1. Longicorn beetles are a group of important pests of forest, ornamental and fruit trees.
天牛是鞘翅目中为害林木、园林绿化树木和果树的一类重要钻蛀性害虫。
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2. The growth and development of longicorn larvae were obviously affected by different tree species.
不同树种对天牛幼虫的生长发育影响十分显著。
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3. The method for extraction genomic DNA from insect sample, such as ants, longicorn beetles and grasshoppers, which stored in formalin or 75% ethanol for 2~4 weeks, is described.
4. The experiment aims to investigate the occurrence and harm of longicorn (Anoplophora chinensis Forster ) to orange orchards, and to find out the methods of controlling longicorn.
在柑桔园，通过对星天牛的发生规律和危害特点的系统调查和研究，找出了防治星天牛危害柑桔树的具体方法。
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5. The spread of the disaster caused by longicorn beetle has not only endangered forestry, but also become a menace to the Yellow River agriculture which largely depends on ecological environment.
近年来，宁夏天牛蔓延成灾，危及林业，对依托于生态环境的黄河农业已构成威胁。
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6. The spread of the disaster caused by longicorn beetle has not only endangered forestry, but also become a menace to the Yellow River agriculture which largely depends on ecological environment.
