"Bob Hobden" wrote in message
...
:
: "Bertie Doe" wrote ...
: I'm about to get a delivery of 100 plugs of cauliflower and cabbage, but
: my normal supplier of CR Control, say it's now banned by the Gov.
:
: He suggests using collars, which stops the maggots reaching down into
the
: roots - but is there an alternative on-line. I'd prefer to use a dip
: treatment. I can't imagine farmers putting collars on fields of
brassicas.
:
: The collars only work on Cabbage Root Fly.
: Club Root is a disease which remains in the soil and reinfects young
plants.
: A high pH helps which is why you lime a brassica bed, and growing them in
: pots until quite large before planting out helps too.
: An old gardener I knew used to disinfect, what was to be his brassica bed,
: during winter with Armillatox (or was it Jeys). He never had Club Root on
: his brassicas or White Rot on his onions.
:
: --
: Regards
: Bob Hobden
: 17mls W. of London.UK
:
I bring the plants on from seed in fresh compost and put garden lime in the
planting hole. Works mostly. As Bob says, your collars are for cabbage root
fly which is very prevalent this season