Curling or Clawing Leaves

Root Rot

Root Rot

Cannabis Root Rot – Slimy, brown, twisted or unhealthy roots are caused by unwanted pathogens in your hydroponic tank! The…

Tobacco Mosaic Virus (TMV)

Tobacco Mosaic Virus (TMV)

Can Tobacco Mosaic Virus (TMV) spread to cannabis plants? Some growers believe mosaic virus can infect weed, yet actual evidence…

Under-watering

Under-watering

Issue: If your plant is sagging, then it’s normally an indication of either over or under-watering. Marijuana Underwatering Signs sagging…

Wind Burn

Wind Burn

Many indoor marijuana growers utilize fans to blow air around within the grow location. This develops a great breezy environment…

Planthoppers

Planthoppers

Melanoliarus planthopper on a marijuana leaf (Source: Whitney Cranshaw) Typically among the primary signs is a white fuzzy development that…

Potassium Deficiency

Potassium Deficiency

What Does a Marijuana Potassium Deficiency Appear Like? Leaf Issue / Signs: With a cannabis potassium deficiency, you’ll normally see…

Root Problems

Root Problems

Cannabis Plants With Root Problems Show Many Symptoms Cannabis may appear overwatered or droopy Curling or cupping of leaves Wilting…

Hemp Russet Mites

Hemp Russet Mites

Hemp russet mites are tiny bugs that attack cannabis plants. In fact, they are so small you can only see…

Light Burn or Light Stress

Light Burn or Light Stress

Problem: Your cannabis plant can only withstand a certain amount of light. After a certain point, your cannabis will start…

Nitrogen Toxicity

Nitrogen Toxicity

Problem: Dark green leaves, shiny leaves, clawing, weak stems, and overall slow growth. Marijuana leaves that are nitrogen toxic often…

Nutrient Burn

Nutrient Burn

Do Your Marijuana Leaves Have Nutrient Burn? Quick Summary: Nutrient burn or fertilizer burn is one of the most common…

Overwatering

Overwatering

Problem: After watering, your plants start drooping. Usually the droopyleaves will feel firm and appear curled down (the whole leaf…