信息素迷向法规模化防治梨小食心虫   总被引：4，自引：1，他引：3  

周洪旭  李丽莉  于毅 《植物保护学报》2011,38(5):385-389

梨小食心虫是梨树和桃树上一种重要的蛀食性害虫,为了推动果园害虫的无公害防治,2010年在山东省莱阳市的桃园和梨园应用信息素散发器对梨小食心虫进行了迷向防治研究。在应用信息素散发器的桃园与梨园中,梨小食心虫发生数量明显低于对照园,使用密度增加,梨小食心虫的发生数量降低,迷向率增加。每公顷施用信息素散发器450、900、1350根的桃园,对梨小食心虫的迷向率分别为67.80%、80.14%、89.29%,而梨园中对梨小食心虫的迷向率分别为84.17%、93.41%、98.17%。桃园与梨园施用信息素散发器后,梨小食心虫的蛀果率明显低于对照园,桃园与梨园对梨小食心虫的防治效果分别在40.34%～73.57%和54.24%～92.38%之间。研究表明,梨园中信息素散发器对梨小食心虫的防治效果高于桃园。  相似文献   

Studies on the development of a mating disruption system to control the tomato leafminer, Tuta absoluta Povolny (Lepidoptera: Gelechiidae)     

Vacas S  Alfaro C  Primo J  Navarro-Llopis V 《Pest management science》2011,67(11):1473-1480

BACKGROUND: The tomato leafminer (Tuta absoluta Povolny) has rapidly colonised the whole Mediterranean and South‐Atlantic coasts of Spain, and it has become a key problem in both outdoor and greenhouse crops. New control methods compatible with biological control are required, and mating disruption appears to be a perfect method in current agriculture, as it is an environmentally friendly and residue‐free technique. IPM packages tested have included the use of pheromones to detect populations, but there has not been much previous research on mating disruption of T. absoluta. In this work, pheromone doses varying from 10 to 40 g ha^?1, emitted at a constant rate over 4 months, were tested in greenhouses with different levels of containment in order to evaluate the efficacy of mating disruption on T. absoluta. RESULTS: Trials on containment level revealed that the flight of T. absoluta was satisfactorily disrupted with an initial pheromone dose of 30 g ha^?1, and levels of damage did not significantly differ from those in reference plots with insecticide treatments. Later efficacy trials confirmed previous experiences, and release studies showed that control of damage and flight disruption were taking place when releasing at least 85 mg pheromone per ha per day. CONCLUSION: Effective control using pheromone application against T. absoluta can be achieved, in greenhouses with high containment levels, for 4 months, with initial doses of 30 g ha^?1. Further research must be conducted in order to evaluate the prospect of outdoor application of mating disruption systems. Copyright © 2011 Society of Chemical Industry  相似文献   

蜚蠊的习性与防治     

袁荣兰 《浙江林学院学报》1989,(3)

蜚蠊,又称蟑螂,全世界已知约有4000种,主要分布于热带。我国最常见的室内有害种类主要有5种。这类昆虫多生活在房屋尤其是厨房里。它们是典型的夜出性昆虫,食性很杂。本亚目昆虫是一个经济重要性极大的目,若虫和成虫均能传播痢疾、伤寒、霍乱、肝炎等病毒和多种寄生虫卵。据卫生防疫部门研究证明,它们还能携带10余种黄曲霉菌,可以引起多种癌症。作为病原物的传播者,蜚蠊污染了人们的食物。对蜚蠊的防治,目前主要用硼酸诱杀及用多种杀虫剂触杀和诱杀。蜚蠊的保幼激素,集合信息素及性信息素,近年来研究得较多。  相似文献   

三种蜚蠊聚集信息素的初步研究     

程惊秋  刘启光 《西南大学学报(自然科学版)》1988,(3)

德国小蠊Blatteia germanica(L.)、美洲大蠊Periplaneta ameri-cana(L.)和黑胸大蠊P.fulginosa(Serville)对各自粪便的提取物表现聚集行为。美洲大蠊对异种的提取物无聚集反应;黑胸大蠊初孵若虫对德国小蠊的提取物呈中度聚集;德国小蠊初孵若虫对美洲大蠊和黑胸犬蠊的提取物均表现明显的聚集行为。作者对上述现象的可能原因进行了讨论。  相似文献   

利用性诱剂防治花生田暗黑鳃金龟的研究   总被引：2，自引：0，他引：2  

李晓  鞠倩  姜晓静  赵志强  陈全森  曲明静  蒋相国  吕敬军  倪皖莉  谷建中  陈志德  刘立峰  康树立 《植物保护》2012,38(3):176-179

为明确暗黑鳃金龟(Holotrichia parallela Motschulsky)性诱剂对成虫的引诱效果及对幼虫虫口密度的降低作用,在全国主要花生产区开展了田间诱捕试验,调查诱捕成虫数、幼虫减退率及对花生的保果效果。结果表明:一台诱捕器一天内诱到的最大成虫数为977头;幼虫减退率最高可达78.8%,保果效果最高可达68.6%。表明暗黑鳃金龟性诱剂对成虫有很强的引诱效果,并能明显减轻幼虫为害。  相似文献   

美国白蛾性信息素应用及粗提取试验     

刘生刚  王悦 《北京农业》2012,(18):6

通过对美国白蛾成虫羽化和交尾高峰期雌虫性信息素分泌规律的研究,得出一些结论.  相似文献   

柑桔黑刺粉虱信息素防治效果研究     

陈丽萍  张艺华 《北京农业》2012,(36)

利用昆虫信息素来防治害虫是近年来发展起来的一种新技术。利用黄色诱虫板和信息素诱芯结合诱捕柑桔黑刺粉虱,其中诱芯载体包括泡罩、橡皮头、圆纸片三种类型,试验结果表明:黄色诱虫板和载体为橡皮头的诱芯诱捕效果最佳。  相似文献   

Aerosol delivery of trail pheromone disrupts the foraging of the red imported fire ant,Solenopsis invicta     

David Maxwell Suckling  Lloyd D Stringer  Joshua E Corn  Barry Bunn  Ashraf M El‐Sayed  Robert K Vander Meer 《Pest management science》2012,68(12):1572-1578

BACKGROUND: The fire ant, Solenopsis invicta, is one of the most aggressive and invasive species in the world. The trail pheromone Z,E‐α‐farnesene (91% purity) was prepared, and disruption of worker trail orientation was tested using an ethanol‐based aerosol formulation presenting a single puff of this compound by airbrush and compressed air. Trail‐following behaviour was recorded by overhead webcam and ants digitised before and after presentation of the aerosol treatment at four rates (1.6, 16, 160 and 1600 ng cm^?2). RESULTS: Ants preferred 110 ng cm^?1 over 11, 1.1 and 0.11 ng cm^?1 for trail following. Within seconds of presentation of 1600 ng cm^?2, the highest dose tested, trail disruption was observed. Disruption was evident as reduced arrival success and reduction in the trail integrity statistic (r²), as well as increased deviation from the trail (deg). The distribution of walking track angles was also flattened. CONCLUSIONS: The feasibility of using aerosol for delivery of trail pheromone was demonstrated, but the need for high purity combined with the difficulty of commercial supply makes this technique impractical. However, the commercial production of Z,E‐α‐farnesene of high purity by industrial biotechnology or from (E)‐nerolidol may be possible in future, which would facilitate further development of trail pheromone disruption of S. invicta. Copyright © 2012 Society of Chemical Industry  相似文献   

性信息素与赤眼蜂对甘蔗条螟的协同控制   总被引：1，自引：0，他引：1  

许汉亮  林明江  管楚雄  邹以文  谢小明  李继虎 《广东农业科学》2012,39(9):72-74,79

为探索昆虫性信息素与寄生天敌对甘蔗螟虫的协同控制作用,利用螟虫性信息素监测甘蔗条螟的发生动态,利用螟虫性信息素干扰法、赤眼蜂、性信息素与赤眼蜂相结合的方法对甘蔗条螟进行防控,比较了螟害株、枯梢株和螟害节的防控效果。结果表明:性信息素干扰和赤眼蜂相结合对甘蔗条螟的综合防控效果最好,明显优于单独使用性信息素干扰或单独使用赤眼蜂寄生的防控效果,螟害株、枯梢株、螟害节与常规防控比较相对防效分别为31.70%、48.55%和40.93%。各处理区的捕食性天敌数量和螟卵寄生也显著高于常规防控区。  相似文献   

应用性诱剂防治甘蔗螟虫     

潘雪红  黄诚华 《中国甜菜》2012,(1):63-66

对甘蔗螟虫的为害特点和防治现状以及性诱剂的特点和应用现状进行了概述。为了有效防治甘蔗螟虫,利用性诱剂进行预测预报,指导适时防治具有重要意义。  相似文献