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fenvalerate
相关语句
  氰戊菊酯
    Molecular Cloning and Heterologous Expresssion of Cytochrome P450 Genes Associated with Fenvalerate Resistance in Helicoverpa Armigera (H(?)bner)
    与氰戊菊酯抗性相关的棉铃虫细胞色素P450基因的克隆及异源表达
短句来源
    Based on the recommended dose and double dose, the half-life of chlorpyrifos residue decomposition in spinach was tested , being 4.56 and 6.18 days by spraying leaves, 5.63 and 6.38 days for cypermethrin, 5.93 and 7.88 days for fenvalerate, 3.58 and 3.60 days for chlorothalonil, respectively.
    在推荐用量和加倍用量叶面喷洒处理条件下,毒死蜱的半衰期分别为4.56d和6.18d,氯氰菊酯的半衰期分别为5.63d和6.38d,氰戊菊酯的半衰期分别为5.93d和7.88d,百菌清的半衰期分别为3.58d和3.60d。
    Effect of Fenvalerate and Phenobarbital (PB) on the Levelsof Cytochrome P450 in Helicoverpa armigera Hübner
    氰戊菊酯和苯巴比妥钠(PB)对棉铃虫细胞色素P450含量的影响
短句来源
    Lethal and sublethal effects of fenvalerate applied to host larvae on the parasitoid Cotesia plutellae
    氰戊菊酯施用于寄主幼虫对菜蛾绒茧蜂的致死和亚致死效应
短句来源
    Sublethal Effects of Fenvalerate and Fenpropathrin on the Cotton bollworm
    氰戊菊酯和甲氰菊酯对棉铃虫的亚致死效应
短句来源
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  “fenvalerate”译为未确定词的双语例句
    Preliminary Report on Experiment of Application of. 25% Fenvalerate Dimethoate Emulsifier and 40% SN-851 to Control Three Bamboo Insects
    应用25%菊乐合酯乳剂、40%SN-851乳剂防治三种竹虫试验初报
短句来源
    Application of Fenvalerate in Controlling termite Reticulitermes flaviceps(Oshima)
    施用杀灭菊酯防治黄肢散白蚁(Reticulitermes flaviceps (Oshima))试验
短句来源
    A Evaluation Method of Field Trial for Controlling of Ballworm by 20% Methamidophos with Fenvalerate EC
    20%甲胺·氰乳油防治棉铃虫的一种田间药效评价方法
短句来源
    The effective concentration of fenvalerate was 50 to 100 ppm and of decamethrin 5 to 10 ppm. The period of the residual effect lasted at least for 15 days.
    两种药剂对该虫第一、二代幼虫防治效果良好,其有效浓度杀灭菊酯为50—100ppm,溴氰菊酯为5—10ppm,残效期至少可达15天。
短句来源
    The dosage of fenvalerate for the larvae at 3 to 4 stadium is 0.2g a. i. /mu, and for those at 5 to 6 stadium 0.4g a.
    杀灭菊酯对3~4龄幼虫为0.2g,5~6幼虫为0.4g,均可获得良好的防治效果。
短句来源
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  fenvalerate
Analysis of fenvalerate in its formulations and environmental samples using spectrophotometry
      
Two rapid, simple, sensitive, and nonextractive spectrophotometric methods were described for the determination of fenvalerate (syntheitic pyrethroid) in its formulations, water and grain samples.
      
The methods are based on the hydrolysis of fenvalerate with methanolic NaOH to form 3-phenoxybenzaldehyde.
      
The proposed methods have been applied to the determination of fenvalerate in its formulations and environmental samples.
      
Direct analysis of fenvalerate isomers by liquid chromatography.
      
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Tests were conducted to evaluate the ovicidal activities of three new insecticides, Fenvalerate (alpha-cyano-m-phenoxybenzyl alpha-isopropyl-p-chlorphenylacetate), Tria-zophos (l-phenyl-3-(0-diethylthionophosphoryl)-l, 2, 4, triazol), and Quinalphos (0, 0-diethyl-0-(quinoxalinyl-2)-thionophosphate), to eight species of arthropods in the laboratory during 1980-1981. Dipterex, Malathion, and Chlordimeform were used as the respective standards. Eggs were dipped in dilutions for 5 seconds, then transferred...

Tests were conducted to evaluate the ovicidal activities of three new insecticides, Fenvalerate (alpha-cyano-m-phenoxybenzyl alpha-isopropyl-p-chlorphenylacetate), Tria-zophos (l-phenyl-3-(0-diethylthionophosphoryl)-l, 2, 4, triazol), and Quinalphos (0, 0-diethyl-0-(quinoxalinyl-2)-thionophosphate), to eight species of arthropods in the laboratory during 1980-1981. Dipterex, Malathion, and Chlordimeform were used as the respective standards. Eggs were dipped in dilutions for 5 seconds, then transferred to petri dishes and incubated at a suitable temperature. The percentages of eggs that failed to hatch were counted.Tests showed that Triazophos and Quinalphos were highly toxic to the eggs of Mythimna separata, Ostrinia nubilalis, Chilo suppressalis, Heliothis armigera and Pieris rapae, while Penvalerate was less toxic to the eggs of some lepidopterous insects than Triazophos and Quinalphos. Triazophos was most toxic to the eggs of Nephotettix cineticeps and Tetrcmychus cinnabarinus among the three toxicants, but Fenvalerate was least toxic to these species.Fenvalerate in low concentration was comparatively safe to the eggs of Leis axy-ridis, a main predator to aphids, whereas Triazophos and Quinalphos were hazardous severely.At the 0.04% concentration, the ovicidal activity of Fenvalerate to the eggs of N. cineticeps was dependent on the developmental stage of eggs at the time of treatment. Older eggs were more susceptible to the toxicants. The same trend occurred, but less apparently in the Quinalphos-treated eggs.Our observations of temperature effect show that Triazophos and Quinalphos have positive temperature coefficients against the eggs of M. separata, and Fenvalerate has also positive coefficieut. against the eggs and larvae of M. separata.

就杀灭菊酯、三唑磷及喹硫磷三种新杀虫剂对粘虫、二化螟、玉米螟、菜粉蝶、棉铃虫、黑尾叶蝉、异色瓢虫及棉红蜘蛛8种节肢动物的卵,进行了室内杀卵活性试验。 三唑磷及喹硫磷对5种鳞翅目昆虫具有强大的杀卵活性,杀灭菊酯较差。三唑磷对水稻黑尾叶蝉及棉红蜘蛛的杀卵活性较喹硫磷强,杀灭菊酯几乎无效。杀灭菊酯对捕食性天敌——异色瓢虫的卵,显较三唑磷及喹硫磷安全,后二者则是毁灭性的。 杀灭菊酯对黑尾叶蝉的杀卵活性因卵的不同发育期而异,发育后期的卵对药剂的敏感性较强。 对粘虫卵的温度试验表明,杀灭菊酯不是一个负温度系数杀虫剂。

The recently developed synthetic pyrethroid insecticides ( fenvalerate, decamethrin ) have been selected in several tests for the control of Setora Postornata in the peach orchard in the suburbs of Hangzhou from 1980 to 1982. Spraying with these two synthetic pyrethroids was found to be very effective in controlling the larvae of the 1st and 2nd generations. The effective concentration of fenvalerate was 50 to 100 ppm and of decamethrin 5 to 10 ppm. The period of the residual effect lasted at least...

The recently developed synthetic pyrethroid insecticides ( fenvalerate, decamethrin ) have been selected in several tests for the control of Setora Postornata in the peach orchard in the suburbs of Hangzhou from 1980 to 1982. Spraying with these two synthetic pyrethroids was found to be very effective in controlling the larvae of the 1st and 2nd generations. The effective concentration of fenvalerate was 50 to 100 ppm and of decamethrin 5 to 10 ppm. The period of the residual effect lasted at least for 15 days.

作者于1980—1982年选用拟除虫菊酯类杀虫剂(杀灭菊酯和溴氰菊酯)在杭州郊区桃园对褐刺蛾进行了多次防治试验。两种药剂对该虫第一、二代幼虫防治效果良好,其有效浓度杀灭菊酯为50—100ppm,溴氰菊酯为5—10ppm,残效期至少可达15天。

Hoplocampa sp. is an important pest in the small fruit period of the plum tree in Zhejiang province. This pest completes one generation in a year in Dongyong county of Zhejiang province. Its mature larva makes cocoon under the earth during the winter. The adult begins to come out from the earth in the middle and last ten-day period of March, when the highest temperature during the daytime reaches 14-15℃. The full blooming period of the plum is just at the peak period when the adult is laying eggs in great numbers....

Hoplocampa sp. is an important pest in the small fruit period of the plum tree in Zhejiang province. This pest completes one generation in a year in Dongyong county of Zhejiang province. Its mature larva makes cocoon under the earth during the winter. The adult begins to come out from the earth in the middle and last ten-day period of March, when the highest temperature during the daytime reaches 14-15℃. The full blooming period of the plum is just at the peak period when the adult is laying eggs in great numbers. The adult likes to lay eggs in the exocuticle of the receptacle. The hatched larvae come out from the exocuticle of the receptacle at once and enter the same flower and eat its young drupel. Approximately in the middle ten-day period of May the full-grown larva leaves the fruit and gets into the earth in great numbers. The larva -which lives through the winther is mainly distributed in the layer of the earth 10 cm under the surface 50 cm apart from the trunk under the crown of the tree.The comprehensive methods of controlling Hoplocampa sp. are the following; when the adult comes out from the earth for the first time,the insectici-oles Decamethrin (5ppm) or Malathion (500ppm) are sprayed upon the crown of the tree or on the surface of the earth; when the larva begins to hatch, Fenvalerate ( 50ppm ) or Fenitrothion ( 500ppm ) is sprayed upon the crown of the tree; when the damaged fruit and the normal fruit can be recognized distinctly and when the larva has not yet left the fruit the damaged plum fruits are picked off and dealt with altogether; when the full-grown larva begins to leave the fruit, insecticides are sprayed to kill them. ( Through tests, it is found that the toxicity of the seven insecticides including three synthetic pyrethroids and Malathion to the mature larva is very high ) ; ploughing the plum garden in winter can freeze some of the pests to death through the winter.

李实蜂Hoplocampa sp.为浙江省李树幼果期的重要害虫。该虫在浙江东阳县一年发生一代。以老熟幼虫在土中结茧越冬。成由于3月中下旬、日最高气温达14—15℃开始出土。李树盛花期正值成虫产卵高峰期。成虫喜产卵于巳开放之花朵的花托外表皮内。幼虫孵化后即从花托外表皮钻出,再蠕行至本花内蛀入幼果核部食害。约5月中旬老熟幼虫大量脱果入土。越冬幼虫主要分布于离主干50厘米至树冠外缘3寸深的表土层内。 对李实蜂综合防治的措施:预测成虫出土始期,树冠或上面喷施2.5%溴氰菊酯乳油5000倍液或50%马拉松乳油1000倍液等;于幼虫始孵期,树冠喷施20%杀灭菊酯乳油4000倍液或50%杀螟松乳油1000倍液等;于虫果与健果开始明显区别而幼虫尚未脱果前摘除虫果集中处理;于老熟幼虫脱果始期,土面施药毒杀脱果的老熟幼虫。(测试3种拟除虫菊酯、马拉松等7种药剂对老熟幼虫的毒力均很高);冬季耕翻园土以冻死土中部分越冬虫口。

 
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