“Hi! Doing good? Please, can you tell me if this is tomatoes mosaic virus or others, or simply burn from the heat lamp? How can I send you pictures, please? Thank you for caring! Anne ;-)))” Question from Anne of San Diego, California
Answer: It is hard to tell at this stage. There are points where physical damage, such as foliage burn or herbicide damage, can certainly look much like a disease. Nutrient deficiency (click here to learn about tomato nutrient deficiencies) can also look much like a disease. With that said, it is rare for seedlings to get a mosaic virus in the home. These diseases are often vectored by insects, though if you are a smoker, tobacco mosaic virus is very stable and can be transferred from contaminated cigarette tobacco to a seedling, though this is rare, too. I recommend placing the seedlings in question apart from the others, feed them, and watch them. If they pull out of it, then it was not a disease. If the foliage looks more and more diseased, then dispose of the plant. Click here to for a good look at advanced mosiac virus in tomatoes.
Black Gold Horticulturist
About Jessie Keith
Plants are the lens Jessie views the world through because they’re all-sustaining. (“They feed, clothe, house and heal us. They produce the air we breathe and even make us smell pretty.”) She’s a garden writer and photographer with degrees in both horticulture and plant biology from Purdue and Michigan State Universities. Her degrees were bolstered by internships at Longwood Gardens and the American Horticultural Society. She has since worked for many horticultural institutions and companies and now manages communications for Sun Gro Horticulture, the parent company of Black Gold. Her joy is sharing all things green and lovely with her two daughters.
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