Problem:A cannabis nitrogen deficiency makes older, lower leaves turn yellow and wilt. They will die off. The plant looks pale or lime-colored. The yellow leaves may also show brown spots. They become soft and fold in. Then, they turn crispy…
Cannabis Root Rot – Slimy, brown, twisted or unhealthy roots are caused by unwanted pathogens in your hydroponic tank! The marijuana plant on the left is healthy, and the plant on the right has root rot. The curled, drooping, unhealthy…
The term ‘leaf miner’ is a common name for a type of pest actually lives inside the tissue of the leaf. These bugs mine through the leaf eating the best parts, and leave a trail of damage behind. These long,…
Cannabis Plants With Root Problems Show Many Symptoms Example of extreme overwatering on an adult cannabis plant This seedling was being grown in pure perlite, which is not a suitable growing medium for cannabis, and as a result the roots…
Have you seen white areas on your leaves? Are your leaves cleaned with round spots of powder that appears like flour? If so, you’re probably handling White Powdery Mildew, likewise called White Powdery Mold or simply “WPM” to marijuana growers.…
Slugs or Snails Attacking Your Cannabis Plants? Get Rid of Them Quick! Ewwww slugs and snails are eating the leaves and buds of my cannabis plants!!!! Although not the most common cannabis pest, slugs and snails are unwelcome visitors when…
Problem: Leaves may become yellow in between the veins, with mottled brown spots on the affected leaves. These brown dead patches may spread and eventually kill the leaf. Leaves may also shred and fall apart. Overall growth of the marijuana…
Problem: The initial symptoms may appear similar to a nitrogen deficiency (yellowing of older, lower leaves). Leaves may become mottled or spotted. However, the tell-tale sign of a molybdenum deficiency is the leaves may start to display a unique orange,…
Problem: Your cannabis plant can only withstand a certain amount of light. After a certain point, your cannabis will start turning yellow or otherwise exhibit signs of stress on the leaves near the sources of light and/or heat. Light burn…
Many types of stink bugs can harm cannabis plants. They lay white egg patches that turn into small bugs. These bugs grow into stink bugs. I’ve never seen them myself but they harm many plants. They can damage flowers and…
How to Identify Grasshopper Damage (on Leaves and Stems) Grasshoppers (and sometimes locusts, which are basically just grasshoppers with wings) will happily eat your cannabis leaves, leaving holes, and live among the branches. They can also eat through stems, killing…
Issue: If your plant is sagging, then it’s normally an indication of either over or under-watering. Skip the over/under-watering of your cannabis plants and DIY your own cannabis hydroponics system. Marijuana Underwatering Signs If your soil or soilless medium looks…