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thrips
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  蓟马
    FURTHER STUDIES ON THE PADDY THRIPS IN FUKIEN PROVINCE
    福建水稻蓟马的考察续报
短句来源
    STUDY ON THE POPULATION DYNAMIC OF RICE THRIPS BY APPLYING FUZZY CLUSTERING ANALYSIS
    模糊聚类分析在稻蓟马种群动态研究中的应用
短句来源
    Studies on Spatial Distribution and Sequential Sampling for Population of Thrips tabaci Lindeman in Tobacco Fields
    烟田烟蓟马种群空间分布型及序贯抽样技术的研究
短句来源
    INDENTIFICATION OF THRIPS IN QINLING MOUNTAIN
    秦岭山区蓟马种类识别
短句来源
    Studies on Population Dynamic State, Sampling Technique and Harmfulness Index of Mulberry Thrips (P. mori Niwa)
    桑蓟马种群动态、抽样技术及危害指标研究
短句来源
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  蓟马种类
    INDENTIFICATION OF THRIPS IN QINLING MOUNTAIN
    秦岭山区蓟马种类识别
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    A Preliminary Report on the Species of the Flower Thrips in Kunming District
    昆明地区花卉蓟马种类初报
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    Investigation on species and Host Range of The Spring Wheat Thrips in Huhhot
    呼市地区春小麦蓟马种类及寄主的调查
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    Studies on Species of Thrips in Fields of Vegetable in Wuhan Region
    武汉地区蔬菜蓟马种类研究
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    And the relationship between thrips and its host plant is discussed.
    并讨论了蓟马种类和寄主植物之间的关系;
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  “thrips”译为未确定词的双语例句
    Advances on the Western Flower Thrips(Frankliniella occidentals)
    西花蓟马(Frankliniella occidentalis)研究进展
短句来源
    Predation of Orius sauteri adult on adults of western flower thrips (Frankliniella occidentalis),an invasive insect pest
    东亚小花蝽(Orius sauteri)成虫对入侵害虫西花蓟马(Frankliniella occidentalis)成虫的捕食作用
短句来源
    Studies on Distribution and Control Tactics of Western Flower Thrips in China
    危险外来入侵生物-西花蓟马的分布现状与应急控制技术
    New records: (1)Thrips longiceps (Bagnall) n.
    中国新记录种:(1)Thrips longiceps (Bagnall) n.
短句来源
    (3)Thrips novocaledonensis (Bianchi) n.
    (3)Thrips novocaledonensis (Bianchi) n.
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  thrips
The Jurassic thrips Liassothrips crassipes (Martynov, 1927) and its taxonomic position in the order Thysanoptera (Insecta)
      
The Late Jurassic thrips Liassothrips crassipes (Martynov) is redescribed, and its taxonomic position discussed.
      
Therefore, the Liassothripidae shows the possible evolutionary pathway of tubuliferan thrips.
      
The efficacy of entomopathogenic nematodes (EPN) was evaluated in a laboratory trial against soil-dwelling stages, late second instar larvae and pupal stages of western flower thrips (WFT), Frankliniella occidentalis Pergande.
      
Efficacy of entomopathogenic nematodes against western flower thrips Frankliniella occidentalis at different pupation depths
      
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During the rice growing seasons in 1961, the authors conducted a series of ob-servations on the rice insect pests around the Dung-ting Lake of Hunan province. Atotal of 46 species of rice pests was found, the 45 insect species belonging to 18 dif-ferent families and 8 orders, the other pest belonging to order Oligochaeta. Amongthese pests, the rice stem borers (3 spp.), the leafhoppers (4 spp.), the grasshoppers(2 spp.), the rice leaf-rollers (2 spp.), the rice weevil (1 sp.), the leaf beetle (1 sp.),the thrips...

During the rice growing seasons in 1961, the authors conducted a series of ob-servations on the rice insect pests around the Dung-ting Lake of Hunan province. Atotal of 46 species of rice pests was found, the 45 insect species belonging to 18 dif-ferent families and 8 orders, the other pest belonging to order Oligochaeta. Amongthese pests, the rice stem borers (3 spp.), the leafhoppers (4 spp.), the grasshoppers(2 spp.), the rice leaf-rollers (2 spp.), the rice weevil (1 sp.), the leaf beetle (1 sp.),the thrips (2 spp.), and the Annelida (1 sp.), are considered as major pests of rice in thislocality. This paper not only deals with a comparison of the pest populations and com-munities between rice fields, planted to early rice, middle rice and late rice, but alsodeals with a similar comparison between the older and newer rice fields. The resultsmay be briefly summarized as follows: 1. In all the rice fields, the period of numerical summit of each insect populationdoes not appears at same time. 2. In all the rice fields, the important components of each insect community weredifferent. 3. In the older or newer rice fields, the communities and populations of rice insectpests were different. 4. Due to different history of the rice fields, different biological characters of theinsect pest, and different environment (climatic or dietary factors), the communities andpopulations of rice insect pests were also different. The causes of their difference weredescribed.

本文记述了1961年在湖南滨湖区水稻生长季节中每五日调查稻虫的结果。 查明该地区共有水稻害虫46种。田间虫口密度大小因稻田类型和季节的不同而异,早稻田和中稻田有7种害虫数量较大,一季晚稻田有9种,双季晚稻田有4种。 全年内各种主要稻虫种群数量高峰出现的时间、次数、以及峰态的高低均有不同。种群数量较大的害虫,依其高峰期出现的迟早顺序,有稻象虫、稻蝗、二化螟、褐稻虱、黑尾叶蝉、稻苞虫、三化螟和粉白飞虱等。 在不同历史条件的稻田里,稻虫群体组成及数量互有差异。老稻田稻虫种类较复杂,主要稻虫虫口密度较高。新开稻田稻虫种类较少(如颤蚓、三化螟等),而叶蝉和飞虱等较多。 分析了稻田历史条件、稻由生物学特性、还及气候和食料条件,对于稻虫群体组成及种群数量变动的影响。

This paper deals with the bionomics and controlling measures of the following three species of thrips infesting rice in Jin-bing: Thrips oryzae Williams, Frankliniella tenuicornis (Uzel) and Haplothrips aculetus (Fabricius). They are different in food habits: T. oryzae prefers tender rice seedlings while F. tenuicornis and H. aculetus prefer the flowers. Thus they cause different types of damage in the rice fields. Moderately high temperatures favor their multiplication but prolonged rainy periods...

This paper deals with the bionomics and controlling measures of the following three species of thrips infesting rice in Jin-bing: Thrips oryzae Williams, Frankliniella tenuicornis (Uzel) and Haplothrips aculetus (Fabricius). They are different in food habits: T. oryzae prefers tender rice seedlings while F. tenuicornis and H. aculetus prefer the flowers. Thus they cause different types of damage in the rice fields. Moderately high temperatures favor their multiplication but prolonged rainy periods and heavy rains have inhibitory effects. Their outbreaks in Kweichow Province were caused by the practice of double rice cropping or other complex agricultural systems. Their damages can be avoided by careful planning of the cropping systems so as to break their food chains. For chemical control of T. oryzae the appropriate time is at the seedling stage of three to four leaves and at the tillering stage. That for F. tenuicornis and II. aculetus is at late head bearing to heading stages.

本文探讨了我县为害水稻的三种主要蓟马——稻蓟马(Thrips oryzae Williams)、禾蓟马[Frankliniella tenuicornis(Uzel)]、稻管蓟马[Haplothrips aculetus(Fabricius)]的世代历期、寄主范围、繁殖和为害习性、发生规律及防治技术等。 稻蓟马主要在水稻秧田期及分蘖期发生为害,嗜食嫩绿稻苗。稻株受害后矮矬发黄,返青分蘖推迟,有效分蘖减少。禾蓟马、稻管蓟马偏嗜穗花,主要在水稻穗期为害,食害稻花,使颖壳变为褐色并成为空壳,双季晚稻空壳率一般达10—20%,最高达41%,直接引起产量损失。 从我县水稻蓟马发生为害的情况来看,初步认为,对水稻蓟马发生为害比较适宜的相对湿度范围在77—89%之间。在日平均温度为20—27.8℃的范围内,较高的温度对水稻蓟马的发生为害比较有利。降雨日多或降雨量大则抑制其为害。 我县推广双季稻和种植单季晚稻后,栽培制度复杂,插花混栽现象严重,是造成水稻蓟马近几年来加剧为害的主要原因。因此,在大力发展生产、推行改制的同时,还应注意全面规划,合理布局,改变插花混栽现象,使同一季稻、同一品种尽可能集中成片栽插,防止水稻蓟马在各类...

本文探讨了我县为害水稻的三种主要蓟马——稻蓟马(Thrips oryzae Williams)、禾蓟马[Frankliniella tenuicornis(Uzel)]、稻管蓟马[Haplothrips aculetus(Fabricius)]的世代历期、寄主范围、繁殖和为害习性、发生规律及防治技术等。 稻蓟马主要在水稻秧田期及分蘖期发生为害,嗜食嫩绿稻苗。稻株受害后矮矬发黄,返青分蘖推迟,有效分蘖减少。禾蓟马、稻管蓟马偏嗜穗花,主要在水稻穗期为害,食害稻花,使颖壳变为褐色并成为空壳,双季晚稻空壳率一般达10—20%,最高达41%,直接引起产量损失。 从我县水稻蓟马发生为害的情况来看,初步认为,对水稻蓟马发生为害比较适宜的相对湿度范围在77—89%之间。在日平均温度为20—27.8℃的范围内,较高的温度对水稻蓟马的发生为害比较有利。降雨日多或降雨量大则抑制其为害。 我县推广双季稻和种植单季晚稻后,栽培制度复杂,插花混栽现象严重,是造成水稻蓟马近几年来加剧为害的主要原因。因此,在大力发展生产、推行改制的同时,还应注意全面规划,合理布局,改变插花混栽现象,使同一季稻、同一品种尽可能集中成片栽插,防止水稻蓟马在各类稻田中不断转移繁殖,可以有效地减轻其为害。 药剂防冶试验表明,对稻蓟马的防治适期应掌握在秧田三至四叶期及水稻分蘖初期。对禾蓟马、稻管

In the citrus orchards in Canton suburbs the pradaceous mites, chrysops, mite-eating ladybird, certain species of thrips and spiders have been found to be the natural enemies of the citrus red mite Panonychus citri (McG.), among which Amblyseius newsami (Evens) is a domonant species and always outnumbers the others from 1.5 to 1 op to 4 to 1.Promising results have been obtained from the experimens of integrated control in 1975-76 by the utilization of the A. newsami as a principal controlling agent supplemented...

In the citrus orchards in Canton suburbs the pradaceous mites, chrysops, mite-eating ladybird, certain species of thrips and spiders have been found to be the natural enemies of the citrus red mite Panonychus citri (McG.), among which Amblyseius newsami (Evens) is a domonant species and always outnumbers the others from 1.5 to 1 op to 4 to 1.Promising results have been obtained from the experimens of integrated control in 1975-76 by the utilization of the A. newsami as a principal controlling agent supplemented with the application of small quantity of selective chemical insecticides and the implementation of agricultural techniques. By these measures the population of citrus red mite has been checked below the economic threshold and accordingly decreased the quantity of insecticides applied. The results of two years experiments indicated that this is a proper device for citrus red mite control.The shorter life cycle, the preference of preying upon the target mite, the poly-phagous habit and the coincidence in distribution with hosts are important features for A. newsami as an effective controlling agent. Moreover, the resistance of A. newsami to the pesticides such as Kelthane, lime-sulfur, Sevin, colloidal sulfur, BHE, DDT, Bassa, Topsin is quite advantageous to the integrated control of citrus insect pests.In the citrus orchards in Canton suburbs occurs the wild plant Ageratum cony-zoides Linn, the pollens of which as well as the Psocids on this plant are normally consumed by the predaceous mite. As this plant grows and blossoms in the orchards all the year round it seems to be important to maintain the population of the pre-daeeous mite.

在广州地区的柑桔园,柑桔红蜘蛛的天敌有捕食螨、草蛉、食螨瓢虫、塔六点蓟马和蜘蛛类等。其中钝绥螨占60—80%。经过两年的试验证明,以利用钝绥螨为主,少量使用选择性农药和加强田间管理的综合措施,是防治柑桔红蜘蛛行之有效的途径,可长期控制其数量在防治指标以下,化学农药的用量也相应大大减少。 钝绥螨具有发育历期短,嗜食柑桔红蜘蛛,食料范围广,在植株上的分布与猎获物相一致等优良特性,可取得理想的防治效果。钝绥螨对三氯杀螨醇、石硫合剂、西维因、胶体硫、六六六、滴滴涕、巴沙、托布津等化学农药具有不同程度的抗性。 柑桔园的一种杂草——藿香蓟对稳定钝绥螨的种群数量有着重要的作用,它的花粉和在叶上的啮虫的幼虫可作为钝绥螨的食料。

 
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