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Low Substrate pH-Induced Micronutrient Toxicity of Geranium and Other Crops

Wed, Apr 1st, 2020, created by W. Garrett Owen


            Greenhouse growers have spent weeks producing crops for spring sales...


Warm, Wet Conditions + Full Plant Canopy: Perfect conditions for Sclerotinia

Wed, Mar 25th, 2020, created by Brian Whipker

Late spring is the time when plants have grown into a fullcanopy covering the pot...


Expecting the unexpected: Aphids and mites in geraniums

Thu, Mar 12th, 2020, created by Dan Gilrein

Years ago zonal geranium (Pelargonium hortorum) was among the few crops I rarely saw in the Entomology Diagnostic Lab, aside from occasional fungus gnat damage to roots or stems...


2020 National Floriculture Forum Focuses on Industry

Thu, Mar 5th, 2020, created by Joyce Latimer

The annual meeting of the National Floriculture Forum (NFF) washeld this past weekend as a joint meeting with the Board of Trustees of theAmerican Floral Endowment (AFE) in Charlotte, NC, with a major focus on howthose of us in Floriculture can better understand and meet the research and educationneeds of the industry as well as how we can better prepare our students to fillthose needs in the future...


Look for Early Symptoms and Signs of Plant Diseases

Wed, Feb 26th, 2020, created by Jean Williams-Woodward

Current weather patterns of cloudy, overcast days can lead to an increase in disease problems such as Botrytis blight, Pythium root rot, powdery mildew, and downy mildew...


Leaf Tipburn of Greenhouse Strawberries

Wed, Feb 19th, 2020, created by Neil Mattson
Acommon nutrient disorder in greenhouse strawberry production during the winteris leaf tipburn due to a calcium deficiency...

Bedding and Pot Plants Crop Walkers' Guide

Wed, Feb 12th, 2020, created by Brian Whipker
The British AHDB Horticulture group has made available as a free download their Bedding and Pot Plants Crop Walkers' Guide...

Fire Up the Injector -- It's Calibration Time!

Thu, Feb 6th, 2020, created by Nick Flax
As we get closer to the beginning of bedding plant season, growers all over are dusting off their sprayers, checking heaters, and performing early-season maintenance on different systems and pieces of equipment in their greenhouse operations...

Interpreting Water Quality Tests

Wed, Jan 29th, 2020, created by Rosa Raudales
Testing the quality of irrigation water is an important step to develop nutrient programs and to manage other water-related issues like clogging...

2020 Spring and Summer Color Palette

Thu, Jan 16th, 2020, created by W. Garrett Owen
Blue. Bleu. Blau. Azul. In any language, we associate the primary color blue with the sky and ocean, and to a lesser extent –bedding plants...

The Challenges of Managing Pests and Diseases in Retail Settings

Wed, May 22nd, 2019, created by Nick Flax
Greenhouse growers work tirelessly each year to produce high-quality plants for spring sales. Of all of the different factors involved in growing bedding plants, pest and disease management is one of the most important...

Promoting Pollinator Plants at Retail

Tue, May 14th, 2019, created by Beth Scheckelhoff

Now that the rain has finally subsided somewhat across the Midwest – garden centers are experiencing a flood of customers excitedly itching to get out and garden!  Whether you are a wholesale grower, a retail provider, or both – now is a great time to get out and see what is going on in the garden centers around you...


New Options for Aphid Management

Thu, May 2nd, 2019, created by Dan Gilrein

We’re employing beneficial insects and mites more than ever, but somehow the suggestion to sell aphid-infested plants as ‘ladybug-ready’ hasn’t been widely embraced...


Polystyrene Foam Aggregates in Greenhouse Substrates

Wed, Apr 24th, 2019, created by W. Garrett Owen
Greenhouse soilless substrates are formulated from various components and amendments. Traditional greenhouse soilless substrate components include peat moss, aged bark, perlite, and/or vermiculite...

Spring is in Full Swing

Thu, Apr 11th, 2019, created by Heidi Linberg
Spring is in full swing at the greenhouses in Michigan. Easter lily growers wrapped up moving lilies to coolers or shipping them late last week...