中国梨木虱入袋消长规律与为害特性的研究  

Studies on the damage character and dynamic of Psylla chinensis to bagged Ya pear fruit

作　　者：褚凤杰[1] 周志芳[1] 刘雪春[2] 刘国胜[1] 徐国良[1] 于利国[1] 

机构地区：[1]河北省农林科学院石家庄果树研究所,河北石家庄050061 [2]河北农业大学,河北保定071001

出　　处：《河北农业大学学报》2003年第3期89-92,共4页Journal of Hebei Agricultural University

摘　　要：对套袋梨果主要害虫———中国梨木虱入袋消长规律与为害特点进行了系统的调查。结果表明 ,其入袋消长的始、盛、末期分别在 5月中旬、6月上中旬、8月中旬至 9月中旬 ;入袋后对果面为害造成的斑点出现始盛期分别在 5月下旬和 6月下旬至 7月上中旬。套袋与不套袋相比 ,该虫入袋上果的时间提前 1 0～ 1 9d ;虫量平均增加 1 3倍 ;由为害叶变成为害梨果的主要害虫之一。该虫对套袋梨果的为害途径除直接为害外又增加了间接为害 。A detailed study on the damaged characters and dyn am ic rules of Psylla chinensis of bagged Ya pear was carried out . The result showed that the beginni ng, the middle and the ptelophase periods for the P. chinensis into bags were separately at the middle of May, early June and from middle August to middle S eptember;the damage spots on the fruits separately appears at the late of May, late June and early June. Campared to the aoked fruits, the intrusion time was 1 0～19 days earlier;the population is 13 times higher;the P chine nsis become one of the most important fruits pest from a leaf pest. Ap art from direct damages to the fruit, the P chinensis can also cause indire ct damages to the pear fruit, and the symtons were changed observably.

关 键 词：中国梨木虱 消长规律 为害特性 为害途径 受害症状 

分 类 号：S436.612[农业科学—农业昆虫与害虫防治]