Control of Matricaria In Subterranean Clover and Oats

Efficacy and crop safety of various broadleaf herbicides for the control of Matricaria in sub-clover and oats.

Merredin, WA, 2018

Summary

This trial was established on the 1st of May 2018 aiming to demonstrate to the extended David Grays network the efficacy of various broadleaf herbicides for the control of Matricaria and the crop effect of those herbicides on Dalkeith sub-clover and oats.

Treatments were sprayed on the 17thof July 2018 at 10am. The Matricaria was small (see pre-spray picture) as it is very difficult to control once established. Jaguar and Brom200 + Broadstrike offered the best compromise between control and crop safety. Talinor and Velocity gave 100% control of the Matricaria but smoked the clover too. These are your best options during a cereal phase. See ratings a photographs available through the dropbox link in the appendix.

Methodology

Treatment List

Trial design

Site, Crop and Application Details

Assessment Methods

Results

% Control (Matricaria) Vs. Crop Effect (35 DAT)

% Control (Matricaria) Vs. Crop Effect (65 DAT)

Conclusion

In this trial, a heavy and even background of Matricaria was established and with the 1m untreated buffers provided agreat demonstration of the performance of these herbicides. Most herbicides gave a descent level of control with 300mL MCPA, 30g Raptor and 330mL Amicide Advance offering unacceptable levels of control. Some take home points:

700mL Brom200 + 30g Broadstrike offered the best compromise between control and crop safety. Closely followedby Jaguar.
50g Broadstrike IBS offered good pre-emergent control, however seemed to excessively damage the clover.
Talinor and Velocity are the best options for the control of Matricaria in a cereal crop phase.