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Evaluating the Exterra Termite Interception and Baiting System in Australia
2003 - IRG/WP 03-20267
The Exterraä Termite Interception and Baiting System (Ensystex Inc., Fayetteville, NC) was evaluated in a field experiment near Townsville, Australia. Cellulose-acetate powder containing either 0.05% weight/weight (w/w) or 0.25% w/w chlorfluazuron (Requiemä) was tested for its efficacy in eradicating colonies of the mound-building subterranean termite Coptotermes acinaciformis (Froggatt). Thirteen mounds were used. There was no evidence of repellence, but there was little feeding on replenished bait. Five colonies were eradicated by 0.05% w/w chlorfluazuron and five colonies by 0.25% w/w chlorfluazuron: another colony was moribund and eradication appeared imminent. Colony decline was first suspected some 12 weeks after bait application. Colony eradication was confirmed, by destructive sampling, about five weeks later. Indicators used to monitor colony health were reliable. A suite of urban trials, demonstrating the effectiveness of Exterra Requiem Termite Bait in controlling a wide range of subterranean termite species throughout mainland Australia, is presented and discussed.
B C Peters, S Broadbent

Practical applications of steamed larch wood to a termite bait system using chlorfluazuron
2003 - IRG/WP 03-10464
Less chemical strategies are required for decrease of damages to residents from chemicals such as organic phosphates and carbamates those are usually used to prevent termite attacks on wooden buildings. One of the strategies is a bait system that has already been employed in the termite-infested areas. We tried to use steamed larch wood as a monitor wood and a bait matrix to stimulate feeding actions of Coptotermes formosanus and Reticulitermes speratus on a termite bait system using chlorfluazuron. The results of about 140 field trials indicated that steamed larch wood is a specifically effective wood-feeder for both the termite species.
S Doi, S Shibutani, K Hanada, T Miyahara

Termite baiting system: A new dimension of termite control in the Philippines
2007 - IRG/WP 07-10608
The performance of a baiting system and efficacy of an insect growth regulator (IGR), chlorfluazuron, was evaluated against three economically important species of subterranean termites in the Philippines i.e., Coptotermes vastator Light, Microcerotermes losbañosensis Oshima and Macrotermes gilvus Hagen. Preliminary tests were conducted on secondary nests of M. losbañosensis and mounds of M. gilvus. In-ground Stations (IGS) baited with IGR were installed around the nests and monitored until the colonies were eliminated. Abundance of termites, mobility of colony, feeding activity and elimination period were observed. Field tests were conducted in selected houses infested with subterranean termites. Above-ground Stations (AGS) and IGS were installed and monitored at regular intervals. The bait was prepared based on the manufacturer’s recommended dosage. Laboratory test showed that populations of M. losbañosensis in IGS baited with IGR were eliminated in 17 to 19 weeks. Termites in IGS baited without toxicant were still active on the 19th week, the last week of observation. On the other hand, M. gilvus were eliminated in 15 to 19 weeks in stations baited with IGR. Termites were still active in Stations provided with bait without IGR. Under field conditions, period of termite interception, period of elimination and bait consumption varied among the termite species. The behavior of termites in stations baited with IGR was similar to those observed in the laboratory. M. losbañosensis were eliminated in 20 to 33 weeks after consuming 1,625 g to 2,820 g of bait. An estimated 1,820 to 8,170 g of termite bait was consumed to eliminate M. gilvus in 8 to 18 weeks. The toxicant was found very effective against C. vastator which were eliminated in 6 to 13 weeks after consuming 500 to 2,370 g of the bait. The three species of subterranean termites, M. losbañosensis, M. gilvus and C. vastator, were eliminated using 0.1% chlorfluazuron. Baiting is a potential subterranean termite control technology and its adoption by local pest control applicators will help reduce the risks brought about by using highly hazardous pest control chemicals.
C M Garcia, M Y Giron, S G Broadbent