Growing parsnips under enviromesh has given us happier plants. The photo below shows how well the parsnips have developed, with very long roots. We have just thinned the row.
The parsnip leaves are in perfect conditiom, but in previuos years the parsnips never looked well and grew slowly. We think the enviromesh must have kept the insects off the parsnips & these were the insects which caused unseen damage which resulted in slow growth.