tomatoes in greenhouse have caught Blight I have removed the effected plants but is there anyway I can clear this blight before next use of soil inside greenhouse
Any good fungicide applied to the soil should work for you. Here in the U.S. I use a product called Kocide 101 which contains copper fungicide. I'm sure a similar product would be available in the U.K. It's eco-friendly but will eliminate the fungus' living in the soils around the base of infected plants. Be sure to clean up any plant residue before applying... Best of luck
Here in the UK I give my soil a drench with Jeyes Fluid diluted to the specified amount as on the tin, also give the greenhouse a thorough clean and disinfection, as though it`s an hospital ward.
carlton. I do use rain water in the greenhouse may be some splashed on plants ? Blight shows its self as black line spreading up plant and plant starts sagging and dying right ?