University of Maryland Extension

Integrated Pest Management

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What Crops Up on Pansy?

What is pH and Why is it Important to Know it? When growing a pansy crop, remember to track the pH levels to avoid problems with iron. Keep the pH between 5.6 and 6.0 because above 6.0, iron deficiency (intervienal chlorosis on younger leaves) becomes a problem. If the pH level goes higher, iron...

Cicada Killer

The cicada killer is a beneficial wasp. The female can sting if she is provoked, but the females are so busy collecting cicadas that they really are not a threat to humans. Males are territorial and can be aggressive, but cannot sting so they are not a problem to humans. Sometimes, a larger number...

Diseases on Ornamental Plants

Boxwood Blight Impatiens Downy Mildew Alert Alternatives to garden impatiens More on Diseases... Chrysanthemum White Rust Sycamore Anthracnose Thousand Cankers

Emerald Ash Borer (EAB)

Emerald ash borer is a quarantine pest in Maryland counties west of the Chesapeake Bay (Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick, Garrett, Harford, Howard, Montgomery, Prince George’s, St. Mary’s, Washington counties and Baltimore City). The color of adult beetles...

Commercial Cut Flower Production

Highlights of Tours of Cut Flower Operations Types of Operations What Are Growers Growing? A Learning Experience Equipment Big and Small

Commercial Greenhouse Production: Ornamentals

Insect Problem: European pepper moth What crops up on... pansy? Biocontrol Control: Spider Mites Disease: Reducing Botrytis


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