用性信息素诱捕法防治梨小食心虫的研究

用性信息素诱捕法防治梨小食心虫Grapholitha molesta(Busck)的试验于1978—1980年在辽宁省绥中县的梨园中进行。1978、1979和1980三年的诱捕防治面积分别为2、100和780公顷。在田间试验中每公顷使用10—15个梨小食心虫性信息素水碗诱捕器。在对照区,每年8月至9月喷2次杀虫剂防治梨小食心虫,在诱捕区不喷这两次药。 试验是成功的。1978、1979和1980年,诱捕区梨小食心虫的虫果率分别为1.4—4.4％、0.4—2.0％和0—1.2％,而化学防治对照区分别为7.6—8.6％、3.3％和0.3—2.7％。诱捕区梨小卵的寄生率为32.6—75.9％;在化学防治对照区只有10—26.6％。诱捕区的防治费用比化学防治区节省78—89％。

STUDIES ON SEX PHEROMONE MASS TRAPPING FOR CONTROL OF THE ORIENTAL FRIUT MOTH IN THEPEAR ORCHARDS

Sex pheromone mass trapping trials for control of the oriental fruit moth, Grapholitha molesta Busck, were conducted in the pear orchards of Suizhong County, Liaoning Province from 1978-1980. Mass-trapped area was 2 , 100 and 780 hectares in 1978, 1979 and 1980 respectively. 10-15 water bowl traps baited with the synthetic sex pheromone of the oriental fruit moth per hectare were used in the field trials. In the check area, two sprays of insecticides were applied for control of the oriental fruit moth from ...