Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
Journal of Entomology
Year: 2004  |  Volume: 1  |  Issue: 1  |  Page No.: 17 - 20

Pattern of Cross Resistance in Lambdacyhalothrin and Betacyfluthrin Selected Populations of Helicoverpa armigera Hub.

T. Ramasubramanian and A. Regupathy    

Abstract: In Helicoverpa armigera, withdrawal of selection pressure for fourteen consecutive generations resulted in 2.58 and 3.01 fold increase in the susceptibility to lambdacyhalothrin and betacyfluthrin, respectively. Similarly, continuous selection enhanced the resistance level to the extent of 6.77 and 7.14 fold to the respective pyrethroids. Populations selected for resistance to lambdacyhalothrin and betacyfluthrin showed positive cross resistance to all other pyrethroids tested and no cross resistance to endosulfan. The increased level of mixed function oxidases with advancement of generation favoured the positive cross resistance among the pyrethroids.

Cited References   |    Fulltext    |   Related Articles   |   Back
 
 
   
 
 
 
  Related Articles

 
 
 
 
 
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility