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- European moth introduced into North America; a serious pest of shade trees. 引入北美洲的欧洲蛾子;是能遮荫的树的严重的害虫。
- a serious pest of shade trees 能遮荫的树的严重的害虫
- Species (Lymantria dispar) of tussock moth, a serious pest of trees. 鳞翅目毒蛾科昆虫。
- The sweetpotato whitefly (Bemisia tabaci) is a serious pest of China. 烟粉虱(Bemisia tabaci)在中国是一种危害严重的害虫。
- Parasitic forms are found in the roots of many plant species;the potato-root eelworm, for example, is a serious pest of potatoes. 寄生种类见于多种植物的根部,如马铃薯根线虫(potato-root eelworm),是马铃薯的重要害虫。
- Anastatus japonicus Ashmead is an egg-parasite which can be used to control effectively the-stink bug Tessaratvma fapillosa Drury, a serious pest of litchi and longan. 本文报道用人造寄主卵繁殖平腹小蜂Anastatus japonicus Ashmead~(***)成功的结果。
- An Old World beetle (Oulema melanopus) now found in the United States, where it is a serious pest of grain crops as a result of its consumption of cereal grasses. 橙足负泥虫,黑角负泥虫:一种东半球甲虫(黑角负泥虫禾谷负泥虫属),现发现于美国,以谷类作物为食,是危害严重的害虫
- larva of the European corn borer moth; a serious pest of maize 欧洲玉米蛀虫蛾子的幼虫;玉米的一种严重的害虫
- larva of the European corn borer moth; a serious pest of maize. 欧洲玉米蛀虫蛾子的幼虫;玉米的一种严重的害虫。
- Here she had a comfortable back room, looking over a collection of back yards in which grew a number of shade trees pleasant to see. 她在这里有一间舒适的后房间,能看见下面的很多后院,院子里种着一些遮阴的树木,看上去十分宜人。
- The paper uses the geometric and radiometric characteristics of shade trees in high-resolution satellite images to solve this problem. 针对这个问题文章进行了研究,提出了在高分辨率彩色卫星影像中使用行道树信息的光学特性和几何特性共同来进行道路提取。
- The poor man has a serious disease of the liver. 这个可怜的人患有严重的肝病。
- ConoPomorpha sinensis Bradley is the serious pest of litchi and longan in South andCentre of Fujian Province,China. 爻纹细蛾(ConopomorphasinensisBradley)是福建南部,其次中部,荔枝、龙眼的重要害虫。
- He had a serious congestion of the lungs. 他得了严重的肺充血。
- Tall perennial grass that spreads by creeping rhizomes and is grown for fodder,naturalized in southern United States where it is a serious pest on cultivated land. 高大的多年生草本植物其延伸靠爬行功能的根状茎,栽培用于饲料,植入美国南部,在农田中成为一种严重的恶性杂草。
- Eurasian elm often planted as a shade tree. 生长于欧亚的一种榆树,通常作为绿荫树种植。
- Bemisia tabaci (Gennadius) is an serious pest of cotton and horticultural crops, which has been reported to distribute over 90 countries in the world except Antarctica. 烟粉虱Bemisia tabaci(Gennadius)属同翅目,粉虱科,小粉虱属,广泛分布于全球除南极洲外各大洲的90多个国家和地区,是棉花、蔬菜和园林花卉等植物的主要害虫之一。
- News is coming in of a serious train crash in Scotland. 刚刚收到的消息说,苏格兰发生火车撞车重大事故。
- Widely cultivated as a shade tree. 广泛栽培作为一绿荫树。
- Bemisia tabaci (Genn.) is a serious insect pest of many crops throughout the tropics and subtropics. 本研究在调查了烟粉虱Bemisia tabaci (Gennadius)种群分布规律的基础上,从37种常见植物中筛选出15种对烟粉虱成虫产卵驱避作用效果较好的植物次生物质,并运用生命表方法、种群趋势指数和种群干扰作用控制指数等方法进一步对其评价。