CAJ | 학술논문

采用梨小食心虫性诱芯诱集的方法,调查了河北鸭梨产区套袋鸭梨园与不套袋鸭梨园的梨小食心虫成虫的发生规律。结果表明：不套袋梨园的梨小食心虫数量明显〉套袋梨园,且各梨园梨小食心虫均世代交替现象严重。在套袋鸭梨园,虫果发生率较稳定;但在不套袋鸭梨园,虫果率迅速增长,至采收期高达91.7%。由此明确了鸭梨园套袋栽培模式对梨小食心虫生活史及其种群消长的影响,并提出了环保实用的防治方法。
채용리소식심충성유심유집적방법,조사료하북압리산구투대압리완여불투대압리완적리소식심충성충적발생규률。결과표명：불투대리완적리소식심충수량명현〉투대리완,차각리완리소식심충균세대교체현상엄중。재투대압리완,충과발생솔교은정;단재불투대압리완,충과솔신속증장,지채수기고체91.7%。유차명학료압리완투대재배모식대리소식심충생활사급기충군소장적영향,병제출료배보실용적방치방법。
The occurrence regularity of Grapholitha molesta adult in bagged and unbagged pear orchards of Hebei was investigated by the method of sex hormones of Grapholitha molesta.The results showed that the number of Grapholitha molesta in unbagged pear orchard was obviously more than that in bagged pear orchard,and the phenomenon of generations alternation of Grapholitha molesta was serious.In the bagged pear orchard,the occurrence of maggoty fruit was stable,while in the unbagged pear orchard,the occurrence of maggoty fruit was increasing rapidly,which could reach 91.7% at harvest time.Therefore,the influence of the bagged cultivation pattern on the life of Grapholitha molesta and its population dynamics were made clear,and the practical method of preventing and controlling environmental protection was put forward.