Disease? Window sill tomato plant leaves

5 years ago

INDOOR: This volunteer plum tomato seedling began growing next to a potted rosemary plant; some volunteer seed. But it was doing well, even flowered and has small fruit starting. I’ve had it growing under some lights, then a sunny window..

I know that tomatoes this size DONT like struggling to grow indoors, but I’d like to try to keep it.

The leaves are looking worse by the day. Photos below. Disease? Insects? Deficiency? Thanks for any help. FWIW, indoors, New England, Zn 5a (too cold to put it outdoors for several weeks yet).

Featured Answer

booberry85

5 years ago

Could be a magnesium deficiency. Try feeding it a solution on 1 teas epsom salts to 4 cups water. It could also be a manganese deficiency. You may be able to get manganese sulfate at a gardening center to treat that. I would look up both magnesium and manganese deficiencies to better pin it down.

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Comments (6)

petalique
Original Author
5 years ago
Thanks, booberry. It is in a 7” pot in exhausted potting mix. Entangled with a Thai Basil plant. I know, I have a nerve. I will repot it, bigger pot, trim it (bin the foliage); then I can give it some dilute epsom salts.

Another question. I have a bag of Epsoma tomato fertilizer And am wondering if I might make a very weal solution of that. Maybe 1/4 teaspoon to a quart of water?

This is an experiment at this point.
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vgkg Z-7 Va
5 years ago
It almost resembles spider mite damage, check the underside of the leaves for webbing and/or tiny mites. Being that it's in a window sill (inside) it's a long shot.
Labradors
5 years ago
I was thinking that too vgkg.

Linda
booberry85
5 years ago
I would check your tomato fertilizer to see what's in it first. If there isn't magnesium or manganese it might not be worth using. I am not a tomato expert, so checking for spider mites is not a bad idea BEFORE fertilizing. I would google pictures of magnesium deficiencies, manganese deficiencies and spider mite damage to see what most closely looks like what's going on with your tomatoes.
tallyhill
5 years ago
last modified: 5 years ago
+1 more vote for the mites...especially indoors.