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pupa
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    AN EASY METHODFOR POPULATION DENSITY ESTIMATION OF DENDROLIMUS TABULAEFORMIS PUPA
    油松毛虫种群密度简易估计方法的研究
短句来源
    The threshold temperatures and the effective accumulated temperatures required for egg, larva, pupa and whole generation were 10.9℃, 11.1℃, 12.5℃, 10.6℃ and 40.9, 110.3, 39.7, 359.4 degree-day, respectively.
    卵、幼虫、和世代的发育起点温度分别为10.9℃,11.1℃,12.5℃和10.6℃,有效积温分别为40.9,110.3,39.7,359.4日. 度。
短句来源
    The results showed that the mortality rate of H. armigera larvae was significantly higher while pupa weight and adult emergence were significantly lower than the control when the larvae fed on the diet containing the extract of E. adenophorum at the concentrations of 0.088,0.44,2.2 and 11 g/kg.
    结果表明,当给棉铃虫幼虫饲喂含紫茎泽兰提取物浓度分别为0.088、0.44、2.2和11g/kg的饲料时,棉铃虫的死亡率显著高于对照,而羽化率和重均显著低于对照(P≤0.05)。
短句来源
    The results showed that the mortalities of egg,larva,pupa and adult of this pest in fields were 42.7%,14.5%,4.4% and 12.6% for the first generation,and 32.8%,16.5%,18.9% and 15.6% for the second generation,respectively.
    结果表明:自然条件下,1、2代稻秆潜蝇的卵、幼虫、、成虫死亡率分别为42.7%、14.5%、4.4%、12.6%和32.8%、16.5%、18.9%、15.6%。
短句来源
    Results of rearing the predatory bugs with same kind of diet during their whole development period (nymphal and adult stages) showed that, adult yield rate was 92.2 %,83.3% and 87.3 % respectively when nymphs fed on peach aphid, Trichogramma pupa or whitefly diet, which showed no significant difference.
    在小花蝽生长发育全过程中,用桃蚜、赤眼蜂和温室白粉虱3种饲料饲养,东亚小花蝽成虫获得率分别为92.2%、83.3%和87.3%,差异不显著;
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  “pupa”译为未确定词的双语例句
    Nymphal duration of female Orius fed on peach aphid was 11.3d, which was significantly shorter than that fed on Trichogramma pupa (11.9d) or whitefly (12.0d).
    若虫发育至雌成虫的历期分别为11.3d、11.9d和12.0d,以桃蚜饲养的雌成虫发育历期较短;
    The development starting point of coons and pupa is 13.9 0.99 , it's effective accumulated temperature is 265.24 9.00 day degree.
    蛹的发育起点温度13.9±0.99℃,有效积温265.24±9.00日度。
短句来源
    Studied the different consistency humic acid, Congo red, methyl green, pupa powde as uv-screen on the spore livability ,the result showed: Congo red of 0.05% was the strongest anti-ultravioler effect, and then were methyl green of 0.1%, pupa powde of 0.5% and humic acid of 0.5%.
    研究了不同浓度腐殖酸,刚果红,甲基绿及蚕蛹干粉作为紫外防护剂对芽孢的保护作用,得出0.05%刚果红防护效果最好,其次是0.1%甲基绿、0.5%蚕蛹干粉和0.5%腐殖酸。
短句来源
    the period of pupa was 9.46d,5.54d,3.73d,3.00d,2.45d,2.25d respectely;
    蛹的发育历期分别为9.46d,5.54d,3.73d,3.00d,2.45d,2.25d;
短句来源
    The starting development temperature of pupa calculated during the experiment was 18.24±1.04℃ and its valid accumulative temperature 113.2± 20.3 day/degrees.
    计算出蛹的发育起点温度为18.24±1.04℃,有效积温为113.2±20.3日度。
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  pupa
In homozygotes for allele Indyp115, we have previously revealed two phases of embryotic lethality and lethality at the larval and pupa stages.
      
Genetic Regulation on the Black Phenotype Mutants of Moth and Pupa of Helicoverpa armigera (Lepidoptera: Noctuidae)
      
Description of the larva and pupa of Parnops glasunovi (Coleoptera, Chrysomelidae)
      
The last instar larva and pupa of Parnops glasunovi Jcbs.
      
The morphology and development of egg, larva and pupa were investigated, which has previously not been done.
      
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Pleonomus canaliculatus Falderm. is one of the most destructive soil-inhabitinginsects to wheat in Honan. It causes considerable losses to the crop in spring bycutting the underground part of the stems, causing withering and death of the plant.The life history, distribution, host plants, morphology and rearing methods of theinsect are given in this paper. The overwintering adults become active in spring. Eggs are laid in the topsoil about the plant. They hatch in 5-8 weeks and the larvae grow to maturity inat...

Pleonomus canaliculatus Falderm. is one of the most destructive soil-inhabitinginsects to wheat in Honan. It causes considerable losses to the crop in spring bycutting the underground part of the stems, causing withering and death of the plant.The life history, distribution, host plants, morphology and rearing methods of theinsect are given in this paper. The overwintering adults become active in spring. Eggs are laid in the topsoil about the plant. They hatch in 5-8 weeks and the larvae grow to maturity inat least 15 months. Pupation takes place during late August up to mid-septemberand the pupal stage requires about 2 weeks. The young adults remain and overwinterin their pupal cells. Fall plowing to a depth of 6 to 9 inches soon after the harvest of summer cropswill destroy a great number of pupae and young adults by breaking up their cells inthe soil. The larvae are thus turned up and exposed to the predators. Rotation ofcrops by using sesame or legumes instead of millet preceding wheat, and summerfallow of the land are found to be helpful to lessening the infestation. Control may be effective by dusting γ-BHC (at,1.5 to 2.5 kgs of 0.5% γ-BHC permow mixed with 3 parts of dry soil or sand) into the top soil by means of a tripodhand-driller between the rows just before the activity of wireworms in spring.

1.沟金针虫需2年以上完成一代生活史。越冬成虫2月下旬出土,3月中旬至4月中旬为活动盛期,产卵在1至2寸表土内,卵于5月初孵化,卵期为5至8星期。老熟幼虫8月下旬开始化蛹。9月中旬起羽化,蛹期约2星期。成虫羽化后即行越冬。 2.越冬幼虫2月底至3月中旬开始向表土活动(10厘米处地温8—12℃左右),3月中旬及4月全月是为害盛期(80%以上幼虫集中在1至2寸之表土内),8月至12月表土之幼虫密度极小(仅有虫1.2—6.8%),不致为害成灾。 3.沟金针虫之天敌除一种壁虱(Cheyletus sp.)和一种蜘蛛及蚂蚁外,尚有寄生菌2种,具中一种经鉴定为冬虫夏草(Cordyceps sp.)之一种。 4.小麦整地时适当深犁(5—7寸)并精耕细作能毁杀大部分蛹体及成虫,并可将幼虫翻上来供鸟类捕食(9,10月间97%老熟幼虫,在5—7寸土内化蛹及羽化,同时88%幼虫分布于1—7寸土内)。此外以芝麻与豆类为小麦前作及夏季休间结合翻耕曝晒亦能减少虫害损失。 5.沟金针虫在河南的主要为害期系在春季,所以早春於麦行间耩666毒土或毒沙以毒杀向表土上升之幼虫是值得继续研究的。

The present paper reports on two lamellicorn beetles: Adoretus tennuimacu-latus Waterh. and Liocola brevitarsis Lew. The former belongs to the subfamilyRutelinae and the later Cetoniinae. Adoretus tennuimaculatus has two generations per year at Lientang. Thefirst active period of adults mostly occured in June and the second period inAugust. After 7: 30 at night, the adults went out and stayed on various hostplant leaves feeding or copulating and then back into earth at dawn. Larvaewere not strict in selecting...

The present paper reports on two lamellicorn beetles: Adoretus tennuimacu-latus Waterh. and Liocola brevitarsis Lew. The former belongs to the subfamilyRutelinae and the later Cetoniinae. Adoretus tennuimaculatus has two generations per year at Lientang. Thefirst active period of adults mostly occured in June and the second period inAugust. After 7: 30 at night, the adults went out and stayed on various hostplant leaves feeding or copulating and then back into earth at dawn. Larvaewere not strict in selecting the soil but most of them lived in the garden soil,mound soil and. clay landside. Liocola brevitarsis has only one generation per year at Lientang. The adultperiod was from June to September and some of them lengthened out mid-Octo-ber. Adults flied out at day time and sucked the different part of hosts: as theflesh of fruit, the juice of tree and the corn ear, once in a few days. Larvaeselected the soils more strictly. They concentrated in compost and rich humussoil. Controlling methods: (1) To spray 0.5%γ666 or 25% DDT emulsion (250water:1 emulsion) once to the host leaves was effective in protecting against theadults of Adoretus till its last period of activity. (2) To shake the tree to makethe adults of Adoretus fall down and then unroll a piece of white cloth underthe tree to gather the adults. (3) To make a bamboo cylinder, 12-16 in. long,which was filled with rotten fruits and nectar, and trap all the adults of Liocolain this cylinder. (4) To clean out the compost before June in order to kill mostof the larvae and pupae of Liocola.

1.本文所述的两种金龟子,其一为茶色金龟子,属鞘翅目,金龟子科中的Rutelinae亚科,其二为铜色白纹金龟子,属Cetoniinae亚科。 2.茶色金龟子在莲塘一年发生二代。其第1次成虫盛期多在6月。第2次则在8月;铜色白纹金龟子,一年仅发生一代,其成虫出现期为6至9月,少数可延长到10月中旬。 3.茶色金龟子的成虫,为夜出性,傍晚7时半后,即开始出土,停息在多种寄主植物的叶片上,取食或交配,拂晓时飞返土中。铜色白纹金龟子的成虫,为日出性,取食成熟果子,玉米苞穗及多种树木的浆汁,亦喜取食。既钻入后,可连续数日不出。 4.两种金龟子的幼虫,都栖息在土中。茶色金龟子幼虫以在菜园土中、丘陵黄土地及属于粘壤性质的田塍内为多,对于土壤性质选择,较不严格。铜色白纹金龟子幼虫则多集中在腐熟的堆肥及腐殖质极丰富的土中,对于土壤,有比较严格的选择性。 5.关于防治方法:茶色金龟子在成虫期曾试用了0.5%γ体666粉及25%DDT乳剂(1份加水250份〕喷撒,第1种药适用于叶面较粗糙的植物,第2种则可用于叶面较光滑的植物,只要喷撒1次,便能在整个成虫发生期中,避免其飞来取食。铜色白纹金龟子的成虫,则可采用竹筒诱杀,筒高12—1...

1.本文所述的两种金龟子,其一为茶色金龟子,属鞘翅目,金龟子科中的Rutelinae亚科,其二为铜色白纹金龟子,属Cetoniinae亚科。 2.茶色金龟子在莲塘一年发生二代。其第1次成虫盛期多在6月。第2次则在8月;铜色白纹金龟子,一年仅发生一代,其成虫出现期为6至9月,少数可延长到10月中旬。 3.茶色金龟子的成虫,为夜出性,傍晚7时半后,即开始出土,停息在多种寄主植物的叶片上,取食或交配,拂晓时飞返土中。铜色白纹金龟子的成虫,为日出性,取食成熟果子,玉米苞穗及多种树木的浆汁,亦喜取食。既钻入后,可连续数日不出。 4.两种金龟子的幼虫,都栖息在土中。茶色金龟子幼虫以在菜园土中、丘陵黄土地及属于粘壤性质的田塍内为多,对于土壤性质选择,较不严格。铜色白纹金龟子幼虫则多集中在腐熟的堆肥及腐殖质极丰富的土中,对于土壤,有比较严格的选择性。 5.关于防治方法:茶色金龟子在成虫期曾试用了0.5%γ体666粉及25%DDT乳剂(1份加水250份〕喷撒,第1种药适用于叶面较粗糙的植物,第2种则可用于叶面较光滑的植物,只要喷撒1次,便能在整个成虫发生期中,避免其飞来取食。铜色白纹金龟子的成虫,则可采用竹筒诱杀,筒高12—16寸,筒内盛腐熟果子及蜜,贴靠枝杆悬挂,能将圆内所有成虫,全部诱入筒中。此外,前一种成虫,并可利用外出?

In Kwei-ting, Southwest China, the tobacco leaf-miner has five complete overlapping genera-tions. In the tobacco growing region of Kweichow, 30-40% of the tobacco plants are affected.Alternate hosts of this pest include: Nicotiana fabacum, N. rustica, N. repanda, N. persica, Solanum melongena,Datura sp., Solanum tuberosum, Cirsium segetem, Capsicum longum and Lycopersicum esculentum. The tobacco leaf-miner passes the winter in the egg, larva, pupa or adult stage. , Effective control measures include spraying...

In Kwei-ting, Southwest China, the tobacco leaf-miner has five complete overlapping genera-tions. In the tobacco growing region of Kweichow, 30-40% of the tobacco plants are affected.Alternate hosts of this pest include: Nicotiana fabacum, N. rustica, N. repanda, N. persica, Solanum melongena,Datura sp., Solanum tuberosum, Cirsium segetem, Capsicum longum and Lycopersicum esculentum. The tobacco leaf-miner passes the winter in the egg, larva, pupa or adult stage. , Effective control measures include spraying with 0. 01%γ BHC or 1% DDT at the appearanceof the first instar larvae, and the destruction of the overwintering insect stages and their overwin-tering plan hosts.

1.烟潜叶蛾属鳞目、麦蛾科,学名经请中国科学院昆虫研究所朱弘复教授鉴定,是Gnorimoschema operculella(Zeller)。 2.至今据有关农业机关调查;烟潜烟蛾在我国分布已有6省、82县(市)以上。 3.寄主以茄科植物为主,计有烟草、茄、马铃薯、番茄、辣椒、蔓陀萝、刺菜。在贵定一带一年发生5个完整的叠置世代;越冬虫态有卵、幼虫、蛹、成虫;越冬处所是烟、茄楂地及地边烟杆堆处,农家马铃薯贮藏处所较少。 4.烟潜叶蛾在烤烟本田生长期发生两个叠置世代;前期为害轻,后期为害重。自2月下旬以至3、4月间马铃薯、烟相继萌芽生长,越冬的烟潜叶蛾迁移过来,烟移植了苗床期也就结束、马铃薯也将收获完毕,此后即迁移到烟本田里,这是按据烟潜叶蛾在主要寄主植物间的消长,认为是这样迁移的。 5.烟潜叶蛾的主要习性是:成虫具慕光性,夜晚活动,产卵于脚叶及烟株茎基部,散产,也有2—3粒产在一起的。卵多于清早孵化,初孵化的幼虫多在叶片或茎上,活动2至149分钟不等,才开始蛀叶取食。幼虫主要是集中为害脚叶,潜痕因故破裂时,多行迁移。化蛹在地面、脚叶、或茎基部、地面残枝树叶上。 6.进行防治以拔除处理烟、茄楂杆,并厉行秋耕,可为...

1.烟潜叶蛾属鳞目、麦蛾科,学名经请中国科学院昆虫研究所朱弘复教授鉴定,是Gnorimoschema operculella(Zeller)。 2.至今据有关农业机关调查;烟潜烟蛾在我国分布已有6省、82县(市)以上。 3.寄主以茄科植物为主,计有烟草、茄、马铃薯、番茄、辣椒、蔓陀萝、刺菜。在贵定一带一年发生5个完整的叠置世代;越冬虫态有卵、幼虫、蛹、成虫;越冬处所是烟、茄楂地及地边烟杆堆处,农家马铃薯贮藏处所较少。 4.烟潜叶蛾在烤烟本田生长期发生两个叠置世代;前期为害轻,后期为害重。自2月下旬以至3、4月间马铃薯、烟相继萌芽生长,越冬的烟潜叶蛾迁移过来,烟移植了苗床期也就结束、马铃薯也将收获完毕,此后即迁移到烟本田里,这是按据烟潜叶蛾在主要寄主植物间的消长,认为是这样迁移的。 5.烟潜叶蛾的主要习性是:成虫具慕光性,夜晚活动,产卵于脚叶及烟株茎基部,散产,也有2—3粒产在一起的。卵多于清早孵化,初孵化的幼虫多在叶片或茎上,活动2至149分钟不等,才开始蛀叶取食。幼虫主要是集中为害脚叶,潜痕因故破裂时,多行迁移。化蛹在地面、脚叶、或茎基部、地面残枝树叶上。 6.进行防治以拔除处理烟、茄楂杆,并厉行秋耕,可为治本办法。他如提前移植,结合耕作管理打除处理胎叶,用0.01%γ-666或1%DDT液剂在初龄幼虫期喷药

 
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