title: Laboratory and field evaluation of pyriminyl as a poison for Rattus norvegicus.
abstract: Laboratory tests indicated that the optimum concentration for pyriminyl in rat baits was between 1% and 3%. In field trials in which 0.5% pyriminyl (the concentration in commercial use) was compared with 2.5% zinc phosphide for the control of rats on farms, the pyriminyl treatments were significantly less effective than the zinc phosphide even when the poisoned baits were left down for 7 days instead of 1 day after prebaiting. Both poisons were as effective in medium oatmeal bait as they were in medium oatmeal containing 5% corn oil and 5% sugar.
mesh_terms: D000818:Animals; D008297:Male; D010671:Phenylurea Compounds; D010720:Phosphines; D051381:Rats; D011919:Rats, Inbred Strains; D012375:Rodent Control / Q000379:methods*; D012378:Rodenticides; D017967:Zinc Compounds
chemical_list: D010671:Phenylurea Compounds; D010720:Phosphines; D012378:Rodenticides; D017967:Zinc Compounds; C009701:zinc phosphide; C012598:pyriminil