共查询到20条相似文献，搜索用时 78 毫秒
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柑橘红蜘蛛和柑橘锈壁虱是广东省柑橘的主要害螨,一年四季均可发生为害。由于害螨世代多,为害期长,用来防治害螨的杀螨剂的使用量约占柑橘病虫防治农药成本的６０％～７０％。如何合理使用杀螨剂,是关系到经济、安全、有效地控制柑橘螨害,确保柑橘优质高产的重要问题... 相似文献
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柑橘锈壁虱(Phyllocoptes oleivorus Ash.)是柑橘生产上常见的害螨,给柑橘生产带来较大的危害。本文对柑橘锈壁虱为害情况、发生因素做了分析,在此基础上提出了防控对策,以期为柑橘锈壁虱的防控提供参考。 相似文献
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江原钝绥螨Amblyseius eharai Amitai et Swirski广泛分布于我国各地的柑橘产区,是我国柑橘园的捕食螨优势种之一.由于滥用化学农药,大量叶螨天敌受到危害,叶螨的抗药性却逐年增强.利用天敌生物防治叶螨成为近年来柑橘害螨绿色防控的重要措施.本文主要研究了江原钝绥螨对柑橘全爪螨Panonychus... 相似文献
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2018—2022年3月下旬至10月中旬,在四川雅安市名山区3个茶树主栽品种名山特早213、福鼎大白茶和名山白毫131的茶园内,采用棋盘式取样法分别采取茶蓬不同部位叶片,镜检并计录害螨种类及数量,每7天调查1次。调查结果表明,当地茶园主要害螨为茶橙瘿螨、茶跗线螨和柑橘始叶螨;茶橙瘿螨和茶跗线螨主要分布于芽下2、3叶,柑橘始叶螨主要分布于成熟新叶和中下部老叶。茶橙瘿螨和柑橘始叶螨主要发生于4—6月,茶跗线螨可发生于5—7月和9月,同一茶园内,茶跗线螨发生晚于茶橙瘿螨和柑橘始叶螨。因此,4—7月和9月为茶园主要害螨发生高峰期,应加强监测预警和防控。 相似文献
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V Cerny 《Folia parasitologica》1975,22(3):233-240
Seven new species of feather mites belonging to families Analgidae, Falculiferidae, Pterolichidae, Pteronyssidae and Xolalgidae are described from Columbiformes, Cuculiformes, Piciformes and Passeriformes of Surinam. 相似文献
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The penetration and degradation of six pyrethroids were examined in the twospotted spider mite, Tetranychus urticae Koch, and the results were related to their toxicity as measured by inhibition of respiration using the Warburg technique and mortality using the slide-dip bioassay. FMC-54800 [1,1′-biphenyl-3ylmethyl cis-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylate] was the most toxic pyrethroid to the mites based on both respiration and mortality studies. It and flucythrinate had the highest pharmacokinetic efficiency as determined by delivery and maintenance of internal levels of parent compounds. Permethrin, fenvalerate, and fluvalinate were intermediate in pharmacokinetic efficiency, whereas cypermethrin was significantly lower. The highest intrinsic activity, as estimated by the percentage inhibition of respiration per microgram of internal parent, was possessed by cypermethrin and FMC-54800. Fenvalerate and fluvalinate had intermediate levels, while permethrin and flucythrinate had significantly lower capacities to inhibit respiration. The combination of relatively high pharmacokinetic efficiency and intrinsic activity of FMC-54800 appeared to be responsible for its high toxicity. In addition to these findings, differences in the kinetics for cis and trans isomers were observed for permethrin but not cypermethrin. This study has yielded evidence that acaricidal activity of pyrethroids can be enhanced by optimizing the structure for increased pharmacokinetic efficiency and increased intrinsic activity. 相似文献
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2006年,经2次本底资源调查共得到广州市植绥螨科5属28种,其中尼氏真绥螨是优势种,占采集标本总数的45%。本文还对一些在生物防治上有利用价值的种类作了重点介绍。 相似文献
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12种橘园常用农药对3种捕食螨的毒力 总被引：2，自引：0，他引：2
采用玻片浸渍法测定了12种药剂对3种捕食螨的毒力.结果表明,在5种杀螨剂中,炔螨特的毒力最低,阿维·哒螨灵的毒力最高;在5种杀虫剂中,噻嗪酮的毒力最低,高效氯氰菊酯的毒力最高;在2种杀菌剂中,代森锰锌的毒力低于咪鲜胺.但同种药剂对不同捕食螨的毒力不同,3种捕食螨对炔螨特的敏感性依次为胡瓜钝绥螨[Amblyseius(Neoseiulus) cucumeris]＜巴氏钝绥螨[Amblyseius(N.) barkeri]＜尼氏真绥螨(Euseius nicholsi),而对阿维·哒螨灵则为尼氏真绥螨＜胡瓜钝绥螨＜巴氏钝绥螨. 相似文献
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Following the appearance of inflorescence malformations on mango trees in some orchards in Israel, a survey was carried out
of the presence of Eriophyid mites on mango, and their possible effect on inflorescence malformation was studied. Two Eriophyid
species were recorded for the first time from this area. One of them,Erio-phyes mangiferae, associated with mango trees, has no direct effect on inflorescence malformation, but its interaction with another biotic
factor is not excluded. 相似文献
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J. Meltzer 《European journal of plant pathology / European Foundation for Plant Pathology》1972,78(3):77-88
The antibiotic MYC 8005, known as an acaricide, appeared to possess strong growth inhibiting properties, not only in immature stages of spider mites but also in larvae of several insect species. Adult mites and insects seemed not to be affected. However, the fecundity of femaleTetranychus cinnabarinus was strongly reduced by deposits of MYC 8005 on the leaves of bean plants. The feeding of adult houseflies and Colorado potato beetles with MYC 8005 resulted in complete or almost complete sterilization of the insects. The sterilizing effect appeared to be caused by inhibition of maturing processes, in particular of yolk formation in the eggs, whereas follicles looked normal. These facts, and the strong reduction of the fat body in treated insects, suggest that the lipid and protein metabolism are disturbed by MYC 8005. 相似文献