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我区地处西北边疆,森林病虫的普查和病虫害的防治研究工作开展较晚,有些为害严重的病虫害至今未能得到控制,大量的森林保护工作急待进行,现将有关情况介绍于后。一、林木病虫发生情况我区按世界昆虫地理分布属于旧北区中亚细亚亚区。昆虫区系与华北、东北相似,与新疆、河西走廊有共同之处,但也有地区特点。根据调查资料初步检定整理出林木害虫、益
My area is located in the northwestern frontier, the survey of forest pests and pest control research carried out later, some serious pests and diseases have not been able to control, a large number of forest protection work in urgent need, the relevant information is introduced later. First, the occurrence of forest pests My area according to the geographical distribution of insect insects belong to the old North Central Asia sub-region. Insect fauna and North China, northeast similar to Xinjiang, Hexi Corridor have something in common, but there are also regional characteristics. According to the preliminary verification of the survey data to sort out forest pests, benefits