Cleaning - properly, properly cleaning...

What are you good folks using to clean your greenhouses now that the formulation of Jeyes has changed? Is the new formula any good?

For the past few years I have used snow foam, scrubbed with window brush, rinsed then washed again with multipurpose cleaner, rinsed then a bleach solution, before rinsing one final time. The thing is, I suffered really badly with blight here last year and as I am going to be doing much, much less this year I am keen to avoid a repeat.

 

Sorry, can't help you. We last cleaned our greenhouse about 25 years ago - or more.

 

Could over-cleaning be part of the problem?

 

Honestly couldn't say . We stopped because it took too much effort to move things out. We don't have any problem with infections but having a larger greenhouse and plety of ventilation might be the answer to that.

 

I've used Jeyes but am thinking it doesn't have any effect other than a nice smell.

Late blight overwinters in potato tubers left in the ground and can infect new crops of tomatoes, so remove any of those in your garden (easier said than done). Plus any old infected tomato plant material like roots can harbour blight overwinter. I used to completely dig out and replace the soil in my greenhouse every winter, this season I won't, instead planting into fresh bags of multipurpose. Also growing mostly blight resistant tomatoes should help.

 

Everything in mine is in pots, so no soil to dig out - but, I have a feeling that there may well be potatoes at the back of the garden as I keep getting volunteers there. I will get up the back with the tiller at some point and see what I can turn up