"David.WE.Roberts" wrote

I'm seeing the first signs of blight.

A few dark patches on stems, a few marked leaves, a few marked tomatoes.

Mostly the tomatoes seem fine, there is still a large crop and they are
still ripening.

What is the best way to prolong cropping, and how long do you think I can
get away with it?


If they aren't Blight resistant varieties then a couple of days before the
plants turn totally black and collapse IME, even if Blight resistant they
are on the slippery slope and will only last another week or two. Even the
tomatoes that look fine will probably have blight and it will often show
after you pick them. Personally I'd pick off everything I think will ripen
and get rid of the rest and the plants.

Bordeaux Mixture or similar is your friend, start to spray as soon as rain
is forecast in July and before it happens, and then again every couple of
weeks if it remains damp/humid. That way the blight should not get a hold.
--
Regards. Bob Hobden.
Posted to this Newsgroup from the W of London, UK