摘要
杨干象是杨树重要的蛀干害虫,为全国性森林植物检疫对象。为及时准确地测报其发生期、发生量,对多年实践经验及测报方法进行总结和完善,提出杨干象预测预报技术,为生产防治提供科学依据。
Cryptorrhynchus lapathi is an important trunk borer of poplar and nationwide object of forest plants quarantine.In order to predict the occurring period and quantities timely and accurately,the actual experience and prediction methods were summarized and improved,predictions and forecasts techniques were put forward,this provided scientific basis for prevention and control.
出处
《辽宁林业科技》
1999年第6期36-38,共3页
Liaoning Forestry Science and Technology
关键词
杨干象
预测预报
虫情调查
杨树
蛀干害虫
Crytorrhynchus lapathi,predictions and forecasts,survey of insect conditions.
