Title: Study on Laboratory Screening for Resistance and Fitness of Cotton Aphid Aphis gossypii Glover to Imidacloprid and Beta-cypermethrin
Abstract: The sensitive strains of A.gossypi were screened by imidacloprid and beta-cypermethrin and the resistant strains were obtained.The fitness of resistant and sensitive strains of A.gossypii was compared by constructing life table.The results showed that the sensitive strains after selecting RRF12 was 7.90 with imidacloprid and 10.04 with Beta-cypermethrin.11 generations after resistance screening by rotational use of imidacloprid and beta-cypermethrin for cotton aphid,the resistance times of the two insecticides were 6.43 and 5.40 respectively.Comparison of the resistant and sensitive strains of cotton aphid,net reproductive rate values for ImR,BeR and ImBeR were 0.7658,0.8887,0.8110 respectively,intrinsic rate of population growth rates was 0.8955,0.8359,0.7569 respectively.The contents of glutathione-S-transferase(GSTs) shift in the resistant strains to imidacloprid were higher than the sensitive strains,and the contents of carboxylesterase and GSTs in resistant strains of cotton aphid to beta-cypermethrin were higher than the sensitive strains.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
Access and Citation
Cited By Count: 1
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot