Distinct contributions of A314S and novel R667Q substitutions of acetylcholinesterase 1 to carbofuran resistance of Chilo suppressalis Walker          下载免费PDF全文

Shu‐Mei Dai  Cheng Chang  Xin‐Yi Huang 《Pest management science》2016,72(7):1421-1426

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Identification of Putative Carboxylesterase and Glutathione S-transferase Genes from the Antennae of the Chilo suppressalis (Lepidoptera: Pyralidae)     

Su Liu  Zhong-Jun Gong  Xiang-Jun Rao  Mao-Ye Li  Shi-Guang Li 《Journal of insect science (Online)》2015,15(1)

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Geographic susceptibility of Chilo suppressalis Walker (Lepidoptera: Crambidae), to chlorantraniliprole in China     

Jianya Su  Zhenzhen Zhang  Min Wu  Congfen Gao 《Pest management science》2014,70(6):989-995

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性诱剂防治二化螟效果的研究   总被引：4，自引：0，他引：4  

洪峰  张艳菊  张洪文  陈微  柴赫男 《黑龙江农业科学》2009,(6):72-73,77

在黑龙江省尚志市和方正县对应用二化螟性诱剂诱杀雄性二化螟成虫进行了试验。结果表明：二化螟性诱芯田间诱杀持续期为31-36 d,每晚最大诱蛾量分别为1120头和590头。性诱剂诱杀区枯心苗率、虫株率和白穗率与对照区相比差异显著。性诱剂诱杀区和常规施药防治区增产率分别为20.7%和19.2%,投入产出比分别为1∶22和1∶13。研究表明：性诱剂诱杀效果较好,与化学农药防治效果相当。应用二化螟性诱剂来防治二化螟,达到了节本、简便、增产、增效、增收的目的,是一项可以大力推广的绿色植保技术。  相似文献   

3种二化螟防控措施的效果及效益分析     

邹剑明  黄志农  张宗泽  石年珍  文吉辉  李忠良  刘学仙  邹如戈 《现代农业科技》2009,(19):159-161

在湘阴试验示范基地对二化螟开展了3种不同防控技术措施的试验,比较分析了二化螟性诱剂、频振式杀虫灯和常规药剂的防治效果及经济效益。结果表明：性诱剂与杀虫灯对该虫的防控效果较好,可持续控制该虫种群的发展,其经济和生态效益明显。  相似文献   

田间高效诱集二化螟雄蛾的性信息素诱芯的筛选     

林贤文  周瀛  赵敏  朱金良  杜永均  程家安  祝增荣 《浙江农业学报》2013,25(5):0

1浙江大学 昆虫科学研究所, 浙江 杭州 310058;2浙江省桐庐县农业技术推广中心, 浙江 桐庐 311500;3浙江省嘉兴市农业经济局, 浙江 嘉兴 314000;4温州医学院健康与环境生态研究所, 浙江 温州 325035;5中国科学院 华南植物研究所, 广东 广州 510650  相似文献   

稻螟赤眼蜂rDNA特异引物设计及诊断引物在赤眼蜂分子鉴定中的应用   总被引：2，自引：0，他引：2  

郭震  阮长春  臧连生  张帆  靳锋云 《中国水稻科学》2012,26(1):123-126

 根据稻螟赤眼蜂(Trichogramma japonicum)的rDNA ITS2序列,利用软件Primer Premier 5.0设计出该寄生蜂的特异引物。通过PCR条件的优化,设计的引物能稳定地扩增出稻螟赤眼蜂的特异性条带,大小为256 bp。应用设计的稻螟赤眼蜂特异引物以及报道的松毛虫赤眼蜂(T. dendrolimi)、玉米螟赤眼蜂(T. ostriniae)和螟黄赤眼蜂(T. chilonis)特异引物对赤眼蜂样品进行PCR扩增分析。结果表明,4对特异引物可从单头蜂稳定地扩增出各自蜂种的目的DNA条带,并且分子鉴定结果与形态学鉴定结果完全一致。  相似文献   

建国以来江西二化螟的发生、危害及药剂防治回顾   总被引：1，自引：0，他引：1  

舒平平  姚英娟  朱雪晶  曾小军 《江西农业学报》2011,23(7):129-132

简要分析了我国水稻螟虫发生和为害的历史,阐述了江西二化螟暴发成灾现状及其种群演变规律;在总结二化螟药剂防治经验的基础上,提出了防治抗性二化螟的替代化学药剂。  相似文献   

Photodegradation of emamectin benzoate and its influence on efficacy against the rice stem borer, Chilo suppressalis     

Jun Zhu  Yueping He  Mingxing GaoWeijun Zhou  Jun HuJinliang Shen  Yu Cheng Zhu 《Crop Protection》2011,30(10):1356-1362

Emamectin benzoate, a novel insecticide with characteristics of translaminar movement into plant leaf tissue, was derived from the avermectin family with improved thermal stability, greater water solubility and a broader spectrum of insecticidal activity than avermectin. To quantify UV photodegradation of emamectin benzoate, HPLC analysis was conducted to quantify residues of MAB1a, the major component in emamectin benzoate, after exposure to UV light for different lengths of time. Results showed both MAB1a concentration and length of UV light exposure (0-120 h) had significant impacts on photodegradation rate. The degradation rate increased as exposure duration increased, but decreased as initial MAB1a concentration increased. Four UV protectants, kojic acid, sodium ligninsulfonate, soybean lecithin and milk, were evaluated for their effect on UV degradation. Results showed that kojic acid could effectively reduce the photodegradation of MAB1a. In addition, the photodegradation of emamectin benzoate was also examined for its influence on the efficacy against the rice stem borer, Chilo suppressalis. The results of the bioassays were consistent with those of HPLC analysis. The initial concentration of emamectin benzoate and exposure duration to UV light both had significant influences on the efficacy against C. suppressalis. As the UV exposure time increased, the efficacy of emamectin benzoate against C. suppressalis decreased. The results indicated that UV photodegradation has a significant effect on the efficacy of emamectin benzoate against C. suppressalis and the effect is concentration-dependant. In addition to understanding the critical factor of UV exposure length, this study also showed that maintaining emamectin benzoate concentration above a certain level in the formulation and the application solution, and applying UV protectants may reduce photodegradation and increase efficacy against target pests.  相似文献   

二化螟越冬幼虫在稻株内的分布及其控制技术研究   总被引：1，自引：0，他引：1  

黄水金  刘剑青  秦文婧  张华满  陈琼 《江西农业学报》2010,22(11)

研究了二化螟越冬代幼虫在不同虫口密度田块和不同受害程度稻株内的分布情况以及农事操作技术措施对越冬二化螟的防治效果。结果表明:二化螟幼虫在水稻植株上的分布数量表现为随着稻株离地面高度的升高而减少,且这种分布趋势与田间的二化螟幼虫密度无关;二化螟幼虫在不同受害程度的稻株上的分布均以5~10 cm的稻株部位最多。在翌年春季,在稻草上越冬的二化螟出蛾率(36.44%)高于在稻桩上越冬的二化螟出蛾率(27.11%),但是在稻桩上越冬二化螟的出蛾数量(138.25)极显著高于在稻草上越冬二化螟的出蛾数量(34.25)。"火烧+堆沤"(冬前在田间对稻草进行焚烧,翌年早春再进行堆沤)处理和旋耕处理对越冬二化螟的防治效果均较好,防效分别为71.17%和66.25%,显著高于单独焚烧稻草或单独堆沤处理的防治效果。  相似文献