The crop tolerance of red and alsike clover and weed control efficacy of spring-applied herbicides was evaluated in a field trial planted at Melfort, SK, 2020. The aim of the small plot replicated trial was evaluation of three spring-applied herbicides: Authority and Valtera at 1X and 2X recommended rates of application, Viper ADV, and Viper ADV tank mixed with Authority or Vaterra, and compare the applications to an unsprayed control (check).

The crop tolerance of red clover and weed control efficacy of fall-applied herbicides was evaluated in a field trial planted at Melfort, SK, spring 2017.

The aim of the trial was screening of six fall-applied products at 1X and 2X recommended rates of application and compare the application to an unsprayed control (check). The treatments were not replicated and yield data was not collected. However, the researchers at the Northeast Agriculture Research Foundation identified products with potential for use in seed production.

Objective/Rationale: To evaluate the crop tolerance and weed control efficacy of spring-applied herbicides to Red clover, in support of registration under the Minor Use Program.