Browning / necrosis

Underwatering: a light pot and a limp plant A limp plant in a pot that feels very light probably just needs water. Water it slowly until the whole pot is… Light burn: bleached leaves closest to the lamp Pale or bleached leaves at the very top of the plant, closest to the light, may mean too much light or heat.… Heat stress: when the tent is running too hot Wilting or curling on a plant with moist roots, in a tent that runs hot, may be heat stress. Measure the temperature… Nutrient burn: brown tips and edges from too much feed Brown, crispy tips or edges after a stronger feed may be nutrient burn, but other problems look the same. Test before you… Hemp russet mites: the pest you can’t see Upward-curling leaf edges and a dull, bronzed look, with no webbing and no bugs you can find, may mean russet mites. They're… Caterpillars in buds: corn earworm and what follows Tunnels, droppings and wilting tips in flowering buds usually mean caterpillars, often corn earworm outdoors. Check buds by hand from the start… Bud rot: brown, dying buds and gray fuzz A browning, dying section of bud, sometimes with gray fuzz, usually means bud rot. It can't be cured and it often starts… Root rot: brown roots and a plant that keeps declining Wilting or stunting that watering and feeding don't fix, with brown or decaying roots, points to root rot. Check the roots before…