Herbicidal composition and method of use thereof

Abstract

The present invention relates to a to a method of controlling the growth of weeds, in particular, large crabgrass and white clover, using a herbicidal composition comprising mesotrione and a triazolinone herbicide such as sulfentrazone or carfentrazone-ethyl. The invention also relates to the use of this composition.

1 . A method for controlling or modifying the growth of large crabgrass or white clover, comprising pre-emergence application of a herbicidally effective amount of a composition comprising a herbicidally effective amount of a mixture of mesotrione and a triazolinone herbicide to the locus of the large crabgrass or white clover. 
   
   
       2 . The method of  claim 1 , wherein the large crabgrass or white clover is present in turfgrass. 
   
   
       3 . The method of  claim 1 , wherein the triazolinone herbicide is sulfentrazone. 
   
   
       4 . The method of  claim 1 , wherein the triazolinone herbicide is carfentrazone. 
   
   
       5 . The method of  claim 1 , wherein mesotrione is in a chelated form. 
   
   
       6 . The method of  claim 5 , wherein the copper chelate of mesotrione is used. 
   
   
       7 . The method of  claim 1 , wherein the combined amount of mesotrione and triazolinone herbicide applied to the locus of the weeds is between about 0.005 kg/ha and about 5 kg/ha. 
   
   
       8 . The method of  claim 7 , wherein the combined amount of mesotrione and triazolinone herbicide applied to the locus of the weeds is between about 0.1 kg/ha and about 3 kg/ha. 
   
   
       9 . The method of  claim 8 , wherein the combined amount of mesotrione and triazolinone herbicide applied to the locus of the weeds is between about kg/ha and about 1 kg/ha. 
   
   
       10 . The method of  claim 1 , wherein the weight ratio of mesotrione to triazolinone herbicide is between about 1:100 and about 1:1. 
   
   
       11 . The method of  claim 10 , wherein the weight ratio of mesotrione to triazolinone herbicide is between about 1:100 and about 1:2. 
   
   
       12 . The method of  claim 11 , wherein the weight ratio of mesotrione to triazolinone herbicide is between about 1:50 and about 1:5. 
   
   
       13 . The method of  claim 1 , wherein the mixture is impregnated in or coated on a fertiliser granule. 
   
   
       14 . (canceled)