拟垫跗螋生物学特性的研究     

王宗典  帅先福  龚秧初  王大智  王浩毅  周文豹 《中国生物防治》1994,(2)

拟垫跗螋是为害造纸原料荻和芦的害虫（蚜虫、蓟马、螨等）的重要捕食性天敌。在湖南洞庭湖区一年发生２代，以成虫和若虫在残杆、渣叶和土缝中越冬。成虫寿命第１代约４个月，第２代连越冬达１０个月。雌雄性比约５４。雌雄均可多次交尾，有的雌虫产卵后又可交尾。每头雌虫的产卵量平均３９．３粒。卵期平均６．５天。若虫期第１代近４个月，第２代连越冬约９个月。大田消长主要受地势高低、洪水、农药、食物等因素影响。并对保护利用跗螋控制害虫的措施进行了讨论  相似文献   

Mechanisms conferring resistance of Western flower thrips to bendiocarb     

Guangyu Zhao  Wei Liu  Charles O. Knowles 《Pest management science》1995,44(3):293-297

Mechanisms associated with bendiocarb resistance were examined in two strains of western flower thrips, Frankliniella occidentalis (Pergande), that differed in their susceptibility to this carbamate by 13.6-fold. No appreciable differences between the two strains in [¹⁴C] bendiocarb penetration and excretion were detected; however, bendiocarb was metabolised substantially faster by the resistant KCM thrips than by the more susceptible UMC thrips. No appreciable difference between the two strains was found in the sensitivity of acetylcholinesterase activity to inhibition by bendiocarb. It was concluded that bendiocarb resistance in KCM western flower thrips was due to enhanced metabolism that probably was mainly oxidative in nature.  相似文献   

Effects of a juvenile hormone analog,pyriproxyfen, on Thrips tabaci (Thysanoptera: Thripidae)     

Liu TX 《Pest management science》2003,59(8):904-912

Effects of a juvenile hormone analog, pyriproxyfen, on various developmental stadia of the onion thrips, Thrips tabaci Lindeman, were determined on cabbage leaves in the laboratory. Pyriproxyfen was applied at 0.064 or 0.128 g AI liter(-1) on leaves (residual contact-ingestion), thrips (direct contact) and leaf-thrips (residue contact-ingestion-direct contact). Pyriproxyfen did not have any significant lethal effects on thrips pupae in any treatment. Lethal effects on thrips larvae varied depending on application method and dosage. In the leaf and the leaf-thrips treatments, few larvae and pre-pupae molted to the next stage, and none developed to adults. In contrast, in the thrips-only treatment, pyriproxyfen did not show any significant lethal effects. The developmental times of larvae and pre-pupae were prolonged when larvae were treated with pyriproxyfen, and those of pre-pupae and pupae were shortened when pre-pupae and pupae were treated. The longevity and survival rates of thrips adults were generally shorter when they contacted and ingested pyriproxyfen-treated leaves than those in water control. Significantly fewer progeny (0.22-1.15 larvae per female) were produced by females that had fed on and been in contact with the pyriproxyfen-treated leaves than by those in the water control (11.94 larvae per female). However, the number of progeny produced by the thrips females increased significantly (3.32-7.28 larvae per female) when the females were transferred to untreated leaves after feeding on treated leaves for 5 days; the daily larval hatching pattern was similar to those in water control, indicating that female adults were able to produce viable eggs when untreated food was offered.  相似文献   

Note: First record in crete ofHercinothrips femoralis in greenhouse banana plantations     

E. Roditakis  L. A. Mound  N. E. Roditakis 《Phytoparasitica》2006,34(5):488-490

In 2004 the banded greenhouse thrips,Hercinothrips femoralis (Reuter) (Thysanoptera: Thripidae), was recorded for the first time in greenhouse-grown organic banana in the area of Sitia (northeastern Crete). Banana fruits were severely damaged by the thrips infestation and a typical smoky-red discoloration of the fruit was observed. Pest control was poor using either high-pressure washing with potassium fatty acids, or commercially available thrips predatorsNeoseiulus cucumeris (Oudemans) (Acari: Phytoseiidae) andOrius laevigatus (Fieber) (Hemiptera: Anthocoridae). During 2005H. femoralis was also found causing severe damage in conventional banana plantations in Arvi, the main banana-growing area of Crete. http://www.phytoparasitica.org posting Sept. 17, 2006.  相似文献   

中国园林蓟马天敌的初步研究     

段半锁  李明照  王晓燕  杨蕊枝 《中国森林病虫》2001,(Z1)

对全国 2 5个省 (市、区 )的 2 8个大中城市园林蓟马天敌种类进行了初步调查研究 ,鉴定出我国园林蓟马天敌 90种 ,列表说明了天敌分布及捕食和寄生对象。  相似文献   

Initial screening of chili and sweet pepper germplasm for resistance to chili thrips, Scirtothrips dorsalis Hood     

N. K. Krishna Kumar  M. Aradya  A. A. Deshpande  N. Anand  P. R. Ramachandar 《Euphytica》1996,89(3):319-324

Summary A preliminary evaluation for resistance to chili thrips, Scirtothrips dorsalis Hood of 41 and 194 pepper (Capsicum annuum L.) germplasms during 1987 and 1988, respectively, indicated chili accessions may be a promising source of resistance. In contrast, all sweet pepper accessions tested were highly susceptible. A number of chili accessions produced a moderate yield, in spite of a high thrips infestation indicating tolerance to S. dorsalis. Rating for thrips damage was more reliable and efficient than estimating thrips numbers in screening pepper accessions for resistance to thrips. Highly significant, positive correlation between ratings at the seedling stage and final rating for thrips damage indicated the feasibility of screening pepper accessions at the seedling stage. Comparing the similarities in rating among accessions resulted in 40 distinct groups. The variance-covariance matrix of the data from these 40 groups was subjected to principal component analysis. This accounted for 56 and 18 per cent of the variation across the two principal axes, respectively. Projection of chili and sweet pepper accessions along these two axes revealed three distinct clusters. About 80 per cent of chili accessions formed the first cluster, 58 per cent of the sweet pepper accessions formed the second cluster and a third cluster exhibited intermediate ratings for thrips damage. The significance of these findings in relation to geographical divergence and resistance to thrips among pepper accessions is discussed.  相似文献   

防控有害入侵生物——西花蓟马   总被引：6，自引：0，他引：6  

乔凤霞  肖春  刘忠善  丁元明  胡纯华 《山东农业科学》2006,(4):46-48,51

西花蓟马(Frankliniella occidentalis)是一种世界著名的危险性害虫,我国大陆于2003年首次报道。西花蓟马的发生给农作物造成严重危害和经济损失。本文就西花蓟马的寄主与危害及其防控等方面进行了概述。  相似文献   

荆州城区蓟马分类的初步研究     

张建民  张长青  蔡立君 《湖北农学院学报》2004,24(4):258-260

2002-2003年对荆州城区的蓟马种类进行了调查，鉴定出锯尾亚目Terebrantia 1科4属14种，管尾亚目Tubulifera 1科3属4种。同时编制了科、属及种检索表。  相似文献   

西花蓟马(Frankliniella occidentalis)研究进展^*   总被引：5，自引：0，他引：5  

武晓云  程晓非  张宏瑞  李正跃 《云南农业大学学报(自然科学版)》2006,21(2):178-183

 西花蓟马(Frankliniella occidentalis)属于缨翅目(Thysanoptera)昆虫,最初分布于美国西部,20世纪80年代开始迅速扩散至全球各大洲,目前已在69个国家和地区有报道,成为世界性害虫。F. occidentalis可以以持久性的方式传播番茄斑萎病毒属(Tospovirus)病毒,如番茄斑萎病毒(tomato spotted wilt virus, TSWV);并且,F. occidentalis传播的病毒所造成的经济损失远远大于其本身所造成的损失。因此控制F. occidentalis的种群以及它的扩散是控制Tospoviruses的关键所在,有鉴于此,各国对F. occidentalis进行了深入的研究。主要论述了近年来F. occidentalis在生物学特征、室内饲养以及它和TSWV的互作关系等方面的进展。  相似文献   

枸杞蓟马发生与气温相关性的初步研究   总被引：1，自引：0，他引：1  

李锋  马建国  刘晓丽  孙海霞  余建平 《北方园艺》2011,(9):173-174

初步研究了枸杞蓟马种群发生与气温的相关性。结果表明:枸杞蓟马的发生情况与气温呈明显相关。气温升高时枸杞蓟马种群数量增长,气温降低时,蓟马种群数量也随之下降。  相似文献