果实套袋是提高果品品质的一个重要途径,梨果套袋后,能明显改善果实外观,增加果皮光洁度,提高果品等级。但是,梨果套袋后,也为梨黄粉虫的生长繁衍提供了有利的栖息场所。当梨黄粉虫入袋后,药剂难以融及,防治更加困难,应提早防治:1 套袋前喷杀虫剂 套袋处理的果实,要求果实上无虫。套袋前对树体喷药,防治梨黄粉虫。喷药时注意药一定要喷细密,梨果表面要沾湿药液,喷药后及时安排套袋,喷药套袋二者间隔不宜过长,否则容易降低药效。药剂 Fruit bagging is an important way to improve the quality of fruit. After bagging, the fruit bag can obviously improve the appearance of fruit, increase the skin finish and improve the fruit grade. However, pear bagging, but also for the growth and reproduction of pear mealworms provide a favorable habitat. When the pear mealworms into the bag, the medicament difficult to integrate, prevention and control more difficult, should be early prevention and treatment: a bag of insecticide bagging bagged fruit before processing, requires no insects on the fruit. Bagging the tree before spraying, control pear mealworms. Attention when spraying medicine must be sprayed dense, pear fruit surface to wet the liquid, spray bag timely arrangement, the interval between the two should not spray too long, otherwise easy to reduce the efficacy. Pharmacy