Disinfectant

I doubt if sulphur smoke would have much effect on blight spores as if indeed there are any they will be on or very close to the soil surface. Sulphur is as far as I understand mainly use to kill insects.
I doubt if the sulphur would do much damage to mature plants and a good washing should make them safe to eat.

I use Jeyes on the soil in my polytunnel to help kill of any over wintering pests and fungi. I dig out the top couple of inches every winter, lightly water the soil surface with dilute Jeyes and then cover with plastic for a few days to help trap the vapour. I then ventilate until the soil is dry and then add fresh compost.

If you had tomato blight it was most likely as a result of wind blown spores entering the greenhouse.

This RHS article should provide you with some useful info -
http://apps.rhs.org.uk/advicesearch/profile.aspx?pid=217

 

I've never used sulphur candles but I always thought you had to get everything out the greenhouse before using them.
They kill pests and fungus apparently, sulphur is a good fungicide, burn it and its probably lethal.

Never heard of growing purple sprouting broccoli in a greenhouse.

Jayes is good.:thumb:

 

Rabbits and pigeons lead me to put a few purple sprouting broccs in GH a few years ago, and never looked back! Crops really well over a long period
and have added a couple of sprouts this year. After all the snow and frost this year the pigeons have stripped my leeks down to soil level, but the broccoli in the GH has come through and is just starting to sprout out.


Aria