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- Abstract: Agasicles hygro phila is a hollow philoxeroides important natural enemies of insect feeding exclusively. 摘 要 : 空心莲子草叶甲是空心莲子草重要的专食性天敌昆虫。
- Resources of natural enemies of insect pests in apple orchard were systemally studied in apple orchards in Shanxi province. 摘要对陕西不同地区苹果园天敌昆虫进行了调查研究,结果获得天敌昆虫17种,隶属于8目11科。
- On the Use and Protection of the Natural Enemies of Insect Pests in the Seed Stands of Picea crassifolia 青海云杉母树林害虫天敌资源及保护利用
- Birds are the natural enemies of many insect pests(= they kill them). 鸟类是许多害虫的天敌。
- natural enemies of insect 天敌昆虫
- natural enemies of insect pests 天敌昆虫
- The owl is the natural enemy of mice and rats. 猫头鹰是鼠类的克星。
- These small insects must be destroyed.Rachid Hanna advises farmers to use biological controls such as natural enemies of the aphids. 他建议农民们采用如蚜虫的天敌这样的生物手段来消灭它们。
- The results showed that the insect pest h ad eight generations or so annually in Baishan and overwinters as pupa in greenh ouse.Three natural enemies of parasitism were discovered as well. 该虫在白山地区以蛹在温室内越冬,一年约发生8代,还发现了3种寄生性天敌。
- The forestry administration says it plans to launch an extermination campaign that includes insecticides and natural enemies of the moths. 国家林业局说,计划进行灭虫运动,包括使用农药和白蛾的天敌。
- natural enemy of insect 天敌昆虫
- Hurry up and grow! Workers at Taiwan Sugar raise natural enemies of the sugarcane borer. 但愿虫快长大!糖厂工人把米虫卵撒在米上。
- Results The results showed that Type-C botulin had high safety without killing natural enemies of rodent. 结果C型肉毒毒素有很高的安全性,不伤害鼠类天敌;利用0。10%25、0。15%25、0。
- Rachid Hanna advises farmers to use biological controls such as natural enemies of the aphids. 拉齐德汉纳建议农民们采用诸如引入蛀虫天敌的生物控制方法。
- Most members of the shielding species are harmful but the Chinese predatory stinkbug is the natural enemy of many injurious insects. 蠋蝽是蝽的一种。蝽有多种,多为害虫,而蠋蝽却是多种害虫的天敌。
- One potentially cheap and self-sustaining method of halting the spread of bracken is to introduce natural enemies of the plant. 一种廉价的能终止欧洲蕨蔓延且能自我维持的潜在方法就是引进该植物的天敌。
- She heard nothing but the chirps and whirrs of insects. 除了虫的鸣叫声外,她什么也没听见。
- The results indicated that Coccinellidae and Chrysopidae as primary natural enemies of Aphis gossypii significantly reduced the aphid population in self-controlled cotton field. 结果表明,不施药棉田中草蛉和瓢虫对棉蚜有着良好的自然控制能力;
- A chemical agent that kills eggs, especially the eggs of insects. 杀卵剂一种杀死卵的化学药剂,尤指杀死虫卵的杀虫剂
- All around was a drowsy hum of insects. 到处是一片小虫的催眠似的嗡嗡声。