Key Points
- Two troublesome Phalaris grasses in Canterbury are: Phalaris (Phalaris aquatica) and Gnawed canary grass (Phalaris paradoxa).
- Phalaris was controlled by post-emergence applications of Topik, Hussar, Turonex, Puma and two unregistered (on cereals) products: Sencor and Topogard.
- Gnawed canary grass (relatively harder to control) was controlled by post-emergence applications of Topik, Hussar, Puma and Sencor, and by earlier sequential applications of Gardoprim (unregistered) pre- followed by Sencor post-emergence.
- Some herbicides showed temporary damage to the crop but no significant yield loss was observed.