The severity of seed and soil-borne diseases varies by site and season. This update provides further information from one high risk site in South Canterbury.
Key points
- The lack of efficacy of fungicides is a major concern, particularly if they are reducing yields. There is a significant cost associated with applying fungicides and if, at a number of sites in New Zealand, they are providing no control and potentially reducing yield then the reason needs to be understood.
- No fungicide treatment increased yield in this trial, or in the three trials in the previous two seasons.
- To date this project has not identified any new control strategies which are more effective than commonly used treatments.