Michael Glynn asked 8 years ago
I have had a problem with botrytis on my tomatoes in a polytunnel this year. They had plenty of ventilation but I assume the cause is climatic (a combination of humidity and low light levels). I have grown tomatoes for 30 years and have never encountered this before. My question is: Can I spray the tunnel extensively inside (including the soil) with Jeyes Fluid to prevent the spores overwintering? If so, how soon can I replant the beds. Or, is there a better, less severe, product that would do the job?
