Plutella xylostella: populational viability and susceptibility to control tactics

• Grant number: 10/12438-2
• Support Opportunities: Regular Research Grants
• Start date: November 01, 2010
• End date: October 31, 2012
• Field of knowledge: Agronomical Sciences - Agronomy - Plant Health
• Principal Investigator: Ricardo Antonio Polanczyk
• Grantee: Ricardo Antonio Polanczyk
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
• Associated researchers: Luís Garrigós Leite ; Manoel Victor Franco Lemos ; Sergio Antonio de Bortoli ; Sérgio de Freitas
• Associated research grant(s): 11/51227-0 - Working group on effects of global changes in the multitrophic interaction plants: natural enemies, AP.R

Abstract

Intensive cultivation of brassice favors pest occurrence as diamond back moth (Plutella xylostella) which damages are serious constrain to production and pesticides are the most common tactic against this pest. Although it's economic importance few studies were performed about P. xylosella populations genetic structure, but some of them indicates that populational variability may be an important factor in pest management background. So, using ISSR-PCR four Brazilian populations of P. xylostella will be molecular characterized and their susceptibility to some tactics (selective pesticides, Bacillus thuringiensis biopesticide and isolates, Beauveria bassiana isolates and entomopathogenic nematodes) will be evaluated in bioassays against second instar larvae. Besides mortality will be measured foliar consumption and subletal effects. Data will provide information about the influence of populational variability on P. xylostella management tactics. Besides this, valuable information will be provided about populations isolation and their impact on diamond back moth management conception. (AU)