Talkback: Prepare your greenhouse for spring

I got my first green house last year and grew tomatoes which unfortunately got blight. It was mentioned that i should have used tap water instead of rain water. Is there a possibility this disease will carry through into this year if I grow a tomato crop again. Thank you

In relation to automatic vent openers, be aware that on a windy day, with sun, the windows will open automatically and the force of the wind can whip out the glass - as happened to me!