(3)???Existing stocks. 94.707(3)(a)(a) No later than 6 months after the applicable date under par. (d), any person, except a dealer or distributor, who owned any quantity of a pesticide listed in sub. (1m) or containing an active ingredient listed in sub. (1) (c) to (f) on the applicable date under par. (d) shall return or deliver all of that pesticide to the manufacturer or to the dealer or distr