Integrating drift reduction technologies with agronomic practices

Researcher:

Eric Johnson, L. Nielsen and C. Gampe, Agriculture and Agri-Food Canada, Scott SK, T. Wolf and B. Caldwell, Agriculture and Agri-Food Canada, Saskatoon SK

Project Code:

CARP SCDC 11/05-03B

Final Report:

March 2011

Summary:

It is well known that a contact herbicide such as Liberty is less effective on hard-to-wet weeds such as wild oat or cleavers. Wild oat control can be improved by tank-mixing with a Group 1 graminicide; however, there are no tank-mixes that will improve control of cleavers. The objective of this experiment was to determine if twin nozzle configuration improved the efficacy of contact herbicides, compared to a single nozzle configuration. Five different field studies at the Scott Research Farm, showed no conclusive benefits to using a twin nozzle configuration over a single nozzle configuration in terms of improving the efficacy of contact herbicides such as Liberty.