Termiticidal activity of chitosan against the subterranean termites Reticulitermes flavipes and Reticulitermes virginicus

Autor: Dragica Jeremic, Telmah Telmadarrehei, Olanrewaju Raji, Juliet D. Tang
Rok vydání: 2017
Předmět:
Zdroj: Pest management science. 74(7)
ISSN: 1526-4998
Popis: BACKGROUND Chitosan is a derivative form of chitin, which is the major component of exoskeletons of arthropods and the cell walls of fungi. The antimicrobial activity of chitosan against lepidopterans, aphids, fungi and bacteria has been extensively investigated, but only one report on the termiticidal effect of chitosan on termites has been published. In this study, we examined the termiticidal activity of chitosan by exposing single colonies of Reticulitermes flavipes (Kollar) and Reticulitermes virginicus Banks to wood treated with six different concentrations of chitosan solutions. Termite mortality and percent mass loss of wood samples after exposure to termites for 4 weeks were calculated. RESULTS High termite mortality (≥ 94%) occurred during exposure of R. flavipes termites to chitosan-treated wood with ≥38 mg g-1 treatment concentrations (≥ 2% chitosan), while
Databáze: OpenAIRE