Mirex residues in nontarget organisms after application of experimental baits for fire ant control, southwest Georgia--1971-72.
Mirex, the only compound approved for control of the red imported fire ant (Solenopsis invicta) and the black imported fire ant (Solenopsis richteri), is normally applied at a rate of 1.40 kg/ha. (1.25 lb/acre). Influenced by recent studies showing that low levels of mirex are toxic to certain nontarget organisms, particularly estuarine species, authors report here on a monitoring study of mirex in three large treatment areas of southwest Georgia. Four formulations of bait were applied aerially in 1971-72. Low-level residues were observed in small terrestrial vertebrates and invertebrates and in fresh-water inhabitants. Levels detected were about the same for all baits. Maximum residues were detected 1-3 months after treatment and gradually declined to low levels of 0.02-1.16 ppm 1 year after treatment.
D000663:Amphibians / Q000378:metabolism; D000818:Animals; D002849:Chromatography, Gas; D005845:Georgia; D007313:Insecta / Q000032:analysis; D007306:Insecticides / Q000032:analysis*; D008917:Mirex / Q000032:analysis*; D009835:Oligochaeta / Q000032:analysis; D010573:Pesticide Residues / Q000032:analysis*; D012104:Reptiles / Q000378:metabolism; D012788:Shrews / Q000378:metabolism; D013112:Spiders / Q000032:analysis
D007306:Insecticides; D010573:Pesticide Residues; D008917:Mirex