Broad mites (Polyphagotarsonemus latus) are microscopic pests that inject toxic saliva while feeding — and the damage they cause looks nothing like a typical bug problem. New growth comes out twisted, blistered, and weirdly glossy, almost like the leaves are wet or coated in plastic. Because they're invisible without strong magnification, broad mites are one of the most commonly misdiagnosed issues in cannabis — growers often blame pH swings, over-fertilization, or even genetics before realizing it's a mite. An early clue is tiny white dandruff-like specks on leaf surfaces — these are eggs covered in characteristic white tubercles, along with cast skins from molting mites. They strongly prefer new growth and can hitch a ride on your clothing, tools, and hands.