Selective herbicides based on substituted thien-3-yl-sulphonylamino(thio)carbonyltriazolin(thi)ones and safeners
View Patent ↗The invention relates to selective herbicidal compositions that comprise an effective amount of an active compound combination comprising (a) one or more compounds of the formula (I) in which Q 1 , Q 2 , R 1 , R 2 , R 3 and R 4 are as defined in the disclosure—and salts of the compounds of the formula (I)— and (b) at least one of the crop-plant-compatibility-improving compounds listed in the disclosure. The invention further relates to the use of these compositions for controlling undesirable vegetation and to a process for preparing the compositions according to the invention.
1. A composition comprising an active compound combination comprising
(a) a compound of formula (I)
or salts thereof,
in which Q 1 , Q 2 , R 1 , R 2 , R 3 , R 4 are defined as follows
Ex. No.
Q 1
Q 2
R 1
R 2
R 3
R 4
I-2
O
O
CH 3
CH 3
OCH 3
CH 3
and
(b) a crop-plant-compatibility-improving compound of formula (IIe)
wherein
R 13 and R 16 each represent hydrogen, R 17 represents cyclopropyl, (X 4 ) n represents 2-methoxy, and (X 5 ) n represents hydrogen.
2. A composition of claim 1 , wherein the ratio of said at least one compound that improves crop plant compatibility per part by weight of said compound of formula I or a salt thereof is from 0.1 to 50.
3. A process for preparing a herbicidal composition comprising mixing a composition according to claim 1 , with one or more surfactants and/or extenders.
4. A method for controlling undesirable plants comprising allowing an effective amount of a composition according to claim 1 , to act on undesirable plants and/or their habitat.
5. A method according to claim 4 , wherein the undesired plants are controlled in areas of growing maize.
6. A method according to claim 5 , wherein 0.001 to 5 kg per ha of the composition are applied.
7. A method according to claim 5 , wherein 0.001 to 1 kg per ha of the composition are applied.
8. A method according to claim 5 , wherein 0.003 to 0.5 kg per ha of the composition are applied.
9. A method according to claim 5 , wherein the composition is applied pre-emergence.
10. A method according to claim 5 , wherein the composition is applied post-emergence.