Control of a number of cabbage moth males (Plutella xylostella L.) in crops of spring rapeseed using pheromones

Cabbage moth Plutella xylostella (Linnaeus, 1758) is a wide spreading pest of rapeseed and other cruciferous crops. Annual yield loses and expenses for insect control in the world are estimated at $4-5 billion. The pest has an increased tendency to develop resistance to pesticides. The modern instrumental way to monitor a number of P. xylostella is usage of traps with synthetic sex pheromone. The use of a mating disruption method allows lowering effectively a pest number and insecticide application. In 2017-2020, activity of pheromone and method of P. xylostella male disorientation were studied in rapeseed crops in the V.S. Pustovoit All-Russian Research Institute of Oil Crops, Krasnodar. The males of P. xylostella were caught in traps with all the studied types of dispensers. A pheromone demonstrated the highest activity on foil dispenser (F). The disorientation method decreased effectively a number of P. xylostella in rapeseed crops. By the end of the crop vegetation, the usage affect was high and reached 82.5%.