powdery mildew

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…

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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%…

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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…

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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

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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…

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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…

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Botrytis

The Dangers of Mold

Quest has compiled definitions provided by expert resources on molds, botrytis and other issues in cultivations. There is no practical way to eliminate all molds…

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