Tomato & other leaf veg. plants

[Puddintane]

My tomato plants are a disaster due to fungus and blight. The leaves turn spotted yellow then brown then crumble. My other leaf veg. plants seem to be affected also. I've sprayed the plants many times and pruned the affected leaves & stems to no avail. I've gardened the same way in the same area many years & have not had problems till recently. Is there anything I can spread on the soil and then turn under this fall to rid the fungus & blight for next years garden ???? Thank you, Puddintane

[Kim A]

The yellow leaf thing is magnesium deficiency and you need a high magnesium feed. We've had it really badly this year. I'm told by old horny sons of the soil that it's down to weather conditions. Can't help with the fungus, though, sorry!

[Clanad]

If it is a fungal problem (sounds like it due to the spotted leaf symptom), early next spring, spray the area with Dormant Oil. It's a sulfur based chemical one mixes with water. It's environmentally friendly, but smells terrible. Don't get any on shoes that you expect to take back into the house! This will help, but the main thing is to meticulously clean up the area this fall. Don't leave even one leaf (no pun inteneded) or stem, since they will carry over the fungus. Best of luck!

[WendyS]

Don't put any of the affected blighted plants onto the compost heap. Either burn them or put them in the dustbin. If possible try and select a different location for your tomato plants next year - not always easy in a small garden, I know but this does reduce the risk of infection.
Over the years I've found that possibly one of the best protections against vegetable diseases is to have really healthy soil which contains lots of manure and compost. This seems to provide the plants with more resistance to survive whatever would come along and attack them. A old gardener I knew who always grew suberb vegetables told me he doused his soil every winter with a very light solution of Jeyes Fluid to kill of fpests but I've never resorted to that as I feel it would be harmful to all the worms in my soil.