Dewayne, I only partially agree with you about the plants having to be stressed from some other disease. I have found that plants hit by nematodes or fusarium are ripe picking for mites; but during very dry hot weather they will attack perfectly healthy plants. Last season during our long drought every plant in the garden got mites and after I finally got them under control many of the plants went on to produce tomatoes for 3 more months looking healthy as can be til they froze.
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