cauliflower seedlings curling up

Question

Cauliflower seedlings curling up and brown/grey – why? The leaves at the bottom of the stem over the last six weeks have been turning brown/grey and then curling up and becoming lifeless. They were potted into compost after purchase from Aldi.

Answer 1

I believe that your cauliflower seedlings have downy mildew. The following article will give you more information on downy mildew along with a course of treatment:

https://www.gardeningknowhow.com/plant-problems/disease/downy-mildew.htm