Control of Spodoptera frugiperda on Fresh Corn via Pesticide Application before Transplanting

Background: Pesticide application before transplanting crops has been widely used in rice as an economical and effective method for reducing the use of chemical pesticides. This study focused on feasibility pesticides a fresh corn nursery to control Spodoptera frugiperda. Methods: Three pesticides, including 35% Chlorantraniliprole WDG, 6% Spinetoram SC, 3% Emamectin Benzoate combined with Polyorganosilicon (HTY-A8) or special flight additives (MF) synergists were their toxicity was determined larvae S. frugiperda feeding sweet third leaf stage treated 5 25 times conventional field concentration. The best combinations tested field. results showed that exhibited high sensitivity three period pest validity WDG SC about 20 days, while much shorter. active component content leaves significantly higher than Spinetoram. effects promoted by HTY-A8 MF. experiment effect could last 17 days spraying at concentration transplanting, Furthermore, this reduce amount ingredient 4/5 3/4 found single spray seed coating treatment, respectively. Conclusions: puts forward new effectively seedling corn.