Several commercially available strains of the entomopathogenic bacteria Bacillus thuringiensis (Bt) were tested to evaluate their efficacy in controlling Tuta absoluta, in terms of larval mortality, of reduction in larval feeding activity and subsequent damage. Tests were conducted on T. absoluta young larvae under laboratory and extended laboratory conditions, both after ingestion and topical application. The mortality rate, the number of infested leaflets and the amount of infested surface per each leaflet were recorded. The formulation containing the strain kurstaki SA12 resulted the most effective in controlling T. absoluta in terms of induced mortality as well as damage reduction, both in the topical and ingestion toxicity trial. Similar trend, although without significant differences, was recorded in the extended laboratory trial.
|Titolo:||Efficacy of commercial strains of Bacillus thuringiensis in controlling Tuta absoluta: laboratory tests|
|Autori interni:||SISCARO, Gaetano|
TROPEA GARZIA, Giovanna Maria Daniela
|Data di pubblicazione:||2012|
|Appare nelle tipologie:||1.1 Articolo in rivista|