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1.
记述了采自伊朗的角额盲蝽属1新种,红斑角额盲蝽Acrorrhinium rufimaculatum sp.nov..成虫雄虫彩色照片、头侧面观及雄性外生殖器特征图一并给出.新种模式标本保存在南开大学昆虫标本室.正模♂,伊朗,Loc.Rafsanjan,2008-05-20,M.R.Mehrnejad采.词源:新种种名源自楔片显著红色圆斑. 相似文献
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中国四种角盲蝽的识别 总被引:2,自引:0,他引:2
角盲蝽属Helopeltis(我国已有文献中又有称为“刺盲蝽属”者)昆虫是一类重要的害虫,属于半翅目盲蝽科(Miridae)单室盲蝽亚科(Bry-ocorinae)。此属为泛热带分布。目前已知在全世界为害经济作物约20多种;在国内除严重为害腰果外,还为害其它多种作物,如可可、咖啡、茶树备石榴、红毛榴莲、胡椒、洋蒲桃及芒果等[1,2],主要以成、若虫刺吸植物的嫩叶。嫩梢及幼果等,造成被害株叶片的腐坏、枯萎以及大小不同的产量损失,严重为害时,可造成绝收[3]。由于此类盲蝽在体色上常有种种变异,并略具… 相似文献
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我国棉花盲蝽生物学特性的研究进展 总被引:1,自引:0,他引:1
近10年来,盲蝽在我国由次要害虫上升为了主要害虫,在棉花、枣、葡萄等多种作物生产上造成了严重危害。自2008年以来,在公益性行业(农业)科研专项经费项目的支持下,对盲蝽人工饲养技术、个体发育与繁殖、食性、寄主选择行为、取食行为、性信息素通讯行为、交配与产卵行为、飞行与扩散能力、滞育与越冬习性、年生活史等生物学特性进行了系统研究,为研发盲蝽预测预报和综合防治技术提供了必要的科学依据。 相似文献
4.
本文记述了曼盲蝽属1915的7个新种;环曼盲蝽,脊曼盲蝽;狭长曼盲蝽,黄翅曼盲蝽;胡桃曼盲蝽;瑰环曼盲蝽;赤环曼盲蝽。提出3个新组合;均由Pachypeltis Signoret属移入本属,模式标本存放于南开大学生物系昆虫标本室。 相似文献
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本文共记述盲蝽科盲蝽亚科的厚盲蝽属(Eurystylus stal)和拟厚盲蝽属(Eurystylopsis Poppius)的中国种类共7种,其中包括1个新种:中国拟厚盲蝽Eurystylopsis chinensis sp.n.(模式产地:四川、云南),1个中国新记录种:缅甸厚盲蝽Eurystylus burmanicus(Distant)。提出1项新组合关系:即原已由Kititschenko(1913)移人Eurystylus属的Calocoris clavicornis Jakovlev应归于Eurystylopsis属中。并肯定淡缘厚盲蝽Eurystylus costalis Stal可严重破坏枣花,影响枣树结实,造成明显的减产。 相似文献
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记述了中国分布的薇盲蝽属Monalocoris5个种,其中包括3新种:黄盾薇盲蝽M.fulviscutellatus sp.nov.、黑黄薇盲蝽M.nigrofiavis sp.nov.、赭胸薇盲蝽M.ochraceus sp.nov.和中国1新纪录种:大岛薇盲蝽M.a-mamianus Yasunaga,2000;以及宽垫盲蝽族6属9种,其中包括1人新纪录属:榕盲蝽属Dioclerus Distant,1910和2个新纪录种:泰榕盲蝽Dioclerus thailandensis Stonedahl,1988、四斑芋盲蝽Ernestinus tetraxtigma Yasunaga,2000。 相似文献
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本文记载内蒙古植盲蝽属(Phytocoris Fall.)14种,其中包括突植盲蝽Ph.(Ph.)procerussp.n.、郑氏植盲蝽Ph.(Ph.)zhengi sp.n.、柠条植盲蝽Ph.(Ktenccoris)caraganae sp.n.、蒙古植盲蝽Ph.(K.)mongolicus sp.n.、褐植盲蝽Ph.(K.)nigritus sp.n.、红褐植盲蝽Ph.(K.)rubiqionsus sp.n.、砂地植盲蝽Ph.(K.)desertorum sp.n.、贺兰山植盲蝽Ph.(K.)alashanensissp.n.8个新种及5个新纪录种。 相似文献
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本文共记载:1,盲蝽科纹唇盲蝽属Charagochilus Fieber 7个中国种,其中包括3个新种:邻纹唇盲蝽Ch. similis sp. nov., 玉龙纹唇盲蝽Ch. yulongensis sp. nov., 淡领蚊唇盲蝽Ch. pallidicollis sp. nov.;1个中国新记录种:狭领纹唇盲蝽Ch. angusticollis Linnavuori;将Proboscidocoris taivanus Poppius 1915移入Charagochilus属;并对Charagochilus gyllenhali (Fallen)的中国记录提出疑问。2,喙盲蝽属Proboscidocoris Reuter 1种:马来喙盲蝽P. malayus Reuter(中国新记录)。 相似文献
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Maria YulianaLien-Huong Huynh Quoc-Phong HoChi-Thanh Truong Yi-Hsu Ju 《Carbohydrate polymers》2012,87(4):2576-2581
Starch attracts public attention as a replacement of fossil fuel in polymer industries because it is renewable, biodegradable and nontoxic. In this study, the isolation of starch from defatted cashew nut shell (CNS) using wet milling was reported. A product that contains 85.01 wt.% starch was recovered from the defatted CNS. Various analyses were performed on the starch to characterize its physicochemical properties. It was found that the starch obtained possesses high amylopectin content (75.35 wt.%), which supports the results of thermal analysis that proved the high crystallinity of starch. Morphological study of the starch showed that bonded resins were found attached to the starch granules. Due to high crystallinity, the presence of bonded resins and low cost, starch from defatted CNS can be considered as a prospective renewable material in polymer industries, with potential to compete with current feedstock such as potato and corn. 相似文献
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A novel rotator trap was evaluated to determine the diel activity patterns and physiological state of adult female mosquitoes in St. Augustine, FL, U.S.A. Culex nigripalpus were most active from 19:00‐21:00, followed by 1:00‐3:00, based on collections from the novel rotator trap. Furthermore, analysis of the physiological state of female mosquitoes collected by the novel rotator trap suggested that non‐parous (nulliparous) host‐seeking mosquitoes were more frequently active in the 21:00‐23:00 and 09:00‐19:00 time frames. Parous host‐seeking mosquitoes were more frequently collected from 19:00‐21:00 and 1:00‐3:00. A low abundance of gravid females was collected by the rotator trap, so analysis of their activity periods was inconclusive. These results indicate that the novel rotated trap could be used to detect the diel activity patterns of adult mosquitoes in mosquito control programs and more testing should be conducted in the future. 相似文献
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我国12种蚊幼虫上颚形态和鉴别特征的研究 总被引:1,自引:0,他引:1
本文对8种库蚊和按蚊、伊蚊、阿蚊及杵蚊各属代表种的4龄幼虫上颚进行扫描电镜观察.概述了上颚的外部形态,并提出了各蚊种的鉴别特征.指出幼虫上颚具有显著的种间差异,具有重要的分类学意义,讨论了上颚的结构与功能的关系.通过对上颚结构和取食方式的比较研究,从生物学角度,提出蚊科进化关系. 相似文献
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A selective medium containing a combination of starch, milk proteins, and streptomycin was used as a reliable indicator for the presence of Bacillus sphaericus in soil samples collected from a mosquito habitat where this pathogen was previously applied. The medium can also be used as an indicator substrate to retrieve B. sphaericus from infected mosquito larvae. Results show that B. sphaericus remains viable and infective 9 months after application as a larvacidal agent of mosquitoes in a roadside ditch. 相似文献
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We evaluated the oviposition response of gravid Aedes albopictus (Skuse) to six organic infusions. Laboratory and field‐placed oviposition cups baited with water oak (Quercus nigra L.), longleaf pine (Pinus palustris P. Mill), or St. Augustine grass (Stenotaphrum secundatum (Walt.) Kuntze), as well as binary infusion mixtures of each, were used. In addition, a triple‐cage, dual port olfactometer was used to measure upwind response of gravid individuals to these infusions. We found that Ae. albopictus deposited more eggs in infusion‐baited cups compared with water alone. Moreover, significantly more eggs were laid in the water oak and a water oak‐pine mixture as compared with the St. Augustine grass infusion in laboratory bioassays. However, a negative upwind response was observed with longleaf pine infusion in the olfactometer. In field cages, significantly more eggs were deposited in infusion‐baited cups as compared with water alone and a greater percentage of eggs were deposited in cups containing a water oak and the water oak‐longleaf pine mixture as compared with cups containing single infusions or their mixtures. 相似文献
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本文阐述了植物源驱蚊物质的主要活性成分、具有驱蚊作用的植物种类;讨论了植物源驱蚊剂的开发现状、存在问题及影响驱蚊效果的因素;提出了未来驱蚊剂的研究热点和方向。 相似文献
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Lowering food consumption by larvae has been shown to (1) prolong the duration of development in Aedes aegypti, (2) increase the time elapsed between emergence of males and females, (3) produce smaller mosquitoes with a reduced lipid content per milligram of body weight, and (4) bring about a significant decrease in the percentage composition of 18:0 and 18:2 fatty acids. 相似文献
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Multiple buds have been induced from cotyledonary nodes of cashew, Anacardium occidentale L. Maximum number of buds were initiated on Murashige & Skoog's (MS) medium supplemented with 117 mM sucrose, 14.6 mM maltose and 22.2 M BA. The buds were harvested at each subculture after elongation on MS medium supplemented with 100 ml l-1 coconut water, 14.6 mM maltose, increased sucrose (146 mM) and decreased BA (4.4 M). Excised microshoots were rooted in vitro on MS medium in the presence of 117 mM sucrose, 2.9 M IAA and 4.9 M IBA. Plantlets have been successfully transferred to soil and have been established in the field. 相似文献
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Cultural conditions affecting the induction of rhizogenesis in vitro were evaluated in cashew (Anacardium occidentale L.) shoot-node-derived microshoots. The application of auxins was essential for the formation of adventitious roots. A 5-d indole-3-butyric acid (IBA) induction period was more suitable than continuous IBA treatment or a shorter induction period. N6-[2-Isopentenyl]adenine in low concentrations (0.3 – 1 µM) in the root induction medium supported root formation. Precultivation of microshoots with gibberellic acid (GA3) suppressed the subsequent rhizogenesis. Activated charcoal did not affect rooting. No significant differences in rooting abilities of cashew shoots were observed between 25, 29 and 35 °C and roots did not develop at 19 °C. Salts of low osmotic composition were more suitable than richer media. Microshoots originated from cotyledonary nodes showed higher rooting when compared to standard microshoots. 相似文献
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Torquato D.S. Ferreira M.L. Sá G.C. Brito E.S. Pinto G.A.S. Azevedo E.H.F. 《World journal of microbiology & biotechnology》2004,20(5):505-507
Crude and purified cashew tree gum were tested for their antimicrobial activity against bacteria, yeast and fungi. Their use was also evaluated as a carbon source for microbial growth. Cashew gum presented only a weak activity against Saccharomyces cerevisiae and no activity was observed against all other microorganisms tested. The possibility that removal of anacardic acid present in the raw gum during purification may explain the negative results obtained was discussed. When purified cashew tree gum was used as carbon source, only Listeria monocytogenes, Saccharomyces cerevisiae and Kluyveromyces marxianus did not grow after 5 days of incubation. 相似文献