整形修剪措施防治核桃小吉丁虫效果调查与分析

Impact of Training and Pruning on the Control of Agrilus lewisiellus

采取样地、样树调查,设置核桃小吉丁虫危害分级标准及危害等级值计算模型等方法,在宝鸡市千阳县进行了整形修剪防治核桃小吉丁虫试验,结果为整形修剪可使园地受害等级由轻微转变为无危害或受害等级值降低96%以上,受害枝率降低96.3%~100%,枝条受害斑点数减少97.3%~100%,整修修剪是一项防治核桃小吉丁虫的有效绿色技术。

Sampling plot combining with individual tree investigation were applied to research on the impact of training and pruning on the control of Agrilus lewisiellus Kere in Baoji. The damage grading system and grading model were applied. The result showed that training and pruning can lessen the damage by A. lewisiellus or free from the damage. Damaging value was reduced by over 96%, infected branches reduced by 96.3% to 100%, leaf spots reduced by 97.3%. So training and pruning are green techniques to control A. lewisiellus .