Bud Rot on Cannabis: Stopping Botrytis with High Times

Quest Dehumidifier in a Grow Room

Bud rot is a common scourge of cannabis growers — but fortunately, it is avoidable. The problem is, all too often, hobbyist growers who graduate to commercial operations don’t understand the science of climate control until it’s too late. Bud rot sets in, they experience crop loss, and suddenly they’re looking for solutions. This article […]

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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 on edible plants. Rinsing with dilute hydrogen peroxide or applying potassium salts can protect against initial fungal infections and slow the spread of existing infection. Though hydrogen peroxide generally has […]

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Water Vapor in Grow Rooms: Moisture, and How to Measure It Part III: Dew Point Temperature

Condensed water vapor on grass

Relative humidity (%RH), grains per pound, and now, dew point temperature: All three are ways to measure moisture in the grow room.   What is dew point temperature?   Dew point temperature, or simply “dew point,” is the temperature at which the air becomes saturated with water vapor. It’s a balance: the water vapor in […]

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Water Vapor in Grow Rooms: Moisture, and How to Measure It – Part II: Grains per Pound (GPP)

Moisture droplets on leaf

As we discussed last time, relative humidity (%RH) is a way to measure moisture in your grow room’s air. Today, we’ll talk about “grains per pound” (gpp), which is a different way to measure the amount of moisture in the air.   What’s the difference between %RH and gpp?   While %RH measures the percentage […]

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

humidity condensing on a leaf

Plants need airborne moisture, and the water vapor (or humidity) in your grow room can determine how healthy your plants are. Healthy plants require proper humidity levels for each stage of growth.   What is humidity and how is it measured?   Humidity is the amount of water vapor present in the air. There are […]

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Dude Grows Podcast with Quest

Demystifying Dehumidification: A Chat with QUEST’s Clif Tomasini- Are you using a standard residential dehumidifier in your growroom? Beware; you’re setting yourself up for failure, according to QUEST Product Manager Clif Tomasini; Clif chats with Scotty Real of “Dude Grows Show” about the benefits of QUEST dehumidifiers vs. residential dehumidifiers for growroom use.   QUEST’s […]

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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% of cultivators across the country use some form of pesticide, and that Eagle 20 is one of the most commonly used, because it’s fantastic for killing mildew…” ‘Nothing else gets […]

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