1. The use of diuron for thinning, preferably for thinning fruits. Thinning method, characterized in that the agent containing diuron is applied to the organs of the plant. 3. The method according to claim 2, characterized in that the decimation is decimation of the fruit. The method according to claim 2, characterized in that thinning of pome fruits is carried out. The method according to claim 2, characterized in that thinning of apple varieties is carried out, such as, for example, Boskoop, Braebum, Cox Orange, Elstar, Gala, Gloster, Golden Delicious, Fuji, Kanzi, Jamba, James Grieve, Jonagold, Jonathan, Lobo , McIntosh, Red Delicious, Spartan, or pear varieties, such as, for example, Conference, Quitte, and Japanese pear. 6. A method according to claim 3, characterized in that the decimation of the fruit is carried out at the stage of the fetus from 6 to 30 mm, preferably at the stage of the fetus from 8 to 17 mm. A method according to claim 2, characterized in that the agent used is an agent that contains: at least 70 wt.%, Preferably at least 80 wt.%, Particularly preferably at least 90 wt.% Water； from 0.001 wt.% up to 0.2 wt.%, preferably from 0.002 wt. % to 0.1 wt.% and particularly preferably from 0.002 to 0.2 wt.% diuron. 8. The method according to claim 7, characterized in that the tool further comprises additives. The method according to claim 7, characterized in that the tool further also contains, or in each case does not contain, other thinning active substances, growth regulators or other agricultural active substances. The method according to claim 7, characterized in that the agent further comprises: - calcium salts and preferably still formate. The method according to p. 10, characterized in that the tool contains calcium formate, and the mass ratio of diuron, calcium, calculated as calcium oxide, and formate, calculated as formic acid, is preferably 1: (0.1-500) :( 0.16-900), preferably 1: (0.5-100) :( 0.8-180) .12. The method according to p. 2,
