Application of insecticides by soil drenching before seedling transplanting combined with anti-insect nets to control tobacco whitefly in tomato greenhouses | Scientific Reports - Nature.com
Abstract Application of chemical pesticides is currently the main effective method to control tobacco whitefly ( Bemisa tabaci ) in tomato in China. The B. tabaci control efficacy of three systemic insecticides (thiamethoxam, sulfoxaflor and cyantraniliprole) by pre-transplant soil drenching with anti-insect nets throughout the tomato growth period was evaluated in two tomato greenhouses in the suburbs of Beijing, China, in 2018 and 2019. In two greenhouse trials, thiamethoxam 25% water dispersible granules (WDG) at a field rate of 21 g a.i./hm 2 , sulfoxaflor 22% aqueous suspension (AS) at 18 g a.i./hm 2 or cyantraniliprole 10% oil-based suspension concentrate (OD) at 18 g a.i./hm 2 applied via soil drenching before seedling transplanting in combination with white anti-insect nets (50 mesh) all effectively controlled the damage to B. tabaci and resulted in a low density of adults and eggs during the entire growing season, which was significantly lower th...