Lettuce - Sclerotinia

Key Points:

1. Sclerotinia diseases are a major cause of crop loss in a range of crops such as carrots, beans, brassicas and lettuce

2. Crop losses can range from 10 to 45%

3. Intensive cropping of susceptible crops in rotations has led to build up of the fungus in the soil

4. Chemical controls are limited and under conditions of high disease-pressure these do not always prove effective

5. Better application and timing of registered fungicides with the right volume of water will improve effectiveness

6. BOSCALID is effective in controlling Sclerotinia on beans and lettuce

7. Green manure Brassica crops in rotation will reduce disease carryover and suppress Sclerotinia development in the soil

8. Select Sclerotinia tolerant crop rotations on high disease-pressure sites

9. See also Matters of Facts No.7 download pdf 121kb

No.25 download pdf 155kb