Insecticide Resistance Monitoring of the Diamondback Moth (Lepidoptera: Plutellidae) Populations in China

2021 ◽  
Author(s):  
Jing Wang ◽  
Xiaobin Zheng ◽  
Jiangjiang Yuan ◽  
Shuaiyu Wang ◽  
Baoyun Xu ◽  
...  
Keyword(s):  
Bacillus Thuringiensis ◽  
Insecticide Resistance ◽  
Plutella Xylostella ◽  
Yunnan Province ◽  
Diamondback Moth ◽  
Resistance Management ◽  
Resistance Monitoring ◽  
Crop Pest ◽  
High Level ◽  
Selection Of

Abstract The diamondback moth, Plutella xylostella L., is a worldwide crop pest that is difficult to control because of its ability to develop resistance to many insecticides. To provide a reference for resistance management of P. xylostella in China, the present study used a leaf-dip bioassay to monitor the resistance of P. xylostella to nine insecticides in eight regions of China. The results showed that P. xylostella had developed a high level of resistance to beta-cypermethrin (resistance ratio [RR] > 112), and moderate (RR < 40) to high levels of resistance to indoxacarb, abamectin, and chlorfluazuron. For chlorantraniliprole, RRs > 100 were found in Midu (Yunnan Province) and Jinghai (Tianjin). In most regions, the resistance to spinetoram and chlorfenapyr and Bacillus thuringiensis (Bt) was low. No resistance was detected to diafenthiuron. Overall, P. xylostella resistance to insecticides was higher in Midu than in other regions. The data in this study should help guide the selection of insecticides for management of P. xylostella in China.

scholarly journals Update on diamondback moth (Plutella xylostella) insecticide resistance and the vegetable brassica insecticide management strategy

2012 ◽  
Vol 65 ◽  
pp. 114-119
Author(s):  
G.P. Walker ◽  
S.I. Davis ◽  
F.H. MacDonald ◽  
T.J.B. Herman
Keyword(s):  
Insecticide Resistance ◽  
Plutella Xylostella ◽  
Mode Of Action ◽  
Management Strategy ◽  
Diamondback Moth ◽  
Resistance Management ◽  
Foliar Spray ◽  
Insecticide Resistance Management ◽  
Rotation Strategy ◽  
Vegetable Brassica

The susceptibility of field populations of diamondback moth (DBM) Plutella xylostella to lambdacyhalothrin methamidophos spinosad and indoxacarb collected from the four major brassicagrowing regions has been assessed approximately every 2 years from 1997 to 2008 Recent results indicate that populations from all regions have increased their resistance to lambdacyhalothrin but there is little or no resistance to spinosad and indoxacarb and reduced resistance to methamidophos This mitigation of resistance in DBM is attributed to in particular a decadelong regional adherence by the vegetable industry of rotating spinosad with indoxacarb in a twowindowsperyear rotation strategy The original insecticide resistance management rotation strategy had to be updated to incorporate chlorantraniliprole registered as a foliar spray and recently a mixture of chlorantraniliprole and thiamethoxam as a seedling drench Seedling drenches have been removed from the twowindow strategy used for foliar sprays with drenches now aligned with periods targeting the highest pest pressure allowing mode of action (MoA)free periods and rotation of different MoA insecticides to mitigate any resistance buildup in DBM

Susceptibility of field populations of the diamondback moth, Plutella xylostella, to a selection of insecticides in Central China

2016 ◽  
Vol 132 ◽  
pp. 38-46 ◽  
Author(s):  
Shuzhen Zhang ◽  
Xiaolei Zhang ◽  
Jun Shen ◽  
Kaikai Mao ◽  
Hong You ◽  
...  
Keyword(s):  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Central China ◽  
Selection Of

scholarly journals Gut Microbiota Mediate Insecticide Resistance in the Diamondback Moth, Plutella xylostella (L.)

2018 ◽  
Vol 9 ◽  
Author(s):  
Xiaofeng Xia ◽  
Botong Sun ◽  
Geoff M. Gurr ◽  
Liette Vasseur ◽  
Minqian Xue ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Insecticide Resistance ◽  
Plutella Xylostella ◽  
Diamondback Moth

Towards CRISPR/Cas9-based gene drive in the diamondback moth Plutella xylostella

2021 ◽  
Author(s):  
Xuejiao Xu ◽  
Tim Harvey-Samuel ◽  
Hamid Anees Siddiqui ◽  
Joshua Ang ◽  
Michelle E Anderson ◽  
...  
Keyword(s):  
Genetic Control ◽  
Plutella Xylostella ◽  
Control Strategies ◽  
Diamondback Moth ◽  
Regulatory Elements ◽  
Strategy Development ◽  
Gene Drive ◽  
Global Agriculture ◽  
High Level ◽  
Gene Drives

Promising to provide powerful genetic control tools, gene drives have been constructed in multiple dipterans, yeast and mice, for the purposes of population elimination or modification. However, it remains unclear whether these techniques can be applied to lepidopterans. Here, we used endogenous regulatory elements to drive Cas9 and sgRNA expression in the diamondback moth, (Plutella xylostella), and test the first split-drive system in a lepidopteran. The diamondback moth is an economically important global agriculture pest of cruciferous crops and has developed severe resistance to various insecticides, making it a prime candidate for such novel control strategy development. A very high level of somatic editing was observed in Cas9/sgRNA transheterozygotes, although no significant homing was revealed in the subsequent generation. Although heritable, Cas9-medated germline cleavage, as well as maternal and paternal Cas9 deposition was observed, rates were far lower than for somatic cleavage events, indicating robust somatic but limited germline activity of Cas9/sgRNA under the control of selected regulatory elements. Our results provide valuable experience, paving the way for future construction of gene drive-based genetic control strategies in DBM or other lepidopterans.

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