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cypermethrin
相关语句
  氯氰菊酯
    Experiments on the Residue of Cypermethrin on Peaches
    氯氰菊酯在桃子上的残留试验
短句来源
    The 9 common used insecticides of cypermethrin 4.5%EC,omethoate 40%EC,chlorpyrifos 40%EC,acetamiprid 3%EC,imidacloprid 10%EC provided excellent control for wheat aphids in fields. The control effects were over 90% at 7 days after spraying.
    为了明确杀蚜药剂对麦蚜的防治效果、适宜的防治时期、对生态环境安全性和粮食作物食品安全性的影响,对4.5%氯氰菊酯、40%氧化乐果、40%毒死蜱、3%啶虫脒、10%吡虫啉等9种防治麦蚜的药剂进行了筛选,发现各药剂对麦蚜的防效较好,喷药后7 d防效均在90%以上。
短句来源
    ResultsThe LC50 of Musca domestica to DDVP,deltamethrin,cypermethrin and permetrin were 0.783 7,0.101 4,0.205 8 and 0.167 6 mg/m3 respectively.
    结果安阳市家蝇对DDVP、溴氰菊酯、氯氰菊酯、氯菊酯的LC50分别是0.7837,0.1014,0.2058,0.1676 mg/m3。
短句来源
    The results show that the selective toxicity of imidacloprid is the highest among 15 insecticides tested, and its selective toxicity ratio(STR, ladybird LD50/aphid LD50)is 135.56.Other insecticides with higher selective toxicity are cyfluthrin, cypermethrin and malathion,of which STRs are 114.00,62.86 and 45.43,respectively.
    结果表明,供试杀虫剂中以吡虫啉对七星瓢虫幼虫和苹果黄蚜的选择性最高,其选择性比值(七里瓢虫LD50/苹果黄蚜LD50)为135.56,其次为氟氯氰菊酯氯氰菊酯和马拉硫磷,其选择性比值分别为114.00、62.86和45.43。
短句来源
    The results show that when the 80% dichlorvos oil was used at rates of 2000-1000 times (1:2000-1:1000), its residue was tested less than 0.01mg/kg 3d later after discharged, but cypermethrin remained higher residues even 7d later after discharged.
    结果表明,80%敌敌畏乳油在使用的浓度为2000倍-1000倍液时,在施药后3d,其残留量<0.01mg/kg,氯氰菊酯在施药后7d,仍有较高的残留量;
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  高效氯氰菊酯
    and for beta cypermethrin, Y = 2.206x + 2.228 9, LD50 = 0.072 μg/individual.
    高效氯氰菊酯的毒力回归方程为Y=2.206x+2.2289,LD50=0.072μg/头。
    Study on the Micro-emulsion of 5% High-active Cypermethrin
    5%高效氯氰菊酯微乳剂的研究
短句来源
    Inhibition of High effect cypermethrin on Ca-ATP_(ase) of Blattella germanica
    高效氯氰菊酯对德国小蠊Ca-ATP_(ase)抑制效应
短句来源
    Analysis of Abamectin and Cypermethrin in Mixture by HPLC
    阿维菌素与高效氯氰菊酯混配制剂的HPLC分析
短句来源
    6. test of indoor bioassary and warehouse trail indicated that 800 folds of 80% dichlorvos, 2000 folds of 20% fenvalerate 2000 folds of 5% cypermethrin and 2000 folds 20% fenpropathrin were efficient to control the larvae.
    6.室内生物测定与烟仓试验表明,80%敌敌畏EC 300倍液、20%氰戊菊酯EC 2000倍液、5%高效氯氰菊酯EC 2000倍液、20%灭扫利EC 2000倍液对幼虫均有良好的杀虫效果。
短句来源
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  “cypermethrin”译为未确定词的双语例句
    Study on the Control of Rice Water Weevils with Cypermethrin—BPMC
    氯杀威防治稻水象甲的研究
短句来源
    ConclusionIn contrast with national standard sensitive strain,the relative resistance of Musca domestica to DDVP,deltamethrin,cypermethrin and permethrin were 68.7,169,45.7 and 28.9 respectively.
    结论与全国标准敏感品系相比,相对抗性分别为68.7,169,45.7,28.9。
短句来源
    Study on Preparation of 40% cis,trans_Cypermethrin Malathion Emulsion
    40%高效顺反氯马乳油的研制
短句来源
    Research and development of 29% oil acid nicotine·cypermethrin EC
    29%油酸烟碱·氯氰乳油的研制
短句来源
    The Toxicity and Control Efficiency of Mixture of 3% Avermectin and Cypermethrin
    3%阿维·高氯EC的毒力及对大豆害虫的防治效果
短句来源
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  cypermethrin
Diastereoselective and enantioselective chromatography of the pyrethroid insecticides allethrin and cypermethrin
      
Liquid and gas chromatographic separations of the pyrethroid insecticides allethrin and cypermethrin have been investigated with various achiral and chiral stationary phases.
      
Diastercomeric and enantiomeric selectivity was observed for cypermethrin on a Pirkle-type chiral LC stationary phase, but very strong interactions and therefore long retention times prevented the separation of allethrin on this phase.
      
Trans-allethrin isomers were separated on a chiral β-cyclodextrin RP-HPLC column while cypermethrin showed some difficulties on this phase due to isomerization.
      
Diastereomeric but no enantiomeric selectivity by GC was achieved for cypermethrin with an apolar DB 5 capillary.
      
更多          


This paper reports on the dynamic study of Cypermethrin residue on peaches planted in the experiment plots located in Beijing and Linan, Zhejiang. Whole fruit sample examination showed that the chemical residue amount would never exceed the maximn permited limit of 2 ppm if a common concentration of 25-50 ppm was spraied, during the whole fruiting period for 3 times at the most, and with the last spraying 15 days before collection. No residue was found in the flesh of the peach when examined the rind and...

This paper reports on the dynamic study of Cypermethrin residue on peaches planted in the experiment plots located in Beijing and Linan, Zhejiang. Whole fruit sample examination showed that the chemical residue amount would never exceed the maximn permited limit of 2 ppm if a common concentration of 25-50 ppm was spraied, during the whole fruiting period for 3 times at the most, and with the last spraying 15 days before collection. No residue was found in the flesh of the peach when examined the rind and flesh separately, the flesh of the peach was safe to eat.

本文报导了氯氰菊酯在桃子上的残留动态试验。试验点分别设在北京及临安两地。试验结果表明,在桃子结果期按常用浓度25-50ppm喷施,最多喷三次,最后一次喷药距采收期15天分析全果残留量均未超过规定的最大残留限度2ppm。如将果皮及果肉分开检测,则皮中能检出,果肉未检出,故对桃子果肉食用是较为安全的。

The article reports the experiment and analytical method of Cyperme-thrin residue on the tomatoes. In summer, when Cypermethrin at concentration of 50ppm was sprayed during the growing stage of the tomato plant, the dissipation of the pesticide was 80% on the tenth day. The half-life of Cypermethrin on the tomato fruit was about 4 days in the field. The growth dilution of the tomato decreased the level of pesticide residue in the tomato. At maturity, tomatoes were sprayed with 2 applications ( at...

The article reports the experiment and analytical method of Cyperme-thrin residue on the tomatoes. In summer, when Cypermethrin at concentration of 50ppm was sprayed during the growing stage of the tomato plant, the dissipation of the pesticide was 80% on the tenth day. The half-life of Cypermethrin on the tomato fruit was about 4 days in the field. The growth dilution of the tomato decreased the level of pesticide residue in the tomato. At maturity, tomatoes were sprayed with 2 applications ( at 10 day interval ) of Cypermethrin 10 EC at 25-100ml/mou. On the first day after the 2nd spraying, the residue on the tomato fruit was found to be below 0.2ppm. And in the tomato flesh ( with pericarp off ) no residue was detected ( residue being below 0.003ppm ) .

本文报导了氯氰菊酯(Cypermethrin)在番茄上的残留试验及样品分析方法。在夏季,番茄生长期喷施50ppm的氯氰菊酯溶液,喷药后10天,药液在番茄果上消失80%以上,残留半衰期约4天。番茄的生长稀释,降低了番茄中的农药残留水平。在番茄成熟期,喷施10%氯氰菊酯乳油25~100毫升/亩,施药2次(2次间隔10天),第二次施药后1天,在番茄全果中的农药残留量低于0.2毫克/公斤。在去皮的番茄果肉中未检出农药(残留量低于0.003毫克/公斤)。

Laboratory and field tests showed that cotton aphides were very susceptible to pyrethroids e. g. deltamethrin, cypermethrin, flucythrinate, and fenvaterate. Their control effectiveness in the fields was marked. Smearing stems with monocrotophos slow-release-formutation was more effective than with omethoate. Seed dressing with methyl-phosfolan granule can control cotton aphides, but it has some inhibition of cotton growth in its early period.

室内试验和大田药效试验结果表明:棉蚜对拟除虫菊酯杀虫剂溴氰菊酯、氯氰菊醋、氟氰菊酯、杀灭菊酯十分敏感,大田防效显著。久效磷缓释剂涂茎对棉蚜的防治效果大于氧乐果。甲基硫环磷颗粒剂拌种可以防治棉蚜,但对棉花生长前期有些抑制作用。

 
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