By Howie10
France 
Put my cabbage plantscouple of weeks ago. Covered the ground in garden fabric, the thin woven stuff, planted through this, and even fitted collars around the plants to try and avoid cabbage root fly. But some of the plants leaves are turning yellow at the edges. Any ideas??
12 May, 2011
Answers
?? thanks for replying. Think so, but never used the ground cover before. But i do water every evening.
13 May, 2011
I don't think the root fly causes to leaves to yellow the whole plant sort of wilts. You could try the garlic spray to deter the butterflies or grown onions either side of the row of cabbages.
13 May, 2011
Are you watering enough?
12 May, 2011