Cannabis Doctor Quickly Diagnose Your Cannabis
Nitrogen Toxicity in Cannabis: Signs and Fixes
Nitrogen toxicity in cannabis makes leaves turn very dark green and glossy, with the leaf tips hooking down like a claw. It’s caused by feeding …
Nitrogen Deficiency in Cannabis
Nitrogen deficiency in cannabis turns the oldest, lowest leaves pale lime green, then evenly yellow, before they wilt and drop. The yellowing climbs the plant …
Molybdenum Deficiency
Molybdenum (Mo) is a micronutrient required in extremely small amounts, yet its role is vital in the development and metabolic function of cannabis plants. It …
Manganese Deficiency
Manganese Deficiency in Cannabis: Identification and Correction Manganese (Mn) is a critical micronutrient involved in photosynthesis, enzyme activation, and nitrogen assimilation—processes fundamental to cannabis health …
Leaf Septoria / Leaf Blotch
Leaf Septoria (Yellow Leaf Spot) in Cannabis: Identification and Management Leaf Septoria, also known as yellow leaf spot or leaf blotch, is a fungal disease …
Broad Mites or Russet Mites
Among the many mite species that pose a threat to cannabis plants, broad mites (Polyphagotarsonemus latus) and russet mites (Aculops cannabicola) are among the most …
Nutrient Burn on Cannabis: Signs, Causes and Fixes
Nutrient burn shows up as yellow, then brown and crispy leaf tips on a cannabis plant that’s getting a feed stronger than it can use. …
Overwatering Cannabis: Signs and How to Fix It
Overwatering cannabis makes the leaves droop and curl down from the stem, but they look full, swollen and firm instead of thin and limp. The …
Pests, Bugs & Viruses
Identifying Plant Pest For growers one of the worst issues to deal with are insects or other pest that survive off your plant and will …
pH Fluctuations
Ph Fluctuations Solved Problem: Brown or tan spots appear on the leaves. If you water your plants with the wrong pH over several days, they will …
Phosphorus Deficiency in Cannabis
Phosphorus deficiency in cannabis starts on the older, lower leaves, which turn an unusually dark green or blue-green before the stems and leaf stalks go …
Potassium Deficiency in Cannabis
Potassium deficiency in cannabis shows up first on the older, lower leaves: the leaf edges and tips turn yellow, then brown and crispy, while the …