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Re: Burrowing Fly

Allan Day wrote:
> 
> On Sat 16 May, Michael D. Cook wrote:
> > At 02:21 PM 5/16/98 EDT, you wrote:
> > >
> > >Why do you feel you must kill them all?
> > Sheila Smith wrote:-
> > However, I have lost my broccoli four years in a row to maggots, and since
> > I don't use poisons, there is nothing I can do once the eggs have hatched,
> > so my concern was that if this was a cabbage fly, I wanted those eggs gone.
> 
> If there is any possibility of maggots from cabbage root fly we use
> brassica collars, which you put round the stem to stop the fly laying
> eggs there.

Allan, I've never had good results with the collars.  I've tried sveral
materials but the fly always seems to lay her eggs in the "seam" between
stem and collar.  But I have had excellent results with Reemay mesh
keeping the cabbage fly out.  I have some superb cabbages this year and
the broccoli and cauliflower are starting to head out nicely.  100%
survival so far versus 50-80% losses in past years!

> Not to be confused with caterpillars from the eggs of cabbage white
> butterflies. Use Fleece or fine mesh over the crop, or go round
> frequently and squash the eggs or the caterpillars. Or use bacillus
> thuriensis(hope that's right)

It's Bacillus Thuringiensis...

Steve  (Maritime...)


> 
> --
> Allan Day Hereford HR2 7AU allan@crwys.demon.co.uk
> Tel:- 01432 275443 (+answer m/c)
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