Slow-activating stomach poison insecticide. Prepn: J. B. Lovell, US 4087525 (1975 to Am. Cyanamid). Activity: idem, Proc. Br. Crop Prot. Conf. - Pests Dis. 1979, 575. Field trials for control of red imported fire ant: D. P. Harlan et al., Southwest. Entomol. 6, 150 (1981); W. A. Banks et al., ibid. 158; for control of cockroaches: J. F. Milio et al., J. Econ. Entomol. 79, 1280 (1986).