Rapid responses to a strong experimental selection for heat hardening in the invasive whitefly Bemisia tabaci MEAM 1

2016 ◽  
Vol 160 (2) ◽  
pp. 147-155 ◽  
Author(s):  
Vanessa Muñoz-Valencia ◽  
Ranulfo González-Obando ◽  
Fernando Díaz
Insects ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 996
Author(s):  
Muhammad Zaryab Khalid ◽  
Sohail Ahmed ◽  
Ibrahim Al-ashkar ◽  
Ayman EL Sabagh ◽  
Liyun Liu ◽  
...  

Cotton is a major crop of Pakistan, and Bemisia tabaci (Homoptera: Aleyrodidae) is a major pest of cotton. Due to the unwise and indiscriminate use of insecticides, resistance develops more readily in the whitefly. The present study was conducted to evaluate the resistance development in the whitefly against the different insecticides that are still in use. For this purpose, the whitefly population was selected with five concentrations of each insecticide, for five generations. At G1, compared with the laboratory susceptible population, a very low level of resistance was observed against bifenthrin, cypermethrin, acetamiprid, imidacloprid, thiamethoxam, nitenpyram, chlorfenapyr, and buprofezin with a resistance ratio of 3-fold, 2-fold, 1-fold, 4-fold, 3-fold, 3-fold, 3-fold, and 3-fold, respectively. However, the selection for five generations increased the resistance to a very high level against buprofezin (127-fold), and to a high level against imidacloprid (86-fold) compared with the laboratory susceptible population. While, a moderate level of resistance was observed against cypermethrin (34-fold), thiamethoxam (34-fold), nitenpyram (30-fold), chlorfenapyr (29-fold), and acetamiprid (21-fold). On the other hand, the resistance was low against bifenthrin (18-fold) after selection for five generations. A very low level of resistance against the field population of B. tabaci, at G1, showed that these insecticides are still effective, and thus can be used under the field conditions for the management of B. tabaci. However, the proper rotation of insecticides among different groups can help to reduce the development of resistance against insecticides.


2013 ◽  
Vol 21 (3) ◽  
pp. 363-372 ◽  
Author(s):  
Ju Kim ◽  
Young-Rip Kwon ◽  
Ju-Hee Kim ◽  
Seong-Soo Cheong ◽  
Ju-Rak Im ◽  
...  

Insects ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 35
Author(s):  
Xiao-Tian Tang ◽  
Li Cai ◽  
Yuan Shen ◽  
Li-Li Xu ◽  
Yu-Zhou Du

Despite the severe ecological damage and economic loss caused by invasive species, the factors contributing to successful invasion or displacement remain elusive. The whitefly, Bemisia tabaci (Gennadius), is an important invasive agricultural pest worldwide, causing severe damage to numerous crops by feeding or transmitting plant viruses. In this study, we monitored the dynamics of two invasive whitefly cryptic species, Middle East-Asia Minor 1 (MEAM1) and Mediterranean (MED), in Jiangsu, China, from 2005–2016. We found that B. tabaci MED quickly established and asserted dominance over MEAM1, resulting in their population displacement in Jiangsu in only three years (from 2005 to 2008). We further investigated the possible mechanisms underlying the successful invasion and competitive displacement from a genetic perspective. Based on sequencing of mitochondrial gene sequences from large numbers of whitefly samples, multiple invasion events of MED were validated by our genetic analyses. MED invaded Jiangsu starting from multiple introduction sites with secondary and/or subsequent invasive events. This may favor their invasion and displacement of MEAM1. This study advances our understanding of the mechanisms that enabled the successful invasion of MED.


2013 ◽  
Vol 8 (7) ◽  
pp. 782-791
Author(s):  
Xu Senfu ◽  
Wang Huifu ◽  
Chen Weiqiang ◽  
Wang Enguo ◽  
Hu Yang ◽  
...  

2013 ◽  
Vol 5 (11) ◽  
pp. 1514-1520 ◽  
Author(s):  
Xu Senfu ◽  
Wang Huifu ◽  
Chen Weiqiang ◽  
Wang Enguo ◽  
Hu Yang ◽  
...  

2021 ◽  
Author(s):  
Kun Yang ◽  
Meng‐Ying Yuan ◽  
Ying Liu ◽  
Chen‐Liang Guo ◽  
Tong‐Xian Liu ◽  
...  

PLoS ONE ◽  
2013 ◽  
Vol 8 (1) ◽  
pp. e53006 ◽  
Author(s):  
Rumei Li ◽  
Wen Xie ◽  
Shaoli Wang ◽  
Qingjun Wu ◽  
Nina Yang ◽  
...  

PLoS ONE ◽  
2014 ◽  
Vol 9 (6) ◽  
pp. e100423 ◽  
Author(s):  
Yi-Wei Fang ◽  
Ling-Yun Liu ◽  
Hua-Li Zhang ◽  
De-Feng Jiang ◽  
Dong Chu

EDIS ◽  
2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Muhammad Ahmed ◽  
Lance Osborne ◽  
Vivek Kumar ◽  
Cindy McKenzie ◽  
Cristi Palmer

Bemisia tabaci (Gennadius), commonly known as silverleaf whitefly, is a polyphagous pest and listed as one of the world’s 100 worst invasive species. It is known to feed on more than 1000 plant species and vector over 120 plant-damaging viruses. This publication provides a management program for nursery and ornamental plant growers to aid in their efforts to minimize selection for insecticide resistance irrespective of whitefly biotype while helping to achieve top-quality plant materials.


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