Field Evaluation on Control of Grapholitha molesta Busck by High Dose Sex Pheromone Release for Mating Disruption in the Orchard

doi:10.16409/j.cnki.2095-039x.2020.06.025

Abstract

Abstract: Pheromone release dose is the key to control of Grapholitha molesta Busck through mating disruption. The control efficacy and its longevity period of solid pheromone dispenser (SPD) and high dose pheromone aerosol puffer (HDPAP) against G. molesta were measured to explore the application of new material and controlled release technology in mating disruption control of pests. The results showed that moth catches at 18:00—20:00 accounted for 93.7% of the whole day's catches, and the green trap was more suitable for monitoring the occurrence of G. molesta in the orchard. The average moth catch in the conventional control area was 42.13, and the average fruit-boring rate was 2.64%. In contrast to the conventional control area, the average moth catch in the area treated with the new material SPD and HDPAP was 1.00 and 5.31, respectively, the mating disruption rates were 97.96% (91.84%—100%) and 91.41% (70.86%—98.28%), respectively, and the fruit-boring rates were 0.81% and 0.95%, respectively. During the fruit harvest in August, the control efficacies of fruit-boring were 85.79% and 77.16%, respectively. The longevity period of the control reached more than 6 months.

Key words: Grapholitha molesta, sex pheromone, mating disruption, solid pheromone dispenser, high dose pheromone aerosol puffer

CLC Number:

S476

FENG Chuanhong, ZHANG Zhidong, XU Xiang, TIAN Hui, YANG Songjie, HU Tao, ZENG Wei. Field Evaluation on Control of Grapholitha molesta Busck by High Dose Sex Pheromone Release for Mating Disruption in the Orchard[J]. Chinese Journal of Biological Control, 2020, 36(6): 946-953.

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