Laboratory evaluation of six commercial termiticides against subterranean termite, Coptotermes gestroi Wasmann
IRG/WP 94-30034
Y Sornnuwat, C Vongkaluang, T Yoshimura, K Tsunoda, M Takahashi
Small specimens of Heavea brasiliensis (10 x 10 x 20 mm³) were exposed to the laboratory colony of Coptotermes gestroi Wasmann for 4 months after dip- or brush-treatment with six commercially available emulsifiable termiticides (alpha-cypermethrin, cypermethrin, permethrin, bifenthrin, chlorpyrifos and chlordane). Synthetic pyrethroids and chlorpyrifos were effective as well as 1% treatment of chlordane at lower concentrations. No marked difference in effectiveness was noticed between dip- and brush-treatments. Field trials will be planned to examine their efficacy in the actual conditions in the search for alternative termiticides.