Sugar leaves
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…
Powdery mildew: white dusty patches on leaves
White, flour-like spots on the top of leaves are usually powdery mildew. Remove affected leaves early, because new spores can appear every…