News

Stewardship for late season application of herbicides in winter crops

Thursday, November 10, 2011

Stewardship for late season application of herbicides in winter crops  

The responsibility to avoid herbicide residues in delivered cereal, pulse and oilseed
grains sits squarely with grain growers and their advisers.

The application of herbicides late in the season to prevent weeds setting seed or to desiccate crops must be carried out with caution and in line with herbicide label recommendations.

It is essential to check if these practices are acceptable to buyers, as in some situations markets have extremely low or even zero tolerance to some pesticide and herbicide residues.

Late season herbicide use

There are three reasons to apply non-selective herbicides late in the season:

 

 

 

 

 -    just prior to harvest to manage late season weeds;
 -    in-crop spray topping of annual ryegrass to prevent seed set; and
 -    for pre-harvest desiccation of the crop to accelerate or even up ripening  
     to assist with harvest.

Click here (1,212KB, PDF) to download the fact sheet.