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life history and habits
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  生活史及习性
     A Preliminary Study of the Life History and Habits of Liposcelis Bostrychophilus Badonnel
     嗜卷书虱生活史及习性初步研究
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     OBSERVATIONS ON THE LIFE HISTORY AND HABITS OF INDIAN CABBAGE MOTH
     瓜绢野螟的生活史及习性观察
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     Life history and habits of woolly apple aphid (Homomptera:Aphididae) in Zhaotong city
     昭通市苹果绵蚜的生活史及习性
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     Morphological characters of this pest are described and the life history and habits are given in this paper.
     作者对其形态、生活史及习性作了系统观察研究,绘制了形态图。
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  “life history and habits”译为未确定词的双语例句
     This paper introduces the life history and habits of Northern China's larch casebearer in Shanxi province, and puts forward some comprehensive preventive measures.
     对华北落叶松鞘蛾在山西省的生活史及其生活习性作了介绍,并提出了综合防治措施。
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     Theauthor has reared this dragonfly for many years and reported the characteristicsof the nymph of every instar,its life history and habits. Especially the authordiscovered that its body is enveloped by a film when the first intar nymph emergesfrom the egg. About 4~80 seconds later,the film is broken and the second instarnymph emerges.
     经多年饲养,详细地观察了各龄稚虫的特征,它的全部生活史和生活习性,尤其是发现其一龄稚虫出卵壳后外面还有一层薄膜包围,历时4~80秒即破膜而出成为二龄稚虫,这是一种非常特殊的有研究价值的生物学现象,这在国内属首次报道.
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     LIFE HISTORY AND HABITS OF THE SPINY BOLL-WORM (EARIAS CUPREOVIRIDIS WALKER) IN SZECHUAN
     四川鼎点金钢钻(Earias cupreoviridis Walker)发生规律观察
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     A PRELIMINARY STUDY ON THE LIFE HISTORY AND HABITS OF Epilachna Clematicola (COLEOPTERA, COCCINELLIDAE)
     木通食植瓢虫Epilachna clematicola的生活习性研究初报
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     The authors introduced the life history and habits of two primary insects,Epilachna insignis Gorham and Apomecyna saltator Fabricius of Trichosanthes kirilowii in Xinyang city based on field investigating and indoor artificial feeding and the integrated control measures.
     通过对信阳栝楼地田间定点定时调查并辅以室内饲养,基本查明2种主要害虫菱斑食植瓢虫(Epilachna insignisGorham)和瓜藤天牛(Apomecyna saltatorFabricius)的生活史与习性,并提出了综合防治措施。
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     On traditional history and accomplishment of life
     论传统史学与人生修养
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     A study on the life history of T.
     95%rh. 条件下对腐食酪螨的生活史作了研究。
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     Life History of Monostroma latissimum
     宽礁膜的生活史(英文)
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     Life
     生命
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     The Protection of the History and Restoration of Life
     历史的保护与生活形态的重塑
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  life history and habits
Data about morphology, life history and habits ofGonionemus vertens A.
      
The life-history and habits of two parasites of blow flies.
      
Although it is a common parasite of both domestic and wild turkeys, its life history and habits are poorly known.
      


The injurious insects of cotton of this province, however, have not hithertobeen carefully studied, especially the pink bollworm, which annually reducesthe cotton production by 10 to 30 per cent. The present authors spent twoyears in observing the life history and habits of this insect, in attempting tofind some effective control measures. The result is herewith summarized :- 1. In the vicinity of Wu-chang, the pink bollworm has three generationsa year. The first generation occupies May and July. The second...

The injurious insects of cotton of this province, however, have not hithertobeen carefully studied, especially the pink bollworm, which annually reducesthe cotton production by 10 to 30 per cent. The present authors spent twoyears in observing the life history and habits of this insect, in attempting tofind some effective control measures. The result is herewith summarized :- 1. In the vicinity of Wu-chang, the pink bollworm has three generationsa year. The first generation occupies May and July. The second one occursin mid-July and the last in late-August. Due to the lower temperature, theemergence of the first generation need about two months. 2. In day time, the adult is usually inactive, while in windless night,after seven o'clock, it becomes very active and lays eggs mostly on green bollsand calyx. about a week later, the eggs hatch and the newly-hatched larvaeare shortly getting into the bolls. After four days they often eat into theseeds. Ten days later, the lint is so stunted as to become dusky yellow incolor, thus both the yield and the quality of cotton are greatly lowered. Themature larvae appear about half a month after. 3. Field experiments have shown that three dustings of 10% DDT- sulfurpowder were very effective. In the severely damaged cotton area, the thirdspray may be simultaneously done with controlling the cotton leaf-hoppers andthe cotton leaf-rollers. 4. About 84% hibernating larvae in cotton seeds will come out when thecotton exposed in sun light and stored in the farmer's house. Hence it seemsadvisable to put cloth or other soft material covers on the cotton stored inorder to collect and kill the larvae under them. In addition, destruction of allremaining bolls on the cotton stalks, as early as possible in winter is important. 5. For controlling the bollworms in cotton store-houses, the followingresults have been obtained 50% wettable DDT diluted with 20 parts of water,91% of larvae were killed within 30 days; 6.5% 666 (benzene hexachloride)gave a mortality of 63% in four months. Wettable 6.5% 666 diluted withwater (1:100), has been proved to be the most effective ovicide which destroys99.4% of eggs while parathion (E605) also gave a very high mortality at97.7%. But 50% wettable DDT (1:100) Kills eggs at 64.2% and lead arsena-te only 16.2% respectively. 6. There were 39.1% overwintering larvae parasitized by parasitic mitesand wasps. Among them, most are the mite, Pediculoides ventricosus Newport,while the parasitic wasps Eurypterna arakawae Mats. less than 0.5%.

红铃虫在南方棉区为害棉花相当严重,除去脱落蕾铃外,僵黄花率为10—30%,我们针对这个严重问题,进行了红铃虫生活史的观察研究与防治方法试验,写出初步结果,提供防治参考。 1.红铃虫在华中武昌棉区一年有三代。第一代羽化在5至6月,7月中旬为第二代;8月下旬为第三代;第一代的蛹和幼虫所需时期均较第二、三代长。 2.成虫白天不活动,夜晚7时以后无风天气活跃最盛,产卵以在青铃上及花萼上为最多。孵化后三十多分钟即钻入棉桃内为害,4天即侵入棉籽内取食,10天棉瓤纤维呈僵黄状,半月后幼虫即可老熟(第三代的)。 3.田间防治红铃虫以10%滴滴涕硫磺粉喷三次效果显著,在后期棉虫严重地区可结合防治叶跳虫卷叶虫等同时进行。 4.籽花内的幼虫在群众家里及晒花时逃出84%,因此指导群众将籽花堆上加覆盖物,再结合帘架晒花是消减过冬红铃虫最经济有效的办法。 4.防治仓库越冬红铃虫以50%可混性滴滴涕1:30倍水溶液杀虫效果最佳。30天内死亡率达91%.6.5%可混性666(1:20)死亡率为63%。但是1:100倍的水溶液杀卵效率高到99.4%。稀释万分之一的E605为97.7%。50%可混性滴滴涕1:100杀卵率为64.2%,砒酸铃最差...

红铃虫在南方棉区为害棉花相当严重,除去脱落蕾铃外,僵黄花率为10—30%,我们针对这个严重问题,进行了红铃虫生活史的观察研究与防治方法试验,写出初步结果,提供防治参考。 1.红铃虫在华中武昌棉区一年有三代。第一代羽化在5至6月,7月中旬为第二代;8月下旬为第三代;第一代的蛹和幼虫所需时期均较第二、三代长。 2.成虫白天不活动,夜晚7时以后无风天气活跃最盛,产卵以在青铃上及花萼上为最多。孵化后三十多分钟即钻入棉桃内为害,4天即侵入棉籽内取食,10天棉瓤纤维呈僵黄状,半月后幼虫即可老熟(第三代的)。 3.田间防治红铃虫以10%滴滴涕硫磺粉喷三次效果显著,在后期棉虫严重地区可结合防治叶跳虫卷叶虫等同时进行。 4.籽花内的幼虫在群众家里及晒花时逃出84%,因此指导群众将籽花堆上加覆盖物,再结合帘架晒花是消减过冬红铃虫最经济有效的办法。 4.防治仓库越冬红铃虫以50%可混性滴滴涕1:30倍水溶液杀虫效果最佳。30天内死亡率达91%.6.5%可混性666(1:20)死亡率为63%。但是1:100倍的水溶液杀卵效率高到99.4%。稀释万分之一的E605为97.7%。50%可混性滴滴涕1:100杀卵率为64.2%,砒酸铃最差为16.2%。 6.越冬幼虫被寄生的平均有39.1%,发现天敌有二种,其中绝大多数是榖痒螨(Pediculoides ventricosus

The pasture tick, Dermacentor nuttalli Ol., is a common species of Ixodid foundin Inner Mongolia Autonomous Region. It occurs also in the steppes of the north-west,north-east and northern parts of China. In nature, the adults generally feed on largeanimals such as, cattle, horses, camels, sheep and goats, and occasionally attack alsohares, dogs and man; while the larvae and nymphs feed almost exclusively on smallmammals such as, field mice, hamsters, weasels, hares, cats and dogs. In the field, the adults are...

The pasture tick, Dermacentor nuttalli Ol., is a common species of Ixodid foundin Inner Mongolia Autonomous Region. It occurs also in the steppes of the north-west,north-east and northern parts of China. In nature, the adults generally feed on largeanimals such as, cattle, horses, camels, sheep and goats, and occasionally attack alsohares, dogs and man; while the larvae and nymphs feed almost exclusively on smallmammals such as, field mice, hamsters, weasels, hares, cats and dogs. In the field, the adults are active mainly from March to June, and the most seriousinfestation occurs from the end of March to the end of April. They are active also inthe autumn, since a small number of them are usually found on their hosts after August.The larval activity extends from the beginning of June to the beginning of August, butit occurs most often on the hosts from the end of June to the beginning of July. Thenymphs are active from the end of June to the middle of August, but they are mostabundant on their hosts in the middle and latter part of July. The above-mentioned factsindicate that the life cycle of this tick is completed in one year. Copulation takes place on the hosts, and the males tend to wander aboutand may copulate with several females. The length of the engorgement periodof the females feeding on cattle is 8--10 days, usually 9 days. Egg laying begins,depending upon temperature, 3--25 days after the fecundated and fully fed females havedropped to the ground. The oviposition period extends for 31--44 days. During theperiod, 6,995 to 10,549 or on average 8,384 eggs may be laid by a single female. Afteroviposition has been completed, the females die in 4—13 days (usually 7 or 8 days).The incubation period of eggs lasts for 15--36 days, depending upon temperature, andthe emerged larvae are ready to feed 3 or 4 days after. Their feeding lasts for 2--3days on rabbits and moulting takes place 8--12 days, but mostly 9 or 10 days afterleaving the hosts. The emerged nymphs start to feed after 2 or 3 days, and their feed-ing lasts for 7--8 days on rabbits. They transform into adults after they havedropped to the ground for 14—20 days (usually 17 or 18 days). Thus, the time whenthe females have started to feed until the adults of the next generation emerge, lasts for62 to 121 or on average 108.5 days. With regard to the habitat, this tick prefers to live on the arid area where the xero-philous plants grow. Under natural conditions, this tick overwinters as unfed adults ofeither sex. Most of them hide in the nooks and crannies of the steppe vegetation, butonly a small number of them are found on their hosts. The longevity of the unfedadults lasts about one year since they may live until the end of next July. Thelarvae and nymphs live about 3--4 months as they could not tolerate the hardness ofwinter. Basing upon its life history and habits, control measures against this tick are sug-gested.

纳氏矩头蜱是典型的草原种类,其分布遍及内蒙古、西北、东北、华北等牧区。它属于三宿主类。成虫主要寄生在各种大牲畜,幼虫和若虫寄生在草原上的野鼠类和其它小动物。在自然界一年发生一代。成虫的活动季节主要在春季,但寄生数量以3月下旬至4月下旬最多;在秋季也有极少的成虫侵袭牲畜,但在宿主上过冬而不吸血。绝大多数的个体则以饥饿成虫在草原上过冬。幼虫的寄生季节是在6月上旬至8月上旬,而6月下旬及7月上旬,其寄生数量最多。若虫从6月下旬至8月中旬寄生于宿主,但出现盛期在7月中、下旬。 本种蜱发育周期的长短因气温不同而异。雌蜱当以牛饲养,吸血8-10日;饱食落地后3-25日开始产卵,产卵期31-44日,每一蜱产卵6995-10549粒;卵期15-36日;幼虫孵出后3-4日开始摄食,当以兔饲养,吸血2-3日,落地后8-12日变为若虫;若虫在出现后2-3日开始摄食,当以兔饲养,吸血7-8日,经过14-20日变为成虫。自雌蜱开始吸血至下一代成虫出现,总共需要62-121日,平均需要108.5日。 本种蜱的分布密度因自然条件不同而异。一般在干旱的半荒漠草原地带数量较多,而在潮湿低洼的草原地带数量则相当少。成虫的寿命长约一年,越冬后的饥...

纳氏矩头蜱是典型的草原种类,其分布遍及内蒙古、西北、东北、华北等牧区。它属于三宿主类。成虫主要寄生在各种大牲畜,幼虫和若虫寄生在草原上的野鼠类和其它小动物。在自然界一年发生一代。成虫的活动季节主要在春季,但寄生数量以3月下旬至4月下旬最多;在秋季也有极少的成虫侵袭牲畜,但在宿主上过冬而不吸血。绝大多数的个体则以饥饿成虫在草原上过冬。幼虫的寄生季节是在6月上旬至8月上旬,而6月下旬及7月上旬,其寄生数量最多。若虫从6月下旬至8月中旬寄生于宿主,但出现盛期在7月中、下旬。 本种蜱发育周期的长短因气温不同而异。雌蜱当以牛饲养,吸血8-10日;饱食落地后3-25日开始产卵,产卵期31-44日,每一蜱产卵6995-10549粒;卵期15-36日;幼虫孵出后3-4日开始摄食,当以兔饲养,吸血2-3日,落地后8-12日变为若虫;若虫在出现后2-3日开始摄食,当以兔饲养,吸血7-8日,经过14-20日变为成虫。自雌蜱开始吸血至下一代成虫出现,总共需要62-121日,平均需要108.5日。 本种蜱的分布密度因自然条件不同而异。一般在干旱的半荒漠草原地带数量较多,而在潮湿低洼的草原地带数量则相当少。成虫的寿命长约一年,越冬后的饥饿成虫可以生活到7月底;但饥饿幼虫和若虫约生活3-4个月,入冬后它们就死亡。 根据生物学的研究,对本种?

The present paper has reported the observations on the life history and habits of Misumenopo tricuspidatus in Hubei Province in detail.

1.粽管巢蛛是湖北省分布较广,种群数量较大的一种蜘蛛,能捕食农作物上的多种害虫,有一定的利用前途。 2.粽管巢蛛在湖北省一年发生2—3个世代,成蛛和若蛛均可越冬。有一次交尾,多次产卵的习性。未经交尾的雌蛛虽能产卵但不能孵化,雌蛛有护卵习性。一生卵量在300粒左右。抗寒和耐饥能力较强。 3.在常用农药中,以保棉丰,毒杀芬,4049,亚胺硫磷对粽管巢蛛杀伤力最强;石硫合剂,杀虫脒较为安全。

 
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