field Conditions
Autore: Farzad Majidi-Shilsar
Due to the long-term use of some chemical insecticides to control rice striped stem borer in rice fields in the north of Iran and in order to prevent the development of stem borer resistance to them, it is necessary to use new insecticides such as thiosyclam hydrogan oxalate granules 4% (vibrant) is necessary to control this pest. This study was conducted simultaneously in Gilan and Mazandaran provinces for the first and second generations of the pest. In this study, treatments include 1- Vibrant granule insecticide 4% at the rate of 10 kg/ha) 2- Vibrant granule insecticide at the rate of 12.5 kg / ha 3- Vibrant granule insecticide 4% at the rate of 15 Kg / ha) 4- Diazinon granule insecticide 10% at the rate of 15 kg/ha 5- Fipronyl granule insecticide 0.2% at the rate of 20 kg/ha 6- Control (only watering). This experiment was performed in a randomized complete block design with 3 replications. The indicators evaluated in this study were determining the number of dead hearts in the first generation, determining the number of white heads in the second generation, and the effect on the efficiency of the tested insecticides and also the yield of rice. Among the insecticides, diazinon, fipronil, thiocyclam hydrogen oxalate, thiocyclam hydrogen oxalate 4% and diazinon 10 granules at the rate of 15 kg/ha, respectively, and fipronil 0.2% at 20 kg, hiocyclam hydrogen oxid 12.5 kg/ha showed significant efficiency and superiority for controlling rice striped stem borer. Therefore, the use of the new thiocyclam hydrogen oxide granule insecticide could replace diazinon for integrated management of stem borer in rice crop ecosystems.
Keywords: Thiosyclam hydrogen oxalate, granules, strip stem eater, chemical control.