Field trials on mass trapping for the control of the oriental fruit moth grapholitha molesta with synthetic sex pheromone
Ye M X.
Acta Entomologica Sinica 28(2): 142-147
Sex pheromone mass trapping trials for the control of the oriental fruit moth, Grapholitha molesta Busck, were conducted in pear orchards in Suzihong County of Liaoning Province [China] from 1981-1982. The mass-trapped areas were about 4,000 and 5,400 hectares in 1981 and 1982, respectively. Fifteen traps per hectare with the synthetic sex pheromone of the oriental fruit moth were used in the field trials. In the chemical control areas, two insecticidal treatments were applied to control the oriental fruit moth in August and September, while no insecticide was used in the mass-trapped areas. Rates of the female mating in the mass-trapped areas were 74.2-82.9% lower than that in the chemical control areas. Rate of the eggs parasitized in the mass-trapped areas was 79.2% higher than that in the chemical control areas. Rates of the fruit damage in the mass-trapped areas were 50.30-72.8% lower than that in the chemical control areas.