Marijuana Plant Symptom Checker

Robert Bergman

Aug 18, 2022 — 4 min read

Symptoms of marijuana plant problems

This symptom checker will help you to quickly identify marijuana plant problems and easily diagnose sick marijuana plants!

Learn more about nutrients, diseases, stresses, pests and bugs.

Click on any picture for detailed information about a particular marijuana problem, deficiency or symptom and find out what’s wrong with your plant.

Let my free marijuana grow bible be your ultimate guide as you begin your marijuana journey.

Nutrient problems

Boron Deficiencies in Marijuana Plants — Boron deficiency

Copper Deficiencies in Marijuana Plants — Boron deficiency

Iron Deficiencies in Marijuana Plants — Iron deficiency

Magnesium Deficiencies in Marijuana Plants — Iron deficiency

Nitrogen Toxicity in Marijuana — Nitrogen toxicity

Molybdenum Deficiencies in Marijuana Plants — Nitrogen toxicity

Phosphorus Deficiencies in Marijuana Plants — Phosphorus deficiency

Potassium Deficiencies in Marijuana Plants — Phosphorus deficiency

Zinc Deficiencies in Marijuana Plants — Zinc deficiency

pH Fluctuations in Marijuana — Zinc deficiency

Diseases

Powdery Mildew on Marijuana — Powdery mildew

Pests and bugs

Caterpillars on Marijuana Plants — Caterpillars

Cutworms on Marijuana Plants — Caterpillars

Cats and Dogs on Marijuana Plants — Cats and dogs

Deer on Marijuana Plants — Cats and dogs

Gophers and Moles on Marijuana Plants — Gophers and moles

Leaf Miners on Marijuana Plants — Gophers and moles

Rats and Mice on Marijuana Plants — Rats and mice

Snails and Slugs on Marijuana Plants — Rats and mice

Whiteflies on Marijuana Plants — Thripsy

Environmental stresses

Humidity and Temperature in your Marijuana Grow Room — Heat stress

Airy and Loose Cannabis Buds — Airy and loose buds

Cannabis Clones wont Root — Airy and loose buds

Hermaphrodite Cannabis Plants — Hermaphrodites

Marijuana Seeds Wont Germinate — Hermaphrodites

Cannabis Plant Knocked Down — Knocked down plant

Hard or Soft Water for Marijuana Plants — Knocked down plant

Overwatering and Underwatering Cannabis Plants — Soil problems

A Look at the State of Cannabis Home Growing 2024

With 3 million home growers on the rise, a new movement in cannabis cultivation is flourishing in 2024. As acceptance spreads across the U.S., more individuals are turning to home growing not just for wellness, but as a powerful form of self-expression.

Two famous strains from Colors by Cultivar.

Colors By Cultivar Breeder Profile

With an approach to breeding that marries art and play, Jason Hutto brought Colors By Cultivar to life. Why be so serious in a world where you can have fun? Colors By Cultivar takes an experimental approach to known and favorite strains by mixing and matching these tried and tested genetics.

Frosted Cherry’Os: The Frostiest Autoflower You’ll Ever Grow

When Frosted Cherry’Os first dropped, it caught fire among the Speedrun community and quickly became a fan favorite.

A big main cola of the Frosted Cherry'Os marijuana plant

Speedrun Seeds: Pushing the Boundaries of Autoflowering Cannabis

The team at Speedrun Seeds is constantly redefining the limits of autoflowering cannabis. With impressive THC levels soaring to 30% and yields reaching up to 1 lb per plant, Speed Run’s genetics are making waves in the industry. If you don't recognize the name, you soon will!