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Monitoring, cross-resistance, inheritance, and fitness costs of brown planthoppers, Nilaparvata lugens, resistance to pymetrozine in China.
Song, Xin-Yu; Peng, Yu-Xuan; Wang, Li-Xiang; Ye, Wen-Nan; Pei, Xin-Guo; Zhang, Yan-Chao; Zhang, Shuai; Gao, Cong-Fen; Wu, Shun-Fan.
Afiliação
  • Song XY; College of Plant Protection, Nanjing Agricultural University, Nanjing, China.
  • Peng YX; College of Plant Protection, Nanjing Agricultural University, Nanjing, China.
  • Wang LX; College of Plant Protection, Nanjing Agricultural University, Nanjing, China.
  • Ye WN; College of Plant Protection, Nanjing Agricultural University, Nanjing, China.
  • Pei XG; College of Plant Protection, Nanjing Agricultural University, Nanjing, China.
  • Zhang YC; College of Plant Protection, Nanjing Agricultural University, Nanjing, China.
  • Zhang S; College of Plant Protection, Nanjing Agricultural University, Nanjing, China.
  • Gao CF; College of Plant Protection, Nanjing Agricultural University, Nanjing, China.
  • Wu SF; College of Plant Protection, Nanjing Agricultural University, Nanjing, China.
Pest Manag Sci ; 78(10): 3980-3987, 2022 Oct.
Article em En | MEDLINE | ID: mdl-35633099
ABSTRACT

BACKGROUND:

The brown planthopper, Nilaparvata lugens, is considered the most destructive pest of rice in many Asian countries including China. Use of pymetrozine in insect resistance management (IRM) has been one strategy to control this pest. In this study, we reported the status of pymetrozine resistance in Nilaparvata lugens (Stål) collected from China over the period 2017-2021 and selected a strain of N. lugens resistant to pymetrozine and evaluated the cross-resistance, inheritance and fitness costs of the resistance.

RESULTS:

Monitoring data (2017-2021) showed that field populations of N. lugens in China developed moderate- to high-level pymetrozine resistance during these 5 years. By continuous selection with pymetrozine in the lab, the pymetrozine selected N. lugens strain (Pym-R98 ) developed a 225.2-fold resistance compared to a susceptible strain. The Pym-R98 strain showed high cross-resistance to dinotefuran (66.6-fold) and low cross-resistance to nitenpyram (5.2-fold) and sulfoxaflor (5.8-fold). Inheritance pattern analysis of Pym-R93 revealed that resistance to pymetrozine was polygenic, autosomal and incompletely dominant. Fitness costs of pymetrozine resistance were present in Pym-R90 and WA2020 strains with a relative fitness of 0.72 and 0.60, respectively. The developmental duration of Pym-R90 and WA2020 was significantly longer and hatchability was significantly lower compared to pymetrozine-susceptible strain (Pym-S).

CONCLUSIONS:

N. lugens has developed high level of resistance to pymetrozine. Pymetrozine-resistance brown planthopper had cross-resistance with some of neonicotinoids such as dinotefuran, nitenpyram and sulfoxaflor. The autosomal, incompletely dominant and polygenic resistance to pymetrozine in N. lugens and the fitness costs associated with this resistance can be exploited in IRM strategies to preserve the lifetime of pymetrozine for control of N. lugens in China. © 2022 Society of Chemical Industry.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Contexto em Saúde: 1_ASSA2030 Problema de saúde: 1_financiamento_saude Assunto principal: Hemípteros / Inseticidas Tipo de estudo: Health_economic_evaluation Limite: Animals Idioma: En Revista: Pest Manag Sci Assunto da revista: TOXICOLOGIA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Contexto em Saúde: 1_ASSA2030 Problema de saúde: 1_financiamento_saude Assunto principal: Hemípteros / Inseticidas Tipo de estudo: Health_economic_evaluation Limite: Animals Idioma: En Revista: Pest Manag Sci Assunto da revista: TOXICOLOGIA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China
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