Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Comparative toxicity of methyl bromide against ten Nearctic termite species (Isoptera: Termopsidae, Kalotermitidae, Rhinotermitidae).

Abstract

The toxicity of methyl bromide at 27°C was assessed against pseudergates, nymphs or alates of Zootermopsis angusticollis, Neotermes castaneus, N. jouteli, Incisitermes snyderi, I. minor, Cryptotermes cavifrons, Reticulitermes flaviceps, R. hesperus, Prorhinotermes simplex and Coptotermes formosanus. Estimates of lethal accumulated doses for 50 and 99% mortality ranged, resp., from 11.4 and 16.5 for R. hesperus pseudergates to 45.9 and 75.0 mg.h/litre for C. cavifrons pseudergates and nymphs. These results suggest that current label rate recommendations for methyl bromide are considerably higher than required.