Key Points
- In peas, pre-emergence tine weeding seems to be an effective treatment. In weedy fields, a follow-up weeding at early post-emergence (2.5 leaf stage) will give yield increases. In lowweed paddocks, the second tine weeding may be redundant if the crop is growing vigorously.
- Late post-emergence tine weeding (> 5-leaf stage) is not advantageous. This treatment on its own does not control weeds before the critical period of weed competition in peas.
- Passing through a crop older than 5-leaf stage may cause damage to some pea cultivars. Results indicate that semi-leafless cultivars may be more sensitive to pulling by tine than conventional cultivars.
- Uniform planting is critical in producing a pea crop with as few gaps as possible to minimise opportunities for weed growth.