Leaves Turning Bronze, Yellow, or Tan
Unchecked stippling leads to larger areas of discoloration: leaves take on a dusty bronze or yellow-tan hue. On tomatoes (Solanum lycopersicum, domesticated from wild Andean species), it looks like premature sunburn, but it actually stems from extensive cellular damage caused by feeding mites.
This bronzing often starts on older leaves and moves upward, signaling a widespread infestation. I once watched my zucchini leaves shift to a uniform bronze tone—an unmistakable call to action! When you see that color change, it’s imperative to boost humidity, wash leaves, and apply miticidal treatments before too much photosynthetic tissue is lost.