I am not sure if it's a disease or what? Not all my tomatoes' leaves are yellow. They are brown at the end of the leaves, too.
By ruby1 from Augusta, GA
You need some Epsom salts in it. On the package are instructions. Or google epsom salts. Have used this for years.
Also, clean up your bottom of the plants. They need air space. Good rule of thumb is nothing closer than 10 inches from the ground. Remove all plant materials. Both these suggestions also take care of bottom rot from tomatoes too.
OH, never splash water on your plants. They prefer being watered by laying the hose on the bottom dirt. Gentle flow rather than hurried spray. Rain water is different. That comes anyway and washes the plants. Hose water is not the same as rain water.
It is my belief that what you are describing is Tomato Blight.
It is a disease which can turn all the leaves yellow, then brown. Interestingly enough, it doesn't seem to affect the fruits. It's almost impossible, at least for me it was, to do anything like apply this or that and fix the issue.
Sometimes its windy, the plant uses more water, sometimes its hot and more water evaporates than gets to the plant. The variables are there so check your tomatoes daily and if they need water, give them some. regular correct watering fixes almost every problem in Tomatoes. Next year be sure to plant them in a different location, and also consider buying a blight resistant seed, because,
What would make my tomato plants leaves turn yellow? I am growing them in a Topsy Turvy Tree. I don't even have any tomatoes on them yet.
Hardiness Zone: 8b
By JEAN from Portland, OR
Usually when tomato leaves turn yellow the plant needs a few drops of vinegar in the water before watering. Good luck with your tomatoes. Windgate
My hanging tomatoes are looking good, but some of the leaves are yellowing. What am I doing wrong?
Hardiness Zone: 10b
By Gini from Carmel, CA