Powdery Mildew

Powdery mildew is a threat to your yields and the quality of your cannabis crop. The good news—it is an avoidable fungal disease. Learn how to combat powdery mildew and protect your crop.

Vibrant green seedlings with glossy leaves growing in black plastic trays filled with soil.

Q&A: Avoiding Powdery Mildew Before it Strikes

To start off, can you tell us what powdery mildew is? Answer: It’s actually a fungal disease, which means it’s spread by spores. When it’s…

Read the article
Delicate pink flower buds surrounded by green leaves on a slender branch, set against a dark background.

Powdery Mildew and Fungicides Part 3: Plant Breeding

Plant Breeding as a Strategy Fungal infection resistance in any particular strain of plant can range from immunity (no infection at all) to resistant (some…

Read the article
Close-up of a green leaf surface covered with white, fluffy fungal growths, creating a textured pattern.

Powdery Mildew and Fungicides Part 2: Treatment Options

Treatment Options Inorganic: Simple chemicals are often an effective and efficient method to prevent and manage fungal infections. Some chemical treatments are safe to use…

Read the article
Green leaves covered with a white powdery mildew, surrounded by other foliage in a garden setting.

Powdery Mildew and Fungicides: Part 1: Background

the basics Powdery mildew is a common fungal disease of angiosperms (basically, any plant but conifers). The growing fungus looks grayish white and powdery. It…

Read the article
A man in a light blue shirt stands beside a white industrial machine labeled "QUEST" in a busy warehouse setting.

One Way Not to Spray: Keep Dry

Posted by Cannabis Product News – Solutions for a Growing Industry MADISON, Wis. – A long-time partner of the cannabis industry is looking to dry…

Read the article
humidity condensing on a leaf

Water Vapor in Grow Rooms: Moisture, and How to Measure It – Part I: Relative Humidity

Plants need airborne moisture. In addition, the water vapor (or humidity) in your grow room can determine how healthy your plants are. Healthy plants require…

Read the article
Quest 205 Dual humidity control device logo with a headline about pesticide debate over Colorado's cash crop.

Control Humidity to Best Fight Powdery Mildew

April 23, 2015 Confusion Over Pesticide Rules Presents Conundrum for Colorado Growers “John Andrle, the owner of Denver rec shop L’Eagle Services, estimated that 95%…

Read the article
Quest 110 Dual dehumidifier mounted in a warehouse, with reflective panels and lighting fixtures surrounding it.

For Robust Plant Growth Maintain Proper Humidity Levels

To grow properly, plants need proper humidity, temperature, and light levels. If plants get too much or too little of these elements, the resulting stress…

Read the article
Close-up of a green leaf covered in tiny, white, thread-like structures and droplets of moisture.

The Scourge of Powdery Mildew: Prevention Is Best

Once powdery mildew develops, there’s always a chance that traces of it will remain in your harvest — even if you treat and try to…

Read the article
Close-up of a green cabbage leaf showing texture, veins, and a light dusting of powdery mildew.

The Scourge of Powdery Mildew: How Do You Treat It Once It’s Occurred?

POWERFUL & EFFICIENT COMMERCIAL DEHUMIDIFIERS FOR THE CANNABIS INDUSTRY

Read the article
Close-up of a green leaf covered in tiny, white, thread-like structures and droplets of moisture.

The Scourge of Powdery Mildew: An Overview

What’s that powdery white stuff that’s suddenly appeared on your plants? Although it may look benign, it’s actually a fungal disease called “powdery mildew.” What…

Read the article
Two bright red apples hanging from a tree branch, surrounded by green leaves.

Look For Powdery Mildew

Some powdery mildew fungi, especially those on rose, apple, and cherry are favored by high humidities. Overcrowding and shading will keep plants cool and promote…

Read the article

To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.