نتایج جستجو برای: سفیدبالک پنبه bemisia tabaci

تعداد نتایج: 4196  

2016
Yingying Wang Da Xiao Ran Wang Fei Li Fan Zhang Su Wang

The whitefly Bemisia tabaci is a genetically diverse complex with multiple cryptic species, and some are the most destructive invasive pests of many ornamentals and crops worldwide. Encarsia sophia is an autoparasitoid wasp that demonstrated high efficiency as bio-control agent of whiteflies. However, the immune mechanism of B. tabaci parasitization by E. sophia is unknown. In order to investig...

Journal: :Journal of economic entomology 2014
Andrew J Frewin Cynthia Scott-Dupree Graeme Murphy Robert Hanner

Bemisia tabaci (Gennadius) is an economically important pest of agricultural and ornamental plants worldwide and is now widely recognized as a cryptic species complex. In North America, B. tabaci is a particularly important pest of greenhouse poinsettia. In poinsettia production, two cryptic species from the B. tabaci complex, Mediterranean and Middle East Minor 1, often infest crops simultaneo...

2017
G. E. Valle

The silverleaf whitefly (Bemisia tabaci) is actually a complex of morphologically indistinct species that vary in their capacity to transmit plant viruses and to induce physiological disorders in plants of economic importance. The worldwide impact of this whitefly has increased greatly, as it is a vector of various types of phytovirus, especially geminiviruses, in plants of economic importance....

Journal: :Cropsaver 2022

Bemisia tabaci is an important pest on red chili plants. The entomopathogenic nematodes Steinernema spp. has the potential to control insect populations. purpose of this study was obtain concentration most effective in controlling B. experiment conducted at Greenhouse, Faculty Agriculture, Universitas Padjadjaran, Jatinangor, from January September 2020. used experimental methods in-vitro and i...

2013
Dong Chu Hui-Peng Pan Xian-Chun Li Dong Guo Yun-Li Tao Bai-Ming Liu You-Jun Zhang

BACKGROUND Even though introductions of exotic species provide ready-made experiments of rapid evolution, few studies have examined the genetic structure of an exotic species shortly after its initial introduction and subsequent spread. To determine the genetic structure of its populations during the initial introduction, we investigated the invasive sweet potato whitefly (Bemisia tabaci Q, com...

Journal: :Bulletin of entomological research 2002
S J Castle N C Toscano N Prabhaker T J Henneberry J C Palumbo

Various insecticide use strategies including rotations, sequential use, and mixtures were evaluated experimentally on Bemisia tabaci (Gennadius) in California and Arizona (U.S.A.) cotton fields. Toxicological responses of adult B. tabaci were measured along with preimaginal densities and cotton yields from plots subjected to different insecticide regimens. Weekly monitoring for susceptibility c...

2016
Peiqiong Shi Zhan He Shaojian Li Xuan An Ning Lv Murad Ghanim Andrew G S Cuthbertson Shun-Xiang Ren Bao-Li Qiu

The whitefly Bemisia tabaci is a cosmopolitan insect species complex that harbors the obligate primary symbiont Portiera aleyrodidarum and several facultative secondary symbionts including Wolbachia, which have diverse influences on the host biology. Here, for the first time, we revealed two different localization patterns of Wolbachia present in the immature and adult stages of B. tabaci AsiaI...

2014
Dong Chu Dong Guo Yunli Tao Defeng Jiang Jie Li Youjun Zhang

The sweetpotato whitefly Bemisia tabaci Q species is a recent invader and important pest of agricultural crops in China. This research tested the hypothesis that the Q populations that establish in agricultural fields in northern China each year are derived from multiple secondary introductions and/or local populations that overwinter in greenhouses (the pest cannot survive winters in the field...

2014
Wen Xie Litao Guo Xiaoguo Jiao Nina Yang Xin Yang Qingjun Wu Shaoli Wang Xuguo Zhou Youjun Zhang

Sex difference involving chromosomes and gene expression has been extensively documented. In this study, the gender difference in the sweetpotato whitefly Bemisia tabaci was investigated using Illumina-based transcriptomic analysis. Gender-based RNAseq data produced 27 Gb reads, and subsequent de novo assembly generated 93,948 transcripts with a N50 of 1,853 bp. A total of 1,351 differentially ...

2003
Francisco J. Morales

The whitefly Bemisia tabaci Genn. is a pervasive pest and vector of plant viruses. The existence of B. tabaci biotypes and numerous whitefly-transmitted geminiviruses (begomoviruses) affecting food and industrial crops, has become a major constraint to agricultural development in tropical and subtropical regions of the world. The predominant whitefly and begomovirus method of control has been t...

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