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Ambrosia Beetles Are Behind Those Tubes

Q: These things like spaghetti pasta were sticking out of our tree that suddenly died. They crumbled when I touched them. Did they attack the tree and kill it? A: These are sawdust tubes pushed out by ambrosia beetles as they bore…

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Pine Trees: Browning Foliage and Pine Cones – Featured Video

Moving into the fall season, you may see some of your pine trees turning partially brown.  This is generally a natural occurrence. Learn more about pines and other trees in the fall/winter season at our FAQ page.

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Why is My Tree (Or Shrub or Flower) Dying? Abiotic Problems Could be the Cause

Professionals in the landscape and greenhouse industry, trained horticulturists, and Master Gardeners often use the term “abiotic disorder” when diagnosing a plant problem. To the layman, this can be very confusing. To add to the confusion, signs and symptoms you…

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Japanese Maples in Maryland Landscapes: Plant Location & Care Are Keys to Success

The group of small ornamental shade trees lumped under the name Japanese maples, Acer palmatum and A. japonicum, and their many hybrids, are very popular with gardeners and plant enthusiasts. Most of the questions we receive about problems with Japanese…

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Q&A:  Why didn’t Japanese maples lose their leaves last fall?

Q:  Most of my Japanese maples are still full of dead leaves. They never exfoliated in the fall to leave bare branches. Will this affect new growth in the spring? Should I just let them be? A: We have received…

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Featured Video: Mushrooms and Trees’ Symbiotic Relationship

David Clement, Ph.D. Extension Specialist, Plant Pathology, explains how fungi grow and feed on tree roots under the ground and sprout above ground as mushrooms. Visit the Home & Garden Information Center website to learn more about Wood Rots and…

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What’s Wrong with My Blue Spruce Tree?

Dr. Dave Clement, University of Maryland Extension Plant Pathologist, explains two common diseases of this popular evergreen tree.  Colorado blue spruce trees, although not native or adapted to Maryland, are commonly planted in landscapes for their attractive color and shape….

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