نتایج جستجو برای: سفیدبالک پنبه bemisia tabaci

تعداد نتایج: 4196  

Journal: :Bulletin of entomological research 2005
H Delatte B Reynaud M Granier L Thornary J M Lett R Goldbach M Peterschmitt

Following the first detection of tomato yellow leaf curl virus (TYLCV) from Reunion (700 km east of Madagascar) in 1997 and the upsurge of Bemisia tabaci (Gennadius) on vegetable crops, two genetic types of B. tabaci were distinguished using RAPD-PCR and cytochrome oxidase I (COI) gene sequence comparisons. One type was assigned to biotype B and the other was genetically dissimilar to the popul...

2017
Shaohua Lu Jingjing Li Xueli Wang Danyang Song Rune Bai Yan Shi Qinsheng Gu Yen-Wen Kuo Bryce W. Falk Fengming Yan

It is known that plant viruses can change the performance of their vectors. However, there have been no reports on whether or how a semipersistent plant virus manipulates the feeding behaviors of its whitefly vectors. Cucurbit chlorotic yellows virus (CCYV) (genus Crinivirus, family Closteroviridae) is an emergent plant virus in many Asian countries and is transmitted specifically by B and Q bi...

2005
John GOOLSBY Paul DE BARRO Kim HOELMER Alan KIRK

A retrospective evaluation of the biological control program for Bemisia tabaci biotype B in the U.S.A. was conducted. The use of climate matching to direct foreign exploration led to discovery of B. tabaci parasitoids from diverse climates, which proved useful in selecting species which would establish in the varied climates of the impacted agricultural areas of the U.S.A. The parasitoids whic...

2012
Wee Tek Tay Gregory A. Evans Laura M. Boykin Paul J. De Barro

Since Panayiotis Gennadius first identified the whitefly, Aleyrodes tabaci in 1889, there have been numerous revisions of the taxonomy of what has since become one of the world's most damaging insect pests. Most of the taxonomic revisions have been based on synonymising different species under the name Bemisia tabaci. It is now considered that there is sufficient biological, behavioural and mol...

2014
Muhammad Ashfaq Paul D. N. Hebert M. Sajjad Mirza Arif M. Khan Shahid Mansoor Ghulam S. Shah Yusuf Zafar

BACKGROUND Although whiteflies (Bemisia tabaci complex) are an important pest of cotton in Pakistan, its taxonomic diversity is poorly understood. As DNA barcoding is an effective tool for resolving species complexes and analyzing species distributions, we used this approach to analyze genetic diversity in the B. tabaci complex and map the distribution of B. tabaci lineages in cotton growing ar...

2017
Wen Xie Chunhai Chen Zezhong Yang Litao Guo Xin Yang Dan Wang Ming Chen Jinqun Huang Yanan Wen Yang Zeng Yating Liu Jixing Xia Lixia Tian Hongying Cui Qingjun Wu Shaoli Wang Baoyun Xu Xianchun Li Xinqiu Tan Murad Ghanim Baoli Qiu Huipeng Pan Dong Chu Helene Delatte M. N. Maruthi Feng Ge Xueping Zhou Xiaowei Wang Fanghao Wan Yuzhou Du Chen Luo Fengming Yan Evan L. Preisser Xiaoguo Jiao Brad S. Coates Jinyang Zhao Qiang Gao Jinquan Xia Ye Yin Yong Liu Judith K. Brown Xuguo “Joe” Zhou Youjun Zhang

The sweetpotato whitefly Bemisia tabaci is a highly destructive agricultural and ornamental crop pest. It damages host plants through both phloem feeding and vectoring plant pathogens. Introductions of B. tabaci are difficult to quarantine and eradicate because of its high reproductive rates, broad host plant range, and insecticide resistance. A total of 791 Gb of raw DNA sequence from whole ge...

Journal: :Annual Report of The Kansai Plant Protection Society 2009

2015
Haipeng Zhao Xiaoying Zhang Ming Xue Xiao Zhang Xiao-Wei Wang

BACKGROUND The feeding of Bemisia tabaci nymphs trigger the SA pathway in some plant species. A previous study showed that B. tabaci nymphs induced defense against aphids (Myzus persicae) in tobacco. However, the mechanism underlying this defense response is not well understood. METHODOLOGY/PRINCIPAL FINDINGS Here, the effect of activating the SA signaling pathway in tobacco plants through B....

2014
Qi Su Wen Xie Shaoli Wang Qingjun Wu Baiming Liu Yong Fang Baoyun Xu Youjun Zhang

The whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) harbors several bacterial symbionts. Among the secondary (facultative) symbionts, Hamiltonella has high prevalence and high infection frequencies, suggesting that it may be important for the biology and ecology of its hosts. Previous reports indicated that Hamiltonella increases whitefly fitness and, based on the complete sequenci...

2017
N. C. Naveen Rahul Chaubey Dinesh Kumar K. B. Rebijith Raman Rajagopal B. Subrahmanyam S. Subramanian

The present study is a summary of the current level of the insecticide resistance to selected organophosphates, pyrethroids, and neonicotinoids in seven Indian field populations of Bemisia tabaci genetic groups Asia-I, Asia-II-1, and Asia-II-7. Susceptibility of these populations was varied with Asia-II-7 being the most susceptible, while Asia-I and Asia-II-1 populations were showing significan...

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