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蠋蝽对榆紫叶甲的捕食作用 总被引：1，自引：0，他引：1
《中国森林病虫》2016,(1)
榆紫叶甲Ambrostoma quadriimopressum Motschulsky是危害榆树Ulmus spp.的重要食叶害虫,通过室内外试验探讨蠋蝽Arma chinensis Fallou对榆紫叶甲的捕食能力。在室内,选择饥饿24 h的蠋蝽3,5龄若虫、成虫3个虫态,对10,20,30,40头共计4个密度的榆紫叶甲幼虫的捕食量测定,结果在不同的榆紫叶甲密度梯度下,蠋蝽的捕食量差异不显著;蠋蝽3,5龄若虫和成虫(各5头)对榆紫叶甲卵的捕食量分别为(9.54±3.39)粒、(50.69±25.96)粒和(50.98±21.37)粒,其中3龄若虫捕食量小于成虫和5龄若虫,差异显著。野外释放蠋蝽后榆紫叶甲得到了有效控制。 相似文献
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垂榆是白榆(Ulmus pumila)的变种(Ulmus pumila var.pendulaRehd.),从新疆引种到内蒙古。由于垂榆在集通铁路沿线未有嫁接栽植,从1999年至2003年,在商都铁路苗圃进行了较系统的嫁接试验,并用该苗木在集通铁路沿线的锡林郭勒盟白旗和桑根达来地区进行了栽植试验,取得了具有实用价值的试验数据,为该地区栽植垂榆提供了宝贵的经验。 相似文献
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白榆(Ulmus Pumila L.)又称家榆,是我国特别是东北、华北和淮北广大平原区绿化、用材、防护林以及盐碱地造林的主要树种。但由于榆紫叶甲的猖獗危害,迄今吉林省西部榆树人工林已残留无几,随着 相似文献
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实验利用聚丙烯酰胺凝胶电泳(polyacrylamide gel electrophoresis,PAGE)技术对白榆(Ulmus pumila L)、垂榆(Ulmus pumilavar PeMdul)、欧洲大叶榆(Ulmus laevis Pall)、圆冠榆(Ulmus densa Litv)等4种常见榆树叶片的过氧化物酶进行分析测定,得出4种榆树过氧化物酶的谱带,并用排序分析法对其相似性做出分析,以此来鉴定出4种榆树的不同之处,并对4种榆树的形态特征进行了比较及鉴别和分类。 相似文献
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Journal of Pest Science - The larvae of Curculio elephas (Coleoptera: Curculionidae) and Polyphylla fullo (Coleoptera: Scarabaeidae) are major agricultural pests of chestnut and roots of cultivated... 相似文献
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Pathipati Usha Rani Thanniru Venkateshwaramma Peta Devanand 《Journal of pest science》2011,84(2):235-247
Compounds extracted from the leaves of coconut palm, Cocos nucifera L. (Arecales: Arecaceae) and the Indian almond, Terminalia catappa L. (Myrtales: Combretaceae) were assessed as potential grain protectants against four major pests of stored grains, Sitophilus oryzae (L.) (Coleoptera: Curculionidae), Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae), Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae), and Callosobruchus chinensis (L.) (Coleoptera: Bruchidae). The crude leaf extracts and their fractions were obtained by solvent elution and bioassayed
in the laboratory, focusing on (a) the duration of protection and (b) their effects on progeny production. Results showed
that adults of C. chinensis, S. oryzae, and T. castaneum were equally susceptible to the fumigant toxicity of C. nucifera and T. catappa crude extracts as well as their column eluted fractions. On the contrary, adults of R. dominica showed tolerance to all the extracts tested in both fumigation and contact mode bioassays. Cocos nucifera crude extracts were highly effective in offering long-term protection in residual toxicity trials and along with the crude
extracts of T. catappa showed strong repellent properties against the tested species except for R. dominica in a Y-tube olfactometer. Generally, the chromatographic fractions of crude leaf extracts eluted with ethyl acetate were
significantly more effective than methanol, chloroform or hexane-eluted fractions. Further, all the tested plant extracts
demonstrated a negative impact on several biological parameters such as feeding activity and progeny production of the tested
species. These results highlight the potential of C. nucifera and T. catapa extracts as potent insecticides, feeding deterrents and progeny production inhibitors and consequently are suitable for the
control of pests in stored commodities. 相似文献
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讨论了危害林木的几种叶蜂的学名变动,建立了1个属级新异名,3个种级新异名和3个新组合;描述了黄腹简栉叶蜂的雌性并编制了简栉叶蜂属已知种团和中国已知种的检索表． 相似文献
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K. Purrini 《Journal of pest science》1976,49(5):69-70
On the microsporidian pathogens of Coleoptera living in grain and meal in Yugoslavia
In some mills in the Kosova district, Yugoslavia, the species of Nosematidae (Microsporidia) infecting the grain and meal eating larvae of Coleoptera were investigated. A view of all Nosematidae of Coleopterous meal and grain pests found hitherto by the author and by other authors is given. Informations are maded on the different pathogens. Two new species,Nosema albanica n. sp. undPlistophora manningeri n. sp., are described. 相似文献