1) insect pest in pine stand
松林害虫
2) Dendrolimus punctatus damage
松毛虫害
3) forest pest
森林害虫
1.
Developmental process of forest pest management and research direction in China;
森林害虫治理的发展过程和研究方向
2.
The paper presents some main achievements made in the reserch of preventing the forest pest in Longdong,especially in Qingyang since 1980 from the aspects of insect variety and fauna,bionomics,ecology and control techniques.
从种类、区系、生物学特性、生态学和防治技术及对策4个方面综述了陇东尤其是庆阳市1980年以来森林害虫防治研究取得的主要成果。
3.
Research progress in economic thresholds of several major forest pests such as Dendrolimus punctatus Walker,Anoplophora nobilis Ganglbauer and Gravitarmata margarotana(Hein) are discussed extensively from the aspects of endangered position,tree species harmed by forest pests,locations of pest damage occurrence and control indexes.
从我国森林害虫危害部位、危害树种、发生地区、防治指标等方面着手,对马尾松毛虫、黄斑星天牛、油松球果小卷蛾等主要森林害虫经济阈值研究的状况进行了综合评述,全面概括了害虫防治经济阈值的研究进展情况,针对害虫不同发生地区,提出了合理的害虫防治指标,总结出人工模拟危害及害虫直接危害二种害虫研究方法。
4) Forest Pest
森林虫害
1.
A Meteorological Forecast Model for Forest Pests in Western Chongqing;
渝西地区森林虫害的气象预报模型
5) forest pests
森林害虫
1.
Application of Jiaduo frequency vibration pest - killing lamp on monitoring forecast of forest pests during occurrence period;
佳多频振式杀虫灯在森林害虫发生期监测预报上的应用
2.
Control technique of forest pests by light airplane;
轻型飞机防治森林害虫技术
3.
Studies on the control effect and economic benefit of controlling forest pests by Haiyan ultralight plane;
应用“海燕”超轻型飞机防治森林害虫的效果及经济效益的评估
6) forest pest
林木害虫
1.
An important forest pest-Arhopalus rusticus captured in Fuzhou Port;
福州口岸截获重要林木害虫——褐梗天牛
补充资料：平地松林
在今内蒙古克什腾旗一带，南至河北围场以北，为奚、契丹族活动的地方。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条