Ny. Su et al., ESTIMATING ORAL TOXICITY OF SLOW-ACTING TOXICANTS AGAINST SUBTERRANEAN TERMITES (ISOPTERA, RHINOTERMITIDAE), Journal of economic entomology, 87(2), 1994, pp. 399-401
A method is described for estimating oral toxicities (mug/g) of slow-a
cting toxicants against subterranean termites, Coptotermes formosanus
Shiraki and Reticulitermes flavipes (Kollar). Groups of termites were
fed with a known amount of medium containing a dye marker and a toxica
nt. Marked termites were evaluated for daily mortality after total con
sumption of the medium. Toxicant doses ingested by termites were deriv
ed from the total amount of toxicant in the feeding medium and the bio
mass of termites engaged in that feeding. Using oral LD50 estimates in
mug/g, the total amount of toxicant required to control a field colon
y can be projected.