Tomato Blight

[Dog House]

Can anyone suggest what decontamination should be carried out (if any) in a greenhouse where the tomatos have suffered from blight? They were container grown and all soil, foliage etc has been removed and safely destroyed. I had the makings of a lovely (if late) crop too............

[Cutecumber]

Sounds like you've done the best you can.

In theory, all greenhouses should be thoroughly cleaned from top to toe at least once a season to keep disease etc under control... but then you kill all the good stuff (like spiders) if you do that.

I'm just seeing the first signs of blight on some of the outdoor tomatoes, so I am facing a similar situation. Soul destroying, isn't it.

[Nicos]

I've cropped one tomato off my 12 outdoor toms- the rest have blight and will be pulled up this weekend
Greenhouse toms still look fine, but I've only had the door slightly ajar- now it's fully open in the heat and no doubt the spores will get in there soon??
Not got any ripe greenhouse toms yet- so fingers crossed.
Heritage currant tomatoes outdoors however are looking fine still, but only flowers and no fruit set yet!

I live in hope though!!

I'll spray the base and glass with something ( hoping for ideas here too!) if it gets inside.
Usually I just soap the windows down but this year I'll use something a bit stronger,but don't fancy anything inorganic.
What does anyone else recommend??

[clubroot]

whats those smoke canisters you can buy are they inorganic not sure

[Cutecumber]

They're sulphur candles - they're ok for all systems, but, again, they clear out the good things as well as the bad.

[leona]

what about the soil? mine were in the ground in the greenhouse

[Sunbeam]

I think my toms were blighty too - I have just ripped 12 plants out of the garden & put them straight on to the bonfire - they were black and slimey... I assume this is what it was. As they were in the veg plot I am unsure what to do with the area they were planted in.

[Cutecumber]

I'm still investigating exactly how blight spores are spread and perpetuated, but so far I gather that...

It is infected plant material - particularly potato tubers and tomato fruit - left laying around which harbours the fungus and makes the greatest contribution to spreading the disease. It is more likely that infection comes in on the air than from the soil where the plants were growing.

Bear in mind that there is a lot of contradictory information about blight out there, and this is a best guess from my reading of a lot of it!