Laboratory and field evaluations of lithium perfluorooctane sulfonate baits against domiciliary and peridomestic cockroaches in Penang, Malaysia

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Laboratory and field performance of a bait toxicant, lithium perfluorooctane sulfonate (Sulfotine^<TM>) [LPOS] in bait station (1% LPOS) in comparison with a commercially available bait station (containing 0.5% chlorpyrifos) were tested against the American cockroach,Periplaneta americana (Linnaeus) and other peridomestic cockroach species in lowincome houses and apartments in Penang Island, Malaysia. Laboratory evaluation indicated that there was minimal difference between the performance of LPOS baits and that of the chlorpyrifos bait, when tested against P. americana, P. brunnea and P. australasiae. In field studies, LPOS- and chlorpyrifosbased bait stations reduced trapped domiciliary and peridomestic cockroaches by 95% and >85% within the first two weeks following treatment, respectively. At the 12th week post-treatment, LPOS still provided >99% reduction in cockroach trap counts. Further studies were executed to evaluate the effects of bait numbers on the performance of LPOS baits against the American cockroach in suburban apartments (35.8 m^2). It was demonstrated that 4-8 baits were needed to achieve good control of the cockroach population (i. e. about 90% reduction within 1 week post-treatment). Sanitation levels were positively correlated with percentage reduction in trap counts in houses treated with lower bait numbers ; however, when higher number of baits were used, the role of sanitation on reduction of cockroach numbers was lessened.
日本衛生動物学会の論文
2003-12-15

Laboratory and field evaluations of lithium perfluorooctane sulfonate baits against domiciliary and peridomestic cockroaches in Penang, Malaysia

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