Response of the Formosan subterranean termites (Isoptera: Rhinotermitidae) to baits or nonrepellent termiticides in extended foraging arenas.
Distance effects of three treatments, noviflumuron, fipronil, and thiamethoxam, against laboratory populations of the Formosan subterranean termite, Coptotermesformosanus Shiraki, were tested in extended foraging arenas with foraging distances of 50 m. The results showed that during the 10-wk test period, all termites were killed by noviflumuron baits, whereas the nonrepellent termiticides fipronil and thiamethoxam divided the laboratory populations into two groups after causing 25-35% worker mortality. The horizontal transfer of lethal effects of fipronil was < or = 5 m. For thiamethoxam, the distance of transfer was substantially shorter. Because of their dose-dependent lethal time, the nonrepellent termiticides did not fulfill the requirements of a liquid bait model.
Department of Entomology and Nematology, Ft. Lauderdale Research and Education Center, University of Florida, Institute of Food and Agricultural Sciences, Ft. Lauderdale, FL 33314, USA.
Nan-Yao
NY
Su
D000818:Animals; D001549:Benzamides / Q000494:pharmacology; D005247:Feeding Behavior; D006845:Hydrocarbons, Fluorinated / Q000494:pharmacology; D007300:Insect Control / Q000379:methods*; D007302:Insect Repellents; D007306:Insecticides / Q000494:pharmacology*; D020049:Isoptera / Q000187:drug effects*; D000073943:Neonicotinoids; D009574:Nitro Compounds / Q000494:pharmacology; D010078:Oxazines / Q000494:pharmacology; D011720:Pyrazoles / Q000494:pharmacology; D000077922:Thiamethoxam; D013844:Thiazoles; D005466:Fluorocarbons
D001549:Benzamides; D006845:Hydrocarbons, Fluorinated; D007302:Insect Repellents; D007306:Insecticides; D000073943:Neonicotinoids; D009574:Nitro Compounds; D010078:Oxazines; D011720:Pyrazoles; D000077922:Thiamethoxam; D013844:Thiazoles; C487613:noviflumuron; D005466:Fluorocarbons; C082360:fipronil