US 12,336,538 B2
Method for controlling rats and mice with cholecalciferol baits
Thorsten Storck, Dossenheim (DE); and Sharon Hughes, Widnes (GB)
Assigned to BASF AGRO B.V., Arnhem (NL)
Appl. No. 15/318,814
Filed by BASF Agro B.V., Arnhem (NL)
PCT Filed Jun. 11, 2015, PCT No. PCT/EP2015/063071
§ 371(c)(1), (2) Date Dec. 14, 2016,
PCT Pub. No. WO2015/193171, PCT Pub. Date Dec. 23, 2015.
Claims priority of application No. 14172586 (EP), filed on Jun. 16, 2014; application No. 15150811 (EP), filed on Jan. 12, 2015; and application No. 15152162 (EP), filed on Jan. 22, 2015.
Prior Publication US 2017/0127680 A1, May 11, 2017
Int. Cl. A01N 49/00 (2006.01); A01N 25/00 (2006.01); A01N 25/34 (2006.01)
CPC A01N 49/00 (2013.01) [A01N 25/004 (2013.01); A01N 25/34 (2013.01)] 12 Claims
 
1. A method for controlling an infestation of undesired rats or mice in an environment to be protected comprising:
placing on a first day cholecalciferol baits at bait points in the environment to be protected and leaving the baits for a baiting time at the bait points,
wherein the baiting time is 7 days or less;
wherein the cholecalciferol baits are placed only on the first day of the baiting time and optionally on up to 3 further times within the baiting time in the environment to be protected;
wherein the cholecalciferol bait comprises 600 to 1000 ppm of cholecalciferol;
wherein for controlling mice, 1 to 10 cholecalciferol baits are placed at each bait point and the bait points are located in intervals of 0.3 to 10 m;
wherein for controlling rats, 1 to 30 cholecalciferol baits are placed at each bait point and the bait points are located in intervals of 1 to 25 m;
wherein the cholecalciferol baits have a palatability of at least 2.0,
wherein the method reduces the number of rats or mice by at least 90% in the environment to be protected at the end of the baiting time, and
wherein the cholecalciferol bait is a soft bait and comprises cholecalciferol, a fat, a vegetable flour, and optionally an edible seed.