Beachcomber wrote in message
...
Somewhere I picked up a bit of advice which was that liming the ground
helped avoid parsnip canker. I limed heavily last year and put down
limestone chippings and I am glad to report that the advice appears to
have
been very sound. Hardly a sign of canker, the first time for many years.
Many thanks whoever it was





Stand up and be counted, stop the war




http://www.cabi-publishing.org/Books...0851991297.asp tells you
more than is quite healthy about the carrot tribe including their pests and
diseases.

This magazine's web pages have some practical advice:

http://www.which.net/gardeningwhich/...arrots2.html#3