Tomato plant leaves turning yellow?

Question

I would be grateful if anyone could throw on light on what is causing the problem with my tomato plants as shown in attached photographs


http://www.flickr.com/photos/28122882@N03/show/

Answer 1

This is classic magnesium deficiency. You can use a general soluble fertilizer like Miracle Gro or Epsom salts as suggested above.



See the link below for pictures of tomatoes with various mineral deficiencies.

Answer 2

I believe that your tomato plants have been affected either by weedkiller spray, contamination from weedkiller solution or possibly ethylene gas from some source, say a gas heater in the greenhouse. The symptoms are yellowing and distortion of the growing tip leaves, and pronounced bending of the petiole with the leaves hanging down in a pronounced manner. Cut some samples , keep them in water and see if a local horticulturalist from College, garden centre or nursery can confirm or reject this hypothesis.

If confirmed, it MIGHT be possible to cut out the affected stems, letting sideshoots take over as the main leader stem, but best to get confirmation beforehand.

Best of luck.

Answer 3

Magnesium deficiency. Give 'em a dose of Epsom Salts, you can get it from a chemist cheaper than from a garden centre. Teaspoon to a pint and add to the watering can.

Keep the remaining salts in an airtight tin or jar *clearly labelled* as it's a mighty laxative!

Answer 4

I agree with William C, all tomato plants have their lower leaves die off as the plant grows. If it continues up the plant, then you have a greater problem.

Answer 5

I'd tend to go with an accidental weedkiller waft/contamination from somewhere, since the abnormalities are so uniform and concentrated on the growth tips.

Answer 6

Are you watering the plants to much or the roots are sitting in a clay soil that is very moist. Dont water as often and see what happens

Answer 7

Check out www.dirtdoctor.com



There should be something in the library that will explain your problem.



Otherwise, your plants look nice and strong.