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malathion
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  马拉硫磷
    THE RELATION BETWEEN MALATHION RESISTANCE AND ESTERASES IN BROWN PLANTHOPPER
    褐飞虱对马拉硫磷的抗性与酯酶的关系
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
    New process of synthesis tasteless 94% crude oil malathion
    94%无臭马拉硫磷原油合成新工艺
短句来源
    Impacts of Malathion on Population Genetic Structure of Oxya chinensis
    马拉硫磷对中华稻蝗种群遗传结构的作用
短句来源
    Population Genetic Structure of Oxya Chinensis from Northern China and the Relationship among Allozyme Genotypes and Malathion Acute Toxicity
    华北地区中华稻蝗Oxya chinensis部分种群遗传结构及其与马拉硫磷急性毒性之间的关系
短句来源
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  马拉松
    50% malathion 1/1000-1500;
    50%马拉松1000~1500倍;
短句来源
    The effective measures to control the larvae are spraying with Dipterex, Dichlorvos, Malathion, Fenitrothion, Pyrethrins or granulosis virus of Latoia lepida.
    对幼虫喷敌百虫、敌敌畏、马拉松、杀螟松、除虫菊脂或颗粒体病毒有良好效果。
短句来源
    This report describes the method for determination of multi-residues of the 9 organic phosphorus insecticides, including dichorvos, mevinphos, phorate, diazinon, dimethoate, fenchlorphos, methyl. parathion, malathion and parathion.
    本文介绍了9种有机磷杀虫剂:敌敌畏、速灭磷、甲拌磷、二嗪农、乐果、皮蝇磷、甲基对硫磷、马拉松、对硫磷的多残留检测方法。
短句来源
    The contact toxicity of Reticulitermes flaviceps to permethrin, deltamerhrin, chlorpyrifos, malathion and chlordane was tested to estimate KT(50). The results showed that termite could be killed by these five insecticides respectively when the concentration range from 1ppm to 1000ppm.
    用滤纸药膜法测定了二氯苯醚菊脂、溴氰菊酯、毒死蜱、马拉松以及氯丹对黄肢散白蚁(Reticulitermesflaviceps)的接触毒性,结果表明在1-1000ppm范围内,五种药剂都对白蚁具有击倒作用;
短句来源
    To organophosphates the sensitive order was fenitrothion >omethoate>phoxim>dichlorvos>malathion,and the LD\-\{50\} values were 3 81×10\+\{-2\},6 06×10\+\{-2\},\{1 5×\}10\+\{-1\},2 37×10\+\{-1\} and 3 68×10\+\{-1\} μg/larva, respectively.
    对有机磷杀虫剂的敏感性依次为 :杀螟松 >氧化乐果 >辛硫磷 >敌敌畏 >马拉松 ,其LD50 值分别为 3 81× 10 -2 、 6 0 6× 10 -2 、 1 5× 10 -1、 2 37× 10 -1和 3 6 8× 10 -1μg/头 ;
短句来源
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  “malathion”译为未确定词的双语例句
    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
    Results showed that the susceptibility of the pest to insecticides at daytime changed regularly, and it was most sensitive to insecticides at 9∶30 pm and 4∶30 pm, but lowest at 2∶30 pm. Experimental results demonstrated that deltamethrin mixed with malathion in 1∶9 a. i;
    结果表明, 苹果黄蚜在白天对所试药剂的敏感性呈规律性变化, 在9∶30am和4∶30pm对各药剂均出现敏感性高峰, 为喷药的最佳时间, 而在2∶30pm敏感性最低, 应减少在此时向区域内用药;
短句来源
    GC–MS and GC–MS–MS determination method is described for determining ten organophosphorus pesticides including methamidophos, omethoat, monocrotophos, phorate, fenitrothion, mevinphos, azinphosmethyl, phoxim, profenofos, malathion.
    研究了气相色谱–质谱(GC–MS)和气相色谱–二级质谱联用技术(GC–MS–MS)同时测定甲胺磷,氧乐果,谷硫磷和速灭磷等10种有机磷农药的分析方法。
短句来源
    Cross resistance and relative biological fitness of methamidophos and malathion resistant strains of Nilaparvata lugens (Stl)
    褐飞虱抗有机磷品系的交互抗性及适合度研究
短句来源
    Control Effects of 40% Bete-cypermethrin with Malathion on Cabbage Caterpillar in Cabbage Fields
    40%高氯·马乳油对甘蓝菜青虫大面积防治试验
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  malathion
Fungal infection increased the resistance of greater wax moth caterpillars to organophosphorus insecticide malathion 1.46 times relative to intact caterpillars.
      
The Genetic Basis of Malathion Resistance in Housefly (Musca domestica L.) Strains From Turkey
      
High doses of malathion (600 μg/fly) were applied in a laboratory environment for one year to Ceyhan1, Ceyhan2, Adana, and Ankara strains while no insecticide treatment was performed in the laboratory to Kirazli strain.
      
Trp251 → Ser substitution was found in the product of MdαE7 gene in all malathion-resistant and Kirazli stocks.
      
In addition, we checked the malathion carboxylesterase (MCE), percent remaining activities in acetylcholinesterase (AChE), glutathion-S-transferase (GST), and general esterase activities in all five strains used in this study.
      
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The Delphacodes striatella F., is widely distributed in Soochow, Wusih, Changchowof the Taihu Lake rice region in Kiangsu. It is one of the worst pests of our rice crop.The crops from the double cropping early rice and single cropping middle rice are injuredeven more severely. By our observations, the host plant of this small brown planthopper is changedseasonally. The most common hosts are rice in summer or autumn and wheat, Alope-curus aequalis Sobol. in spring or winter. Supplementary hosts include barley,...

The Delphacodes striatella F., is widely distributed in Soochow, Wusih, Changchowof the Taihu Lake rice region in Kiangsu. It is one of the worst pests of our rice crop.The crops from the double cropping early rice and single cropping middle rice are injuredeven more severely. By our observations, the host plant of this small brown planthopper is changedseasonally. The most common hosts are rice in summer or autumn and wheat, Alope-curus aequalis Sobol. in spring or winter. Supplementary hosts include barley, Leersiajaponica Makino, Zoysia japonica Steud., etc. According to the degree of embryonic development the growth of the egg is dis-tinguished in six stages, such as: Blastoderm, Germ band, Yellow spot, Blastokinesis,Eye spot, Accessory-podite and Hatching. The development of nymph goes through about five instars, it becomes adult afterthe fifth moult. The period of each stage is limited by temperature. At 25--26℃, theegg stage is about eight days, the nymph stage is about sixteen days, the adult is aboutfourteen days, the adult is about seven days. The sexual muturation period of the Brachypterous type is 1--2 days earlier than theLongipennate. The female copulates with the male immediately. The eggs are depositedinto the leaf sheath or beside the leaf mid-rib. The egg streak consists of double rowof eggs. Delphacodes striatella F. produces six generations per year. The first generation isfrom late April to early July. The second generation is from early June to early July.The third generation is from early July to August. The fourth generation is from earlyAugust to middle September. The fifth generation is from early September to middleOctober. The nymph of the sixth generation hatches in early October. During the3rd and 4th instars it hibernates on wheat, alfalfa or weeds. The activity of hymenpterous parasites, nematodes and spider in June and July sup-presses the multiplication of the small brown planthopper. The difference of the popula-tion in some regions or in the field is closely related to the nutrition of the host and themicroclimate. The results of laboratory and field tests indicated that: spraying 6% γ wettableB.H.C. (1:200), 46.6& Folidol (1:3000) and 15% wettable Malathion (1:1500) at100 kg of the solutions per mou, gave very successful control.

1.灰稻虱是苏南稻区每年普遍发生为害和暴发年猖獗成灾的主要害虫。由于其早在6—7月间已进入全年发生盛期,故对双季早稻和单季中稻的为害特别严重。 2.该虫的主要寄主 夏秋季为水稻Oryza sativa L.,冬春季为小麦Triticum aestivum L.、看麦娘Alopecurus aequalis Sobol.。其它寄主有稗Echinochloa crus-galli Beauv.、李氏游草Leersia japonicaMakino等十种。 3.灰稻虱在苏南稻区一年发生六代。发生时期:第一代为4月下旬—6月上旬,第二代为6月上旬—7月上旬,第三代为7月上旬—8月上旬,第四代为8月上旬—9月中旬,第五代为9月上旬—10月中旬,第六代若虫在10月上、中旬孵化,11月上、中旬以3—4龄若虫于麦田、紫云英田或沟埂杂草处越冬,翌年3月中旬—4月中旬化为成虫。 4.灰稻虱在水稻田内的消长峰态可以分为“双峰”和“单峰”两种。高峰的出现期一般总是在水稻营养状况良好的分蘖盛期和孕穗期。 5.早夏发生量的多寡,除与水稻早期栽培的面积和营养状况密切有关外,还与冬前虫口基数和1—3月间的气温等综合因子有关。6—7月间,寄生...

1.灰稻虱是苏南稻区每年普遍发生为害和暴发年猖獗成灾的主要害虫。由于其早在6—7月间已进入全年发生盛期,故对双季早稻和单季中稻的为害特别严重。 2.该虫的主要寄主 夏秋季为水稻Oryza sativa L.,冬春季为小麦Triticum aestivum L.、看麦娘Alopecurus aequalis Sobol.。其它寄主有稗Echinochloa crus-galli Beauv.、李氏游草Leersia japonicaMakino等十种。 3.灰稻虱在苏南稻区一年发生六代。发生时期:第一代为4月下旬—6月上旬,第二代为6月上旬—7月上旬,第三代为7月上旬—8月上旬,第四代为8月上旬—9月中旬,第五代为9月上旬—10月中旬,第六代若虫在10月上、中旬孵化,11月上、中旬以3—4龄若虫于麦田、紫云英田或沟埂杂草处越冬,翌年3月中旬—4月中旬化为成虫。 4.灰稻虱在水稻田内的消长峰态可以分为“双峰”和“单峰”两种。高峰的出现期一般总是在水稻营养状况良好的分蘖盛期和孕穗期。 5.早夏发生量的多寡,除与水稻早期栽培的面积和营养状况密切有关外,还与冬前虫口基数和1—3月间的气温等综合因子有关。6—7月间,寄生蜂、线虫和蜘蛛类等天敌的活动,对灰稻虱的增殖也有一定的抑制作用。 6.个体发育中,卵期还可凭胚胎发育的特征划分为胚盘、胚带、黄斑、反转、眼点、附肢形成和孵化等七期。各虫?

The peach leaf hopper, Erythroneura sp., is one of the important insect pests of thepeach tree in Kiangsu Province. There were four overlapping generations a year. Theoverwintering adults became active in the middle of March, and migrated immediately tothe peach trees as soon as the young leaves sprouted out. They could not develop on theleaves of broad bean, cabbage and radish. The appearance of adult stage of each generation was as follows:The overwintering adults hid among several evergreen trees such as...

The peach leaf hopper, Erythroneura sp., is one of the important insect pests of thepeach tree in Kiangsu Province. There were four overlapping generations a year. Theoverwintering adults became active in the middle of March, and migrated immediately tothe peach trees as soon as the young leaves sprouted out. They could not develop on theleaves of broad bean, cabbage and radish. The appearance of adult stage of each generation was as follows:The overwintering adults hid among several evergreen trees such as Juniperuschinensis var. Kaizuca Hort., J. chinensis L., Biota orientalis (Linn.)., Cryptomeria japo-nica D. Don., Pinus massoniana Lamb., Myrica rubra Sieb. et Zucc. It was found thatabout 30% of these adults survived even at a low temperature of --20℃ in late Feb-ruary. Chemical control experiments were carried out both in the laboratory and in theorchards. The results indicated that the malathion miscible oil (25%) at the dilution of1:1,000--2,000 was the most effective spraying formulation, which gave 100% mortalities4 hours after treatment, while 30% parathion and 50% ethion (1240) at the dilution of1:1,000 and 1:500 respectively also gave satisfactory control and exhibited comparativelylonger residual effects. The DDT miscible oil (25%) at the dilution of 1:250 was alsoeffective for controlling this species, which gave 100% mortalities 24 hours after spray-ing in the orchard, and showed the longest residual effect.

桃一点叶蝉在长江流域为桃的重要害虫,据在南京、徐州、洞庭东山等地调查,为害桃的叶蝉共有4种即:桃一点叶蝉Erythroneura sp.,小绿叶蝉Empoasca flavescens,大绿叶蝉Cicadella viridis及棉叶蝉Chlorita biguttula。以桃一点叶蝉为主。它的主要寄主是桃,其他尚有杏、李、中国樱桃、贴梗海棠、月季、苹果、梨等。桃一点叶蝉在南京一年发生四代,以第四代成虫在常绿树如龙柏、侧柏、柳杉、桧柏、马尾松、杨梅上越冬。至早春桃现蕾萌芽时,从越冬寄主上大部分直接迁飞到桃上,少量可到其他寄主上,4月以后都集中到桃上,直到晚秋开始作越冬之迁飞。至11月中下旬全部迁到常绿树上越冬。 室内药效测定结果:25%马拉松乳剂,30%E-605及25%DDT乳剂效果最好,41%敌百虫效果不好,效果最差的是10%γ666乳剂。两次田间防治试验结果与室内一致。在桃园内为避免经常使用DDT而引起螨类的大发生,可采用马拉松,E-605来代替或与DDT混合使用防治桃一点叶蝉及其他桃树害虫。

Laboratory evaluation of some recently developed organophosphorus aphicides-acaricides with comparatively,low mammalian toxicity for initial contact toxicitywas conducted from 1960-1962 in Peking.Two aphid apecies(Aphis gossypiiGlover,Rhopalosiphum pseudobrassicae Davis),adult-two-spotted spider mites(Tetranychus telarius L)and adult common houseflies(Musca domestica vicinaMacq.)were tested by direct precision spray methods.Preliminary residualeffectiveness test on corn seedlings against two-spotted spider mites...

Laboratory evaluation of some recently developed organophosphorus aphicides-acaricides with comparatively,low mammalian toxicity for initial contact toxicitywas conducted from 1960-1962 in Peking.Two aphid apecies(Aphis gossypiiGlover,Rhopalosiphum pseudobrassicae Davis),adult-two-spotted spider mites(Tetranychus telarius L)and adult common houseflies(Musca domestica vicinaMacq.)were tested by direct precision spray methods.Preliminary residualeffectiveness test on corn seedlings against two-spotted spider mites was also car-ried out in greenhouse.The following results were confirmed:1.Dimethoate[0,0-dimethyl S-(N-methyl carbamoylmethyi)dithiophos-phate]possessed high initial contact toxicities both to the aphids(nymphs andapterous adults)and adult two-spotted spider mites.The relative initial con-tact aphicidal and acaric(?)dal toxicities of Dimethoate were found to be approach-ing or superior to those of Demeton.It also exhibited high initial contact toxicitytowards adult houseflies.2.The outstanding initial contact activities exhibited by Metasystox-I to-wards both aphids and two-spotted spider mites were worthy to be fully noted.3.The initial contact aphicidal and acaricidal activities of Demeton-methyland Malathion were considerably lower than those of Dimethoate or Demeton.4.Crude Trithion[0,0-diethyl S-(4-chlorophenylmercaptomethyl)dithio-phosphate]preparations also exhibited high aearicidal activity.Its initial con-tact acarieidal activity was approaching to that of Demeton,while its residualeffectiveness was superior to that of Demeton.5,AC-3741[0,0-diethyl S-(earbamoylmethyl)dithiophosphate]also showedcomparatively high initial contact toxicity against adult two-spotted spider mitesbut its aphieidal activity was not high enough.

应用液剂定量直接喷布法,对两种蚜虫、棉红蜘蛛、家蝇进行多次室内速效触杀毒力测定,以及在温室进行的棉红蜘蛛残效测定初步表明:(1)乐果对两种蚜虫和棉红蜘蛛的速效触杀毒力均接近或超过 E-1059;对家蝇具有高度的触杀毒力。(2)甲基异 G-1059不论对两种蚜虫或棉红蜘蛛都表现很高的杀虫毒力。(3)甲基 K-1059和马拉硫磷对两种蚜虫和棉红蜘蛛毒力的都不够强。(4)三硫磷对棉红蜘蛛成虫也具有高度的触杀毒力,粗制原油的毒力强度接近 E-1059.三硫磷对棉红蜘蛛的残效相当好。(5)AC-3741对棉红蜘蛛成虫的速效触杀毒力也相当强,杀螨毒力强度约为 E-1059的一半;但对两种蚜虫的毒力不够强。

 
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