Lower leaves on my tomato plant yellow and then wilt and die. Tried adding nitrogen and it mostly works to stave off problems but it still happens. Is this an issue of just not enough light hitting these leaves?

I don't see an spider mites on the plant.

Hi Allan Benamer . I suspect its Spider Mites . Because, Spider Mites can't be easily seen with the nakedeye, they can do substantial damage before they're identified. These mites feed on plants by feeding on plant cells characteristic symptom of such curling. Lets check once again at your end.

Is this what spider mites look like on the leaf?

Hi Allan Benamer. No. Sent image is not so clear. Through on zooming, It looks like Whiteflies or Mealybug. Lets check symptoms carefully by clicking on green links for taking control measures from Plantix library.

I checked for insects but don't see any. Here are more pictures of the diseased leaves up close. The first two pictures are of the top and bottom leaves. I've added more pictures and a movie of the leaves under magnification to a Google photos album at https://photos.app.goo.gl/AWbd56WKyaKZbeBt7 It looks a lot like spotted wilt virus but I see no thrips.

Could it also be septoria?

میرے ٹماٹر کے پتے موڑے ہویے ہے اسکا علاج تجویز کریں