2009 has, in Somerset, been the third consecutive year of rampant blight on outdoor tomatoes. This year it started three weeks later in late July and has even been cropping up indoors because of a lack of sun and continual dampness of the air. Fortunately some sunshine reappeared after the full moon on August 7th but my outdoor tomato plants are consigned to compost – not burnt because blight spreads in the air rather than from the soil – while I am cutting off any odd blight infected leaves from indoor plants as I see them, on a daily basis.
All watering in the polytunnels, at about four day intervals in fine weather and weekly if dull, is done at soil level so as not to wet the leaves. I deleaf from the ground up to the lowest fruiting truss, about a foot up as I write this in mid August.
It is another reminder that we live at a relatively northern latitude where tomato growing needs considerable care, effort and luck to be successful. Outdoor tomatoes are little more than a gamble at long odds.