套袋后易发生的虫害主要是黄粉虫、梨木虱、还有康氐粉蚧等。黄粉虫也称黄粉蚜,属同翅目、瘤蚜科,最适宜于袋内阴湿环境繁殖和生活,以若虫和成虫进入袋内,直接在扎口处为害肩部,被害处初呈褐色圆形或月牙形小斑点,随后腐烂,严重时造成落果;梨木虱属同翅目,梨虱科,可隔袋为害和 Pest prone after bagging is mainly Tenebrio, pear psylla, as well as Kang Ke mealybugs and so on. Tenebrio molitor also known as yellow aphid, belonging to the Homoptera, Aphididae, the most suitable for the bag breeding and living in the damp environment, with nymphs and adults into the bag, directly in the tie at the victim shoulder, the first victims were brown Round or crescent-shaped spots, followed by decay, severe decay caused; pear psittaci is Homoptera, pear lice, can be separated bag damage and