几项技术措施对桃园越冬代梨小食心虫的防治效果

刮树皮、绑诱虫带、清洁果园以及覆土是防治越冬代梨小食心虫的主要技术措施，但缺少系统的定量化评价，在生产上未得到广泛应用。针对这一情况，以不同熟期的桃树为试材，对这几项技术措施的梨小食心虫防治效果进行了调查。结果表明，刮树皮对越冬代梨小食心虫的防治效果为88.64%，是防治桃地上部梨小食心虫效果最好的技术措施；绑草把诱虫带的防治效果为74.13%，是防治越冬代梨小食心虫最经济、有效的技术措施；3月中旬地表覆土3 cm可阻止土中越冬茧羽化出土；清除地面枯枝可防治地表的越冬幼虫。

Control Effects of Several Technical Measures on Overwintering Generation of Oriental Fruit Moth in Peach Orchard

Peeling trunk, binding insect-attracting belt, cleaning orchard and soil-cov-ering under the crown were the control methods on overwintering generation of ori-ental fruit moth.However,they had not been applied widely on the production be-cause of the lack of systematic quantitative evaluation. Aiming at this fact, the con-trol effects of these technical measures were studied in peach with different ripening period. The results showed that peeling trunk was the best with the control effect of 88.64%.The control effect of binding insect-attracting belt of grass bundle was 74.13%,which was the most economical and efficient. Covering with soil layer of 3 cm under the crown during the middle ten days of March could holdback the adult getting out from soil. Cleaning deadwood could clean out the overwintering larvae on the ground.