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weevil
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  象甲
    Controlling Mongolian Weevil with Methamidophos
    甲胺磷防治蒙古灰象甲的研究
短句来源
    A Preliminary Study on the Sugarcane Weevil ──Trochorhopalus humeralis chevrolate
    蔗头象虫──细平象甲的研究初报
短句来源
    Experiments on Control of the Larva of Rice Water Weevil by Fipronil
    氟虫腈防治稻水象甲幼虫试验
短句来源
    Population Dynamics of Rice Water Weevil in Double Rice Cropping Area of Zhejiang Province, China
    浙江省双季稻区稻水象甲的发生动态
短句来源
    Biological Properties of Rice Water Weevil
    稻水象甲的发生规律与防治研究 Ⅴ.稻水象甲的生物学特性研究
短句来源
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    Controlling Mongolian Weevil with Methamidophos
    甲胺磷防治蒙古灰甲的研究
短句来源
    STUDIES ON THE MANGO STONE WEEVIL (STERNOCHETUS OLIVIERI FAUST) IN YUNNAN Ⅰ. Morphology and biology
    果核杧果(Sternochetus olivieri Faust)的研究——Ⅰ.形态学和生物学
短句来源
    A Preliminary Study on the Sugarcane Weevil ──Trochorhopalus humeralis chevrolate
    蔗头虫──细平甲的研究初报
短句来源
    Experiments on Control of the Larva of Rice Water Weevil by Fipronil
    氟虫腈防治稻水甲幼虫试验
短句来源
    Population Dynamics of Rice Water Weevil in Double Rice Cropping Area of Zhejiang Province, China
    浙江省双季稻区稻水甲的发生动态
短句来源
更多       
  象虫
    The Emergence Law of Rice Weevil and Its Control Measures in Paddy Rice Area along the Yellow River in Henan Province
    河南省沿黄稻区稻象虫发生规律及防治技术研究
短句来源
    A Preliminary Study on the Sugarcane Weevil ──Trochorhopalus humeralis chevrolate
    蔗头象虫──细平象甲的研究初报
短句来源
    A Study and Application of the Integrated Control Technologic System for the Control of Sweetpotato Weevil
    甘薯小象虫综合防治技术体系研究与应用
短句来源
    Application of l50 g/mu of 25% fenvalerate dim-ethoate emulsifier, 100g/mu of 40% SN-851 in bamboo forest to control adult weevil (Cyrto-trachelux dux) showed 100% efficiency after 24h, the cost was respectively 2.55 and 1.35yuan/mu.
    用25%菊乐合酯乳剂150克/亩、40%SN-851、100克/亩对竹象虫成虫的药效24小时均达100%,其经济成本分别为2.55元/亩和1.35元/亩。
短句来源
    Iwao's law, Taylor's law and 5 kinds of gathering quotas were applied to analyze the distribution patterns of mixed populations of beet weevil larva, which belong to the genus Bothynoderus Schoenherr, in the field of the Hexi corridor, in Gansu Province. The results indicated that the distribution of the beet weevil larva population in field is aggregated.
    应用Iwao法、Taylor法和其他5种聚集度指标分析了甘肃河西地区甜菜象虫幼虫混合种群在田间的分布型,结果表明甜菜象虫幼虫在田间属聚集分布。
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  “weevil”译为未确定词的双语例句
    ON THE LIFE HISTORY AND CONTROL MEASURES OF THE ACORN WEEVIL, CURCULIO (BALANINUS) DENTIPES (ROELOFS)
    橡实象鼻(虫甲)Curculio(Balaninus)dentipes Roelofs的研究
短句来源
    A STUDY ON THE SUGARCANE WEEVIL
    甘蔗细平象的研究
短句来源
    A Preliminary Study on the Sugarcane Weevil
    甘蔗灰斑象的初步研究
短句来源
    With temperature above 15℃, destroying the overwintering genteration of the weevil, the figures are 1g/m3 16h, and 1 .5g/m3- 12h.
    在15℃以上,处理稻谷和稻草对越冬代成虫杀死100%群体的剂量和时间均是1g/m3-16h,或15g/m3-12h;
短句来源
    The fumigation (condition) of 20000 Pa,2 h,40 g/m 3(CH 3Br) was the best combination against the (weevil) for quarantine.
    2 0 0 0 0Pa、 2h、溴甲烷 (CH3Br)4 0 g/m3为最优检疫熏蒸处理组合
短句来源
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  weevil
Phylogenetic reconstruction of weevil superfamily Curculionoidea (coleoptera) using the SYNAP method
      
Behavior of molecules of adsorbed water in rice hulls, weevil, and amorphous samples of carbon-containing (carbonized, SiO2 content 47%) and pure silica was studied by 1H NMR spectroscopy in the temperature range from 200 to 298 K.
      
New species of the weevil subgenus Eunihus Rtt., genus Otiorhynchus germ.
      
Contribution to the knowledge of the weevil genus Otiorhynchus (Coleoptera, Curculionidae) from northeastern Turkey and Transcau
      
On the systematic position of the weevil Polydrusus americanus (Gyllenhal, 1834) (Coleoptera, Curculionidae)
      
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Sweet-potato wilt,a dangerous disease of sweet potatoes,has made itsappearance for more than 10 years in several districts of the south-easternKwangsi and south-western Kwangtung.During recent years it has been found tocause a heavy loss of sweet potato crop in these two provinces. Sweet-potato wilt is a kind of wilt disease which infects the fibrovascular ??bundles of the plant.It begins to infect the vine cuttings and those parts thatare in close contact with the sick-soil.The infected parts first show the...

Sweet-potato wilt,a dangerous disease of sweet potatoes,has made itsappearance for more than 10 years in several districts of the south-easternKwangsi and south-western Kwangtung.During recent years it has been found tocause a heavy loss of sweet potato crop in these two provinces. Sweet-potato wilt is a kind of wilt disease which infects the fibrovascular ??bundles of the plant.It begins to infect the vine cuttings and those parts thatare in close contact with the sick-soil.The infected parts first show the water-soaked appearance and then extend upwardly,and eventually become blackenedand rotted.As a rule,ths leaves of the infected plants show an abnormal coloror pale yellow,and drooping appearance.In the meantime,the root tips of theadventitious roots of the vines lose their cortex and begin to lot.Wilting followsquite rapidly and finally the entire plant dies.If the disease infects the plantafter the potatoes beginning to form,it may extend throughout the vine and in-to the roots,causing the enlarged roots to show brown streaks and finally blackenedand rotted with pungent odor. The cause of the disease may appropriately be considered as due to bacteriaand Fusarium spp.Four types of bacteria,i.e.white smooth type,yellow smoothtype,white rough type and yellow rough type,are able to cause the disease.Atleast four kinds of Fusarium,i.e.white aerial mycelium type,white mycelium withred of a purple tint substratum type,pink mycelium with red of a purple tint sub-stratum type and without aerial mycelium type are responsible for the disease.Which is the main cause of the disease? Either bacteria or Fusarium alone or theboth in combination is able to cause the disease,further tests should be madebefore a definite conclusion may be drawn. The dissemination of the wilt organisms may appropriately be considered inthree ways,namely,(1) by infested roots and vines,(2) by sick-soil,and (3) byinsects,as the sweet-potato weevil (Gycas formicarius Fabr.).The former twoways of dissemination are more definite than the latter,however,further testsand observations should be made. According to the results of 2-years field experiments in Tsen-shi and Peh-liustations,it shows that different varieties of sweet-potato possess different resis-tance to the disease.Among several varieties tested,it is found that Tai-nung No.3being a promising one,because it yields very high and is highly resistant to thedisease and to the drought.Although it is occasionally found to be susceptibleto the disease in the experiment field of Tsen-shi and is more commonly foundin the experiment field of Lin-kwei.The second variety is Tai-nung No.46 dueto its high degree of disease resistance. The results of preliminary tests indicate that the method of reproduction byold vines would decrease both in disease resistance and in yield within the samevariety. From tests conducted in two different fields,i.e.one at dry land and the ??other in the rice field,it shows that the discrepancies were found in the occur-rence of the disease and also in the relation of the method of manuring to thepercent of infection. Dipping cuttings in different disinfectants did not show any significant results.There are discrepancies in both plowed and sunned field test and two methodsof setting the vines test.These may be due to methods of treatment,landand varieties used for experiment being different. According to the results of date of planting tests in Peh-liu,it indicates thatthe occurrence and the development of the disease are closely related to the highhumidity and the high temperature.These climatic factors affect the health ofthe early growth of the plant which in turn would increase the disease resistance.It is suggested that the most suitable date for planting sweet-potato in Peh-liu isin the first decade of August. In comparing the weather records of the three districts—Lin-kwei,Peh-liu andTsen-shi—in relation to the date of early and last occurrences of the disease,itshows that an average air temperature of 23.4-28.4℃ is most suitable for the oc-currence of the disease,and an average relative humidity of 80 per cent is alsoneeded for the infection of the disease.Based on these facts,we may say thatsweet-potatoes in Lin-kwei are capable to be easily infected by the wilt organisms.except the last date of the infection would be preceded 10-20 clays.Any otherregions with similar climatic factors,it is also very possible to be infected. According to the results of 2-years experiments and facts from surveys,sug-gestive control measures are proposed: (1) excluding the disease by regulationthrough the use of quarantines enforced by an inspection station empowered torestrict or eradicate diseased roots and vines to prevent them from becomingsources of infection in disease-free districts; (2) selection of disease resistant varie-ties in combination with cultural practices such as the use of more ash,suitableamount of lime and manure,and suitable date of planting to enable plants toescape or resist the disease.For the present time,we suggest that the use of Tai-nung No.3 in Tsen-shi and Peh-liu may meet the requirement,and promotingthe method of root reproduction in place of an old method of reproduction byrepeating vine cuttings from old vines can prevent the degeneration of the plantand decrease the infection of the disease.

甘薯瘟是一种具有十余年历史的病害,不仅严重地威胁着广西东南部几县的甘薯生产,同时也严重影响了广东西南部和广西毗鄰的几个县的甘薯生产。甘薯瘟是一种枯萎类型的病害,是侵染維管束的脉管病害,首先侵染插条与土壤接触部位,先呈水漬狀,继而变黑腐爛并向上發展,叶色不正常或呈黄色而萎垂。此时薯藤的不定根根尖脫皮并开始腐爛,最后全株枯死。如在結薯块后才受病,除薯藤显现枯萎現象外,可向薯塊發展而呈褐色条斑,最后变黑腐烂,發出刺鼻臭辣气味。瘟薯的病原初步認为是由细菌和镰刀菌所致。细菌中可分为白色粘滑型,黄色粘滑型,白色干绉型和黄色干绉型;鐮刀菌中包括白色气生菌丝型,白色菌丝基層稍呈紫紅色型,粉紅色菌丝基層呈紫紅色型,无气生菌丝型等。但究以哪类为主导,抑系并發性呢?仍須进一步研究。薯瘟病原的傳播,初步認为有三种方式:带病薯块和薯苗,病土,及昆虫(如小象鼻虫等),其中以前二种較为肯定,后一种則仅属可能,仍有待+于进一步試驗观察。甘薯各品种間确具有不同的抗病性能,如台农三号的抗病性較强而产量最高,又能抗旱,台农46号的抗病性最高,但产量則較低,因而台农三号是最有希望的品种,但在岑溪試驗地,会略有發現蔓割病(可能是薯瘟病原之一),临桂試...

甘薯瘟是一种具有十余年历史的病害,不仅严重地威胁着广西东南部几县的甘薯生产,同时也严重影响了广东西南部和广西毗鄰的几个县的甘薯生产。甘薯瘟是一种枯萎类型的病害,是侵染維管束的脉管病害,首先侵染插条与土壤接触部位,先呈水漬狀,继而变黑腐爛并向上發展,叶色不正常或呈黄色而萎垂。此时薯藤的不定根根尖脫皮并开始腐爛,最后全株枯死。如在結薯块后才受病,除薯藤显现枯萎現象外,可向薯塊發展而呈褐色条斑,最后变黑腐烂,發出刺鼻臭辣气味。瘟薯的病原初步認为是由细菌和镰刀菌所致。细菌中可分为白色粘滑型,黄色粘滑型,白色干绉型和黄色干绉型;鐮刀菌中包括白色气生菌丝型,白色菌丝基層稍呈紫紅色型,粉紅色菌丝基層呈紫紅色型,无气生菌丝型等。但究以哪类为主导,抑系并發性呢?仍須进一步研究。薯瘟病原的傳播,初步認为有三种方式:带病薯块和薯苗,病土,及昆虫(如小象鼻虫等),其中以前二种較为肯定,后一种則仅属可能,仍有待+于进一步試驗观察。甘薯各品种間确具有不同的抗病性能,如台农三号的抗病性較强而产量最高,又能抗旱,台农46号的抗病性最高,但产量則較低,因而台农三号是最有希望的品种,但在岑溪試驗地,会略有發現蔓割病(可能是薯瘟病原之一),临桂試驗田也会發生过多次。老藤繁殖会降低同一品种的抗病性和产量,值得我們注意。在旱地和水田不同試驗地上所得結果,可初步说明發病情况很不一致,追肥与不追肥处理的發病率也不一致。藥剂处理种苗效应不显著,翻晒土壤及二种种植法試驗结果不一致,想与試驗方法、試驗地不同和供試品种不同有密切关系。薯瘟的發生与發展和高温潮湿有密切关系,而这些气候因素对于植株的早期生??長壮健及增强抗病性也有关系。初步建議,在北流地区以立秋(8月上旬)种植較为适当。从临桂雁山、北流和岑溪三处的气候記录,和薯瘟开始發生与最后發生日期的記录看来,可以初步說平均气温23.4—28.4℃最适于薯瘟的發生。相对湿度平均在80%以上亦适于本病的發生。由此可見,在临桂雁山地区,薯瘟可能是容易發生的,不过停止發病日期会提早10—20天。其他地区如有相似气温与湿度情况,那也是会發生薯瘟的。根据二年試驗結果和調查所得情况,初步提出防治薯瘟的办法如次:(1)应采取种薯和种苗的檢疫措施,禁止病区的种薯运往無病地区,以防蔓延;(2)选育抗病品种为主,結合先进的栽培管理法;多施草木灰,适当施用石灰,根外追肥,适期种植等,以增强植株的抗病性,避免病害的侵染,保証丰产。目前在岑溪及北流地区,可先推广种植“台农三号”品种,并提倡以薯塊育苗,切勿采用老藤繁殖,以避免植株的衰退,减少薯瘟的發生。

(1) Theses aboratory experiments were conducted in Shanghai front August 1959 to April 1960. In the present experiments for the control of rice weevil(Sitophilusoryzae) the following insecticides were used: DDT, lindane, PGP, aluminium oxide, Vk-powder and dipterex. Different dosages of these insecticides were used through various ways in testing wheat under different storage conditions to compare their effectiveness in protecting it against the rice weevil's attack. The results of these experiments...

(1) Theses aboratory experiments were conducted in Shanghai front August 1959 to April 1960. In the present experiments for the control of rice weevil(Sitophilusoryzae) the following insecticides were used: DDT, lindane, PGP, aluminium oxide, Vk-powder and dipterex. Different dosages of these insecticides were used through various ways in testing wheat under different storage conditions to compare their effectiveness in protecting it against the rice weevil's attack. The results of these experiments proved that lindane was the most effective; DDT was less effective; alum-inium oxide and Vk-Powder were not so effective as DDT, yet wholly non-toxic tothe humtan being. PGP was found to The polarization of electrodeposition of cadmium is affected by anions, such as NO ClO_3~-CH_3 CH(OH)~- COO~etc. The values of polarization decrease according to the fol-lowing series: This erlied is explained by suggestions in relating to the null point potential and the modern thoory of structure of water. be ineffective, if rice weevil was already pre-sent in the stored wheat. Dipterex was also ineffective against the rice weevil. (2) The effects of insect infestation on the quantity, quality, germinating ability and root development of stored wheat for a period of nine months had been studied. The results were as follows: Moisture content +1.25% Weight -8.3% Germinating ability -18.5% Number of young roots -0.4 piece Roots length -1Cm Thiamine -23.5% Acidity of fat +75. 3% (3) Suppression of germinating ability and root development of stored wheat by mixture with lindane was tested, and no ill effects were fodnd as they would have occurred in the case of BHG.

(1)就近年来各国所提倡使用于拌合粮食中的六种药剂,以不同的使用方法,对不同贮藏方法贮藏的小麦进行其防治米象的效力比较试验,结果以林丹的抑制米象繁殖效果最大,颇有提倡使用的价值,二二三次之,VK粉与氧化铝也均有抑制米象繁殖的效果,虽不及林丹及二二三有效,但有材料易得与对人体完全无毒等的优点;PGP在有米象存在时毫无杀灭米象的效果,敌百虫在本拌合试验中对米象也没有杀虫作用。 (2)米象为害贮藏小麦,对小麦的数量、质量、发芽率及根系发育均有影响: 水分增加 1.25%重量减少 8.3%发芽率减低 18.5%小麦幼根数减少 0.4根幼根长度减少 1厘米硫胺素减少 23.5%脂肪酸值增加 75.3%(3)林丹拌合小麦,对小麦发芽率及根系发育并没有象666那样发生任何阻害作用。

During the rice growing seasons in 1961, the authors conducted a series of ob-servations on the rice insect pests around the Dung-ting Lake of Hunan province. Atotal of 46 species of rice pests was found, the 45 insect species belonging to 18 dif-ferent families and 8 orders, the other pest belonging to order Oligochaeta. Amongthese pests, the rice stem borers (3 spp.), the leafhoppers (4 spp.), the grasshoppers(2 spp.), the rice leaf-rollers (2 spp.), the rice weevil (1 sp.), the leaf beetle (1 sp.),the...

During the rice growing seasons in 1961, the authors conducted a series of ob-servations on the rice insect pests around the Dung-ting Lake of Hunan province. Atotal of 46 species of rice pests was found, the 45 insect species belonging to 18 dif-ferent families and 8 orders, the other pest belonging to order Oligochaeta. Amongthese pests, the rice stem borers (3 spp.), the leafhoppers (4 spp.), the grasshoppers(2 spp.), the rice leaf-rollers (2 spp.), the rice weevil (1 sp.), the leaf beetle (1 sp.),the thrips (2 spp.), and the Annelida (1 sp.), are considered as major pests of rice in thislocality. This paper not only deals with a comparison of the pest populations and com-munities between rice fields, planted to early rice, middle rice and late rice, but alsodeals with a similar comparison between the older and newer rice fields. The resultsmay be briefly summarized as follows: 1. In all the rice fields, the period of numerical summit of each insect populationdoes not appears at same time. 2. In all the rice fields, the important components of each insect community weredifferent. 3. In the older or newer rice fields, the communities and populations of rice insectpests were different. 4. Due to different history of the rice fields, different biological characters of theinsect pest, and different environment (climatic or dietary factors), the communities andpopulations of rice insect pests were also different. The causes of their difference weredescribed.

本文记述了1961年在湖南滨湖区水稻生长季节中每五日调查稻虫的结果。 查明该地区共有水稻害虫46种。田间虫口密度大小因稻田类型和季节的不同而异,早稻田和中稻田有7种害虫数量较大,一季晚稻田有9种,双季晚稻田有4种。 全年内各种主要稻虫种群数量高峰出现的时间、次数、以及峰态的高低均有不同。种群数量较大的害虫,依其高峰期出现的迟早顺序,有稻象虫、稻蝗、二化螟、褐稻虱、黑尾叶蝉、稻苞虫、三化螟和粉白飞虱等。 在不同历史条件的稻田里,稻虫群体组成及数量互有差异。老稻田稻虫种类较复杂,主要稻虫虫口密度较高。新开稻田稻虫种类较少(如颤蚓、三化螟等),而叶蝉和飞虱等较多。 分析了稻田历史条件、稻由生物学特性、还及气候和食料条件,对于稻虫群体组成及种群数量变动的影响。

 
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