捕食螨对烟草育苗期蓟马防治效果研究     

潘义宏  饶骏晨  孙兴权  杨俊  王柱石 《中国农学通报》2018,34(16):131-134

为明确捕食螨对烟草蓟马的防治效果,本文调查了云南泸西中枢育苗期蓟马发生情况及种类,并对比研究了不同捕食螨释放数量、释放方式及携带微生物菌剂的防治差异。结果表明：蓟马种类主要为西花蓟马,其次为八节黄蓟马,发生高峰期在4月中旬左右;捕食螨投放100头/盘防治效果最好;均匀撒施捕食螨对蓟马防治效果显著优于开袋放置及空白对照(P<0.05);捕食螨搭载球孢白僵菌对蓟马控制效果最好,搭载金龟子绿僵菌与不带菌相差不大,但均显著高于空白对照(P<0.05)。  相似文献   

北京地区发现番茄斑萎病毒   总被引：6，自引：0，他引：6  

李飞  吴青君  徐宝云  谢文  王少丽  张友军 《植物保护》2012,38(6):186-188

通过采用特异快速试纸条以及进一步的RT-PCR和序列测定证实,在北京局部地区的辣椒和茄子上已发生番茄斑萎病毒,这两种作物上同时发生的蓟马种类主要为西花蓟马,并且携带该病毒。番茄斑萎病毒病是极其危险的一种病害,可对作物造成毁灭性灾害。建议有关部门立即采取相应的预防与管理措施,防止其扩散蔓延。  相似文献   

Development of a bioassay system for monitoring susceptibility in Thrips tabaci   总被引：1，自引：0，他引：1  

Rueda A  Shelton AM 《Pest management science》2003,59(5):553-558

A system is described for collecting adult and larva of Thrips tabaci from onion foliage into insecticide-treated vials to evaluate susceptibility to insecticides. The thrips insecticide bioassay system (TIBS) allows one to treat vials and store them for 3 weeks before thrips are collected. Depending on the population density in the field, collection of the insects for the test required from 3-6 h for one person. Assays are read after 24h. This system was used in 1997 and 1998 in commercial onion fields in Honduras and Nicaragua, and TIBS was sensitive enough to detect differences to the insecticides tested, to thrips life stages and to different generations within an onion-growing season. Data collected suggest that there were not serious problems with thrips insecticide resistance, with the possible exception of cypermethrin in Nicaragua which had a resistance ratio (RR) value of 26.9 for adult thrips. The largest RR values were observed at the end of the growing season, and this may be caused by the season-long selection by insecticide sprays. The mortality of adults and larvae followed the same general pattern, but the ratio between larvae and adults differed for each chemical group.  相似文献   

西花蓟马对不同颜色的趋性及蓝色粘板的田间效果评价   总被引：23，自引：2，他引：23       下载免费PDF全文

吴青君  徐宝云  张友军  张治军  朱国仁 《植物保护》2007,33(4):103-105

从18种颜色中筛选出对西花蓟马诱集效果最好的海蓝色,波长为438.2～506.6 nm。并将其研制成为诱虫板商品,田间使用效果优于黄板和国外产蓝板,可用于西花蓟马的防治和种群监测。  相似文献   

花粉和植物不同生长阶段对西花蓟马种群的影响   总被引：2，自引：0，他引：2  

郅军锐  任顺祥 《植物保护》2006,32(3):39-42

在凤仙花的Impulse Orange和Cajun Carmine品种上开展了花粉和植物不同生长阶段对西花蓟马种群的影响。结果表明:在植物未开花前,添加花粉和不添加花粉西花蓟马的种群数量差异显著,添加花粉能显著增加两个品种上西花蓟马的种群数量,其西花蓟马数量分别为174.50、43.67头,而未添加花粉时分别为138.33头和27.00头。在植物开花后,添加花粉对西花蓟马的种群数量虽有一定影响,但差异不显著。植物不同生长发育阶段对西花蓟马的种群数量影响很大,无论是添加花粉还是不添加花粉,在两个品种上均表现为开花后的数量显著大于开花前的数量,说明凤仙花植物本身的花对西花蓟马种群的迅速增长影响很大。  相似文献   

北京地区西花蓟马发生为害调查研究   总被引：18，自引：2，他引：18  

任洁  雷仲仁  张令军  李红岭  花蕾 《中国植保导刊》2006,26(5):5-7

通过2003～2005年对北京地区西花蓟马发生为害情况进行的系统调查监测,发现发生地由2003年的2个点扩大为2005年的6个区,呈蔓延扩散趋势;为害的植物也从最初的辣椒到2005年的28科65种,以葫芦科的荷兰黄瓜、甜瓜及十字花科的白萝卜叶片受害最为严重。另外,就不同寄主上西花蓟马的发生为害动态进行了系统调查,初步分析了其在自然条件下的种群消长规律。  相似文献   

Enhanced fumigant toxicity of p-cymene against Frankliniella occidentalis by simultaneous application of elevated levels of carbon dioxide     

Janmaat AF  de Kogel WJ  Woltering EJ 《Pest management science》2002,58(2):167-173

The fumigant toxicity of the essential oil component p-cymene was assessed against Western Flower Thrips, Frankliniella occidentalis. F occidentalis adult females, first- and second-instar larvae and eggs were exposed for 2, 24 and 48 h to combinations of three p-cymene doses and two carbon dioxide levels (ambient, 10%). Additional experiments were conducted on F occidentalis adult females with lower carbon dioxide levels (ambient, 2%, 4%, 6%) applied in combination with p-cymene. Combined applications of p-cymene and carbon dioxide were found to increase significantly the fumigant toxicity of p-cymene against both adult female and larval thrips, but not thrips eggs. An increase in exposure time also led to an increase in adult and larval mortalities in both the p-cymene alone and combined treatments. These results indicate that by combining applications of the essential oil component, p-cymene, with increased carbon dioxide, it may be possible to achieve toxicity levels similar to those of standard chemical fumigants.  相似文献   

Evaluation of medium treatments for management of Frankliniella occidentalis (Thripidae: Thysanoptera) and Bradysia coprophila (Diptera: Sciaridae)     

Scott W Ludwig  Ronald D Oetting 《Pest management science》2001,57(12):1114-1118

Two greenhouse experiments, each comprising two trials, were conducted to evaluate medium drenches of insect growth regulators and conventional insecticides to reduce emergence of adult western flower thrips, Frankliniella occidentalis (Pergande), and fungus gnats, Bradysia coprophila (Lintner) from the medium. In the insect growth regulator trials, diflubenzuron and pyriproxyfen provided the greatest reduction in thrips emergence, and fenoxycarb, pyriproxyfen and azadirachtin resulted in the most significant reduction of fungus gnat emergence. Treatments with the contact insecticides, methiocarb and chlorpyrifos, resulted in the greatest reduction of thrips and fungus gnat populations. These data suggest that fungus gnats are susceptible to many compounds used in commercial greenhouse production. Even though medium drenches are not currently used for thrips management, drenches with diflubenzuron, pyriproxyfen, methiocarb and chlorpyrifos could aid in reducing thrips populations in greenhouse management programs. © 2001 Society of Chemical Industry  相似文献   

蓟马的分子鉴定和种群遗传学研究进展     

何嘉  刘新芝  杜振勇  刘巧巧  李虎  杨海林  彩万志 《植物保护学报》2023,50(4):843-857

蓟马是一类个体微小的昆虫,形态学特征观察困难,种内遗传多样性高,且部分害虫类蓟马寄主广泛,繁殖能力强,为害严重,已成为重要的农林类害虫。采用分子生物学手段对蓟马进行物种鉴定,可以解决传统形态学鉴定困难、局限性较大等问题,能提高物种鉴定的效率与准确性。目前,关于蓟马分子生物学鉴定的研究较多,其中,基于线粒体细胞色素氧化酶亚基（ I cytochrome oxidase I,COI）基因片段的DNA条形码技术被广泛用于蓟马的快速准确鉴定、属内近缘种的区分及不同品系或生物型的鉴别。此外,开展蓟马类害虫种群遗传学的研究不仅有利于全面了解其遗传分化、适应性、入侵来源和扩散路径,还可为制订合理有效的监测预报和综合防治策略提供理论依据。目前,多种蓟马的种群遗传学研究表明地理隔离、寄主植物和微生物等因素影响其种内和种间的遗传多样性和遗传分化。本文综述了国内外有关蓟马的DNA条形码鉴定与种群遗传学研究进展,对目前蓟马物种鉴定中存在的问题进行讨论,并对未来的发展趋势进行展望。  相似文献   

KASP genotyping and semi-quantitation of G275E mutation in the α6 subunit of Thrips palmi nAChR gene conferring spinetoram resistance     

Pan Shi  Xiu-Jing Shen  Jin-Cui Chen  Yu-Jie Zhang  Li-Jun Cao  Bin-Shuang Pang  Li-Hua Liu  Ming-Ming Zhang  Ary Anthony Hoffmann  Shu-Jun Wei 《Pest management science》2023,79(5):1777-1782

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