University of Maryland Extension


Thrips Management in Greenhouses (FS-762) Managing Thrips in a Greenhouse.
Greenhouse Growers Who Dare To Use Biological Control While attending the OFA meetings in Ohio in July 2013, I had the opportunity to hear three greenhouses growers talk about how they are adopting biological control at their operations. It was rather refreshing since we have been trying to get greenhouse growers to adopt more biological control since the mid 1990s.
Did you hear the story of a fungus meeting algae, and they took a “Lichen” to each other? It’s true. The blue-gray and green growth, often seen on the sides of trees and other places like rocks and fences are mutualistic symbiotic organisms collectively called “lichen” (pronounced “liken”). There is no need to fear these organisms as they very seldom to never cause any detriment to the trees they inhabit.
Grasshoppers: Life Cycle and Control Life CycleIn early September the weather has changed to hot and dry, at least for this week. Many weeds are drying up and grasshoppers are moving into container grown perennials and annuals. Some growers are reporting feeding damage on their plants in garden centers, nurseries and greenhouse operations growing plants outdoors.
Hard Decisions When Managing Ash Trees pdf Version Protect it or cut it down?
How Does the Maryland Lawn Fertilizer Law for Turfgrass Affect You? Back in 2001, farm operations including nurseries and greenhouses were required to develop nutrient management plans and run soil test before applying fertilizer in field situations.
Sycamore Anthracnose Return to What's the Cause? Sycamore Anthracnose
Alternatives to Garden Impatiens Because of Downy Mildew Disease Many greenhouse growers are deciding to not grow garden impatiens or significantly reduce their production due to the occurrence of downy mildewGarden impatiens have been a big favorite with gardeners for planting in shady areas in their yards.  Garden impatiens have been a major crop for greenhouse growers to sell retail to garden centers and wholesale to landscapers.  Unfortunately,
Using Banker Plants for Aphid Control in Greenhouses pdf versionBiological Control of Aphids – Succeeding in MarylandVegetable transplants are a big seller for greenhouse operations. With the recovering economy, customers are planting vegetable and herb gardens.
Brown Marmorated Stink Bug PEST ALERT: Brown Marmorated Stink BugSituation in 2012
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