Methods for testing fumigant efficacies against termites
N-Y Su, R H Scheffrahn
Methodologies for testing fumigants against termites are reviewed and factors needed to be taken under consideration for standardization listed. Toxicity should be defined by both direct exposure to the gas and under more practical "barrier" conditions which include test enclosures simulating abiotic surroundings of the termites, i.e. wood, nest material, etc. To observe latent effects, mortality should be recorded periodically after exposure until rates decrease to control levels. Fumigant efficacy should be reported as a function of concentration and exposure time, termed lethal accumulated dose (LAD).
Keywords: FUMIGANTS; FUMIGANT EFFICACY; TERMITE FUMIGATION; LETHAL ACCUMULATED DOSE; ISOPTERA; COPTOTERMES FORMOSANUS; POPULATION DENSITY; HUMIDITY; FIELD TEST