Article 2 Specification of poisons
Warfarin (3-(a-acetonylbenzyl)-4-hydroxycoumarin) and the soluble salts of warfarin, in each case distributed evenly over a bait comprising whole grains of wheat at a concentration of not more than 0.02 per cent. weight of warfarin for weight of bait, are hereby specified as poisons for use for the purpose of destroying grey squirrels.