rabbitfluff Posted August 6, 2009 Share Posted August 6, 2009 The 2 tomato plants I have in my greenhouse I think have got blight - grey mouldy looking leaves, browning stems. Can it spread to other things? There are a few peppers in there and cucumbers too. Also, is there any way I can prevent it spreading to my outdoor tomatoes - something I can spray them with maybe? They're only a few feet away from where the infected ones were so I'm a bit worried it could spread. As always - Thanks for any advice Quote Link to comment Share on other sites More sharing options...
chickencam Posted August 6, 2009 Share Posted August 6, 2009 What you have got sounds more like botrytis than blight, which is usually brown not grey, and blight is much more common outdoors. In any case remove as much of the affected vegetation as you can and throw in the bin or burn don't compost. then make sure that the plants have plenty of ventilation and are not over watered. Good luck. Quote Link to comment Share on other sites More sharing options...
Christian Posted August 6, 2009 Share Posted August 6, 2009 I heard that spraying the affected leaves with milk helps. No idea if it works though. Quote Link to comment Share on other sites More sharing options...
chickencam Posted August 7, 2009 Share Posted August 7, 2009 Milk certainly works with mildew but not sure about blight. You can use copper sulphate sprays which I think are approved for use in organic gardenning but I am not sure. Quote Link to comment Share on other sites More sharing options...
Valkyrie Posted August 7, 2009 Share Posted August 7, 2009 Yes, Bordeaux mixture is acceptable in organic rules - it contains copper. I would be very surprised if the greenhouse toms have it and not the ones outside and I agree it sounds as though it might be more to do with damp mould - botrytis. You can always use a solution of washing up liquid diluted to stop the spread on the leaves in the greenhouse. Mine look sad too, plus they need a dose of epsom salts as they seem to require a bit of magnesium. The damp mould can spread, so remove any dead and decaying leaves around. Quote Link to comment Share on other sites More sharing options...
sjp Posted August 9, 2009 Share Posted August 9, 2009 found blight on some of my toms in the greenhouse last night my own fault left the green house closed couple of days last week it increased the humidity lost 6 or 8 toms to it greenhouse staying open now as well no blight yet outside on toms but only a matter of time already got it on the spuds at home and the allottments only the sarpo's left unafected Quote Link to comment Share on other sites More sharing options...
rabbitfluff Posted August 10, 2009 Author Share Posted August 10, 2009 Thank you for the replies. It certainly looks like botrytis more than blight from checking pictures (I'd never heard of it until I read your reply). I binned the plants from the greenhouse hoping to stop it spreading but I noticed yesterday about half of the plants outisde are now showing signs. Would it be worth spraying these with the Bordeaux mixture to slow down the spread to try and save some tomatoes or would it be better to just cut my losses and bin all the infected ones? Quote Link to comment Share on other sites More sharing options...
chooklady Posted August 10, 2009 Share Posted August 10, 2009 My toms in my greenhouse definately had blight. I wasn't sure when I posted my question here but since then I have seen a magazine article with photos, it was exactly what was wrong with mine. And it sounds the same as yours, brown patches on stems and shivelling leaves. They were disposed of and the grow bags and started again, I now have 6 very healthy massive plants. Quote Link to comment Share on other sites More sharing options...
