Field evaluations of insecticide treatment regimens for control of the common bed bug,Cimex lectularius (L.)     

David J Moore  Dini M Miller 《Pest management science》2009,65(3):332-338

BACKGROUND: Because bedbugs, Cimex lectularius L., have not been a problem in the USA for over 40 years, few insecticide products are labeled for their control. Most products that are labeled for bedbugs are pyrethroids. However, recent studies indicate that field‐collected bedbugs may be resistant to pyrethroids. There are also non‐pyrethroid products labeled for bedbugs, but, like the pyrethroids, none of these products has been evaluated for field efficacy. This study evaluated the efficacy of two insecticide treatment regimens for bedbugs in multi‐unit housing. Both of the treatments included multiple products currently being used by the pest management industry. RESULTS: The ‘traditional’ treatment consisted of applications of pyrethroid products and an insect growth regulator. The ‘novel’ treatment consisted of applications of non‐pyrethroid products. The traditional treatment significantly reduced the number of bedbugs from 39.8 ± 10.1 per unit prior to treatment to 2.2 ± 1.0 at the end of the test period (P = 0.02; 95% reduction). The number of live bedbugs in the ‘novel’ treatment was also significantly reduced from 71.4 ± 25.3 bedbugs per unit to 10.2 ± 4.4 after 8 weeks (86% population reduction). CONCLUSIONS: Although both treatment regimens reduced bedbug numbers, the fact that bedbugs were not eliminated after multiple applications suggests that the insecticides, applied at the current label rates, were inadequate. These results suggest that a more integrated approach to bedbug control is necessary in multi‐unit housing situations. Copyright © 2008 Society of Chemical Industry  相似文献   

虫螨腈原药高效液相色谱分析方法研究   总被引：1，自引：0，他引：1  

石隆平  薄瑞  王胜翔  王旭 《农药科学与管理》2011,32(3):37-39

本文采用液相色谱法,以甲醇和水为流动相,使用ZORBAX 80A Extend-C18 5μm填料的不锈钢柱和二极管阵列检测器,在254nm波长下对虫螨腈原药进行分离和定量分析。结果表明虫螨腈的线性相关系数为1.000 0;标准偏差为0.35;变异系数为0.37%;平均回收率为100.09%。  相似文献   

10％虫螨腈SC防治柑桔木虱、潜叶蛾等四种柑桔害虫田间药效试验     

邓明学  覃旭  谭有龙  翟高云  甘光耀  蒋建军  蓝冰团  韦巍 《广西园艺》2011,(6):6-9

对10％虫螨腈SC进行防治柑桔木虱、潜叶蛾等四种柑桔害虫田间药效试验。结果表明,10％虫螨腈SC对柑桔木虱、潜叶蛾防效好;对柑桔粉虱速效性较好,但持效性差;对柑桔红蜘蛛的防效一般,特别是速效性差。  相似文献   

虫螨腈毛细管柱气相色谱法分析   总被引：3，自引：0，他引：3  

毕富春  吴国旭 《农药科学与管理》2003,24(9):7-8

研究了用SE-30大口径毛细管柱定量分析虫螨腈的分析方法。使用的色谱仪HP5890A,FID检测器。色谱条件如下:10m×0.53mm×2.0μm膜厚的SE-30的熔融硅胶毛细管柱,邻苯二甲酸二环己酯作内标物。本方法在1~16μg进样范围内呈线性。相关系数值(R)为0.9993。测得的回收率为98%~101%,变异系数为1.0%左右。  相似文献   

虫螨腈的高效液相色谱分析方法   总被引：3，自引：0，他引：3  

刘育清 《农药科学与管理》2002,23(4):14-15

用高效液相色谱法分析10％除尽悬浮剂中虫螨腈的含量，所用色谱柱为μbonda-pak，C18柱，流动相为甲醇＋水＝90＋10，检测波长261nm。该方法变异系数为0．29％。回收率在99．63％^～－100．25％之间，线性相关系数为r=0.9999。  相似文献   

Resistance of Pakistani field populations of spotted bollworm Earias vittella (Lepidoptera: Noctuidae) to pyrethroid,organophosphorus and new chemical insecticides     

Mushtaq Ahmad  M Iqbal Arif 《Pest management science》2009,65(4):433-439

BACKGROUND: The spotted bollworm Earias vittella (Fab.) is a serious pest of cotton and okra in Pakistan. Owing to persistent use of insecticides, this pest has developed resistance, especially to pyrethroids. The present studies aimed at determining the extent of resistance to pyrethroid, organophosphorus and new chemical insecticides in Pakistani populations of E. vittella. RESULTS: Field populations of E. vittella were monitored at Multan, Pakistan, from 1999 to 2007 for their resistance against six pyrethroid, four organophosphorus and six new chemical insecticides using a leaf‐dip bioassay. Of the pyrethroids, resistance was generally low to zeta‐cypermethrin and moderate to high or very high to cypermethrin, deltamethrin, esfenvalerate, bifenthrin and lambda‐cyhalothrin. Resistance to organophosphates chlorpyrifos, profenofos, triazophos and phoxim was recorded at very low to low levels. Among new chemicals, E. vittella had no or a very low resistance to spinosad, emamectin benzoate and methoxyfenozide, a very low to low resistance to abamectin, a very low to moderate resistance to indoxacarb and a moderate resistance to chlorfenapyr. CONCLUSION: The results indicate a lack of cross‐resistance between pyrethroid and organophosphorus insecticides in E. vittella. Rotation of insecticides showing no, very low or low resistance, but belonging to different insecticide classes with unrelated modes of action, may prevent or mitigate insecticide resistance in E. vittella. Copyright © 2009 Society of Chemical Industry  相似文献   

溴虫腈在稻田环境中的消解动态研究     

刘斐  郭正元  刘慧琳  石卿 《湖南农业科学》2012,(7):71-73

通过田间试验,采用气相色谱法分析研究了溴虫腈在湖南和浙江两地稻田土壤、稻田水和水稻植株中的消解动态。结果表明:溴虫腈在水稻土壤、稻田水和水稻植株中的平均添加回收率分别为90.0%~108.0%、96.2%~105.0%和87.9%~105.0%;溴虫腈在稻田环境中的消解动态符合一级动力学指数模型,在两试验地稻田土壤中的平均半衰期为11.17 d;稻田水中的平均半衰期为5.17 d;水稻植株中的平均半衰期为6.27 d。  相似文献   

溴虫腈·丁醚脲34%悬浮剂高效液相色谱分析     

何伟娟  任晓静  焦月朋  李宁 《农药科学与管理》2012,33(9):37-39

本文采用高效液相色谱法,以甲醇＋水溶液为流动相,使用WondaSil C18 5μm为填料的不锈钢柱和紫外波长检测器,检测波长245nm,对溴虫腈.丁醚脲34%悬浮剂进行的定量分析。结果表明,方法的标准偏差分别为0.08、0.12,变异系数为0.78%、0.47%,平均回收率为99.48%、99.67%,线性相关系数为0.999、0.999。  相似文献   

10%溴虫腈水乳剂配方研究   总被引：2，自引：1，他引：2       下载免费PDF全文

谭玉荣  庞民好  张金林  赤国彤 《农药学学报》2007,9(4):423-426

采用相转移法,通过对溶剂及表面活性剂的筛选和配伍,确定了10%溴虫腈水乳剂的最优配方:溴虫腈质量分数为10％;溶剂甲苯质量分数为22.8％;表面活性剂EL-40、Span-80和农乳500#以质量比16∶ 3∶ 1复配,总质量分数为10%;蒸馏水质量分数为56.7%。用上述配方所制备的10％溴虫腈水乳剂各项指标合格,并且经常温、热贮(54℃±2℃)80 d未出现析油、分层现象,所制备的制剂黏度小、倾倒性佳,利于分装。  相似文献   

吡咯类农药活性化合物的研究进展   总被引：11，自引：1，他引：11  

徐尚成  蒋木庚 《农药学学报》2002,4(2):1-13

概述了具有农药活性的生物源吡咯类及相关结构的化合物,介绍了由吡咯类抗生素经化学结构改造而研究开发的溴虫腈等农药品种的发现过程、结构活性关系及应用研究概况,并对近10多年来合成吡咯类杀虫活性化合物的研究进展作了综述。  相似文献