Tomato leaf spotting caused by magnesium deficiency?

Tomato    State College, PA

This is a beefsteak tomato plant. Which nutrient deficiency or pest damage would produce the yellow blotching in the above pictures? The context is: 2 days after transplanting, large healthy plants, fertile garden soil, variety is beefsteak, and these leaves are the lower leaves - the upper leaves are fine. Based on this, my hypothesis is magnesium deficiency, but I'm not certain.

Posted by: Annie Klodd (1 point) Annie Klodd
Posted: June 6, 2016


I won't think it is magnesium deficiency. It looks like spider mite damage. The mite infected leaves show patterns of tiny spots or stipplings. The severely infected leaves may curl and drop off. You can see mites under leaf surface by using magnifying glass.
1. Remove the infected leaves and burn them.
2. Spray strong jet of water to knock off the mites.
3. Also you can spray neem oil or insecticidal soap.

Posted by: Dr. Ravishankar Narayana (11 points) Dr. Ravishankar Narayana
Posted: June 7, 2016

It is not magnesium deficiency. It would appear spider mite

Posted by: Dr. Raffaele Giurato (6 points) Dr. Raffaele Giurato
Posted: June 7, 2016

i agree with other answers, it should be red spider mites attack

Posted by: lorenzo (1 point) lorenzo
Posted: June 10, 2016

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