leafhoppers
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The present investigations show that Bt rice possesses high efficiencies for controling rice stem borer, yellow stem borer and rice leaf roller, and there are no significant differences in growth and development of non-target organisms, such as rice planthoppers, leafhoppers and predators, and the stability of arthropod community structure between Bt rice and conventional rice paddy habitats.
现有的研究表明,Bt水稻对二化螟、三化螟和稻纵卷叶螟等主要靶标害虫具有较高的抗性水平,对稻飞虱、叶蝉、捕食性天敌等非靶标生物的生长发育和稻田节肢动物群落的稳定性无明显影响。
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The dominant insect pests were grasshoppers, leafhoppers, and planthopper on poorly-managed lawns, but Laodelphgax striatellus, Cicadella viridis, Agrotis ypsilon, Rutelidae on well-managed lawns.
粗放管理草坪主要优势害虫有蝗虫类、叶蝉类和飞虱类;而精细管理草坪害虫主要有灰飞虱、大青叶蝉、小地老虎和丽金龟科。
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The results showed: after local leafhoppers were inoculated with RDV- SX isolate, RDV- LQ isolate, the vector viruliferous rates were similar as 84 % and 75% respectively,but the rice incidence rates were dissimilar as 28.1% and 2.8 % respectively.
研究表明:用本地黑尾叶蝉分别接种RDV本地分离物和云南分离物,斑点杂交显示介体带毒率相似,分别为84%、75%,但生物学接种结果差异相当大,分别为28.1%,3.8%,另外斑点杂交显示云南病区的黑尾叶蝉带毒率为88%,说明介体叶蝉的传毒能力具有地域性,介体叶蝉带毒率与传毒能力也存在一定差异。
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Related to the leafhoppers and spittlebugs but rarely damages cultivated plants.
与叶蝉和沫蝉有关但对栽种的植物很少破坏。
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Leafhoppers and aphids available 40 per cent of Dimethoate emulsion 2000 times the liquid or 25% speed off Wales WP 1000 times liquid spray control.
叶蝉和蚜虫可用40%乐果乳剂2000倍液或25%速灭威可湿性粉剂1000倍液喷雾防治。
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leafhoppers:叶蝉
leaf rollers 卷叶蛾 | leafhoppers 叶蝉 | leafminers 潜叶蝇