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What are they, and how do they work? Take this short course to find out!
Learn about carbon's role in plant growth, and why it's such an important element for all living things.
Harrell’s EarthMAX is a unique soil additive designed to promote maximum soil and plant health in turf and ornamental programs.
Learn about nitrogen's role as a major nutrient from plant and soil expert Lynn Griffith!
With Dr. Jeff Higgins
Nematodes are unsegmented roundworms that live just about everywhere on Earth, but some varieties can cause problems for growers and turf managers.
Spider mites come in a variety of shapes and sizes, but they all have one thing in common: they’re bad news for plants.
Phytophthora is truly a plant destroyer. Learn how to prevent, identify and control this destructive disease.
In this course, Tropical Plant and Soil Expert Lynn Griffith takes a look at the damage caused by flea beetles, and explains what you can do to keep them away from your plants.
Learn about Magnesium and how it impacts plant health!
In this learning course, Lynn Griffith discusses the primary nutrient phosphorus and how it relates to horticulture.
Learn about how plants cope with high temperatures.
Plants aren't able to think the way we are, but that doesn't mean they're helpless.
Learn about water quality and how it impacts plants and soil.
This course describes how soluble salts impact fertilizers and plants.
Learn Techniques for Taking Soil & Tissue Samples for Testing!
Ever noticed that plants respond better to rain water than to irrigation water?
The following CEU-credited courses are available to myHarrell's customers.
Learn how Bicarbonates affect soil and plant health
Learn about boron's function in plants, and how to check for (and correct) deficiency and toxicity situations.
Turf & Landscape
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Discusses Harrell's Core Values
on January 15 by Matt Shook
in Golf, Specialty Agriculture, Turf & Landscape
The Florida Department of Agriculture and Consumer Services has a plan for pesticide disposal.
on January 14 by Tina Newberry
Harrell’s LLC announces the appointment of Scott Parker as their new Turf Sales Director for the Midwest Region.
Scott has extensive agronomic knowledge in the turfgrass industry. His...