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Keith Reagan

Powdery Mildew and Fungicides Part 3: Plant Breeding

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…

Powdery Mildew and Fungicides Part 2: Treatment Options

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…

Powdery Mildew and Fungicides: Part 1: Background

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…

Terpenoids, Trichomes & Cannabinoids Part 2: How they form

Part 2: How They Form Written by Mike Steffes – Quest Dehumidifiers Cannabinoid synthesis pathway As mentioned previously, cannabinoids are produced via the joining of…

Terpenoids, Trichomes & Cannabinoids Part 1: Where they are located

Part 1: Where they are located Written by Mike Steffes – Quest Dehumidifiers THC and other cannabinoids are produced in only one place on the…

Vapor Pressure Deficit and Indoor Growing Part 3: Different Stages of VPD

Part 3: Different Stages of VPD Written by Mike Steffes – Quest Dehumidifiers VPD Range Now that we’ve established the importance of transpiration and have…

Vapor Pressure Deficit and Indoor Growing Part 2: Why is VPD Important?

Part 2: Why is VPD Important? Written by Mike Steffes – Quest Dehumidifiers Why Vapor Pressure Deficit is Important Plants survive and grow using sunlight,…

Vapor Pressure Deficit and Indoor Growing Part 1: What is VPD?

Part 2: Why is VPD Important? Written by Mike Steffes – Quest Dehumidifiers Why is Vapor Pressure Deficit Important? Vapor Pressure Deficit, or VPD for…

One Way Not to Spray: Keep Dry

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

Basalt Mineral Wool: The Key to Perfect Irrigation in Your Grow Room

The Key to Perfect Irrigation in Your Grow Room Commercial growers use basalt (or basaltic) mineral wool in their hydroponic growrooms, and you should consider…

Avoid Powdery Mildew on Cannabis Creating a cleaner, high-quality cannabis

Date: June 13, 2016 Contact: Jake Miller, 608-268-5318, jake@lsb.com Editor’s note: Clif Tomasini, Quest Dehumidifier product manager, is available for phone interviews as well as…

Dissolved Oxygen for Better Growth: Part I: What Is It and Why Do Plants Need It?

Part I: What Is It and Why Do Plants Need It? There’s a lot to concentrate on if you’re to keep your plants healthy and…

Fluorescent grow room lights The Different Grow Room Lights and How You Use Them: Part IV: Fluorescent and LED Lights

Part IV: Fluorescent and LED Lights While HID lights are the heavy hitters in grow rooms when plants need the most light, both fluorescent and…

Lighted incandescent light bulb The Different Grow Room Lights and How You Use Them – Part III: High Pressure Sodium Lights

The Perfect “Red and Blue” Team. High Intensity Discharge (HID) lights are the most popular of the grow room lights used. There are two kinds:…

Metal Halide Grow Room Lights The Different Grow Room Lights and How You Use Them – Part II: Metal Halide Lights

Part II: Metal Halide Lights HID lights , or High Intensity Discharge lights , are among the most popular of the grow room lights. That’s…

The Different Grow Room Lights and How You Use Them- Part I: An Overview

Part I: An Overview Let there be Light In general, a grow room needs light, light, and more light. The indirect lighting many houseplants do…

Clif Tomasini and Quest unit Some state companies find opportunity in growing market for legal marijuana

By Rick Romell of the Journal Sentinel Jan. 3, 2016   The rapidly growing marijuana industry — legal to some degree in much of the…

Condensed water vapor on grass Water Vapor in Grow Rooms: Moisture, and How to Measure It Part III: Dew Point Temperature

Part III: Dew Point Temperature There are three ways to measure moisture in a grow. Relative humidity (%RH), grains per pound , and now, dew…

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

Part II: Grains per Pound (GPP) As we discussed last time, relative humidity (%RH) is a way to measure moisture in your grow room’s air.…

humidity condensing on a leaf Water Vapor in Grow Rooms: Moisture, and How to Measure It – Part I: Relative Humidity

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…