Ornamental Trees

Dogwood – Diseases

Nothing can panic a homeowner like the threat of disease to their prized dogwoods. Dogwood trees in Atlanta have had several problems this spring. Brown, distorted leaves and severe leaf drop are common complaints. Fortunately, the problems are probably not...

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Crapemyrtle – Which is the Right Way to Prune

There are many opinions on which is the “correct” way to prune a crapemyrtle. A landscape owner may want a smaller tree, more blooms, or less work….all of which demand a different kind of pruning. Dr. Gary Knox at the...

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Christmas Tree – Selecting

When the winter holidays approach, you want your tree to look its best. Here are my tips for choosing the best tree: 1. Choose a fresh tree. It is simple to say but hard to do! Most of the trees...

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Cherry – Bleeding

Ah, what a beautiful thing is the marriage of intelligent minds! In early June, 2002 I received three questions in one week asking about cherry trees that were oozing sap. Sensing an incipient problem, I queried my Extension Service colleagues...

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Categories of Tree Damage from Storms

Ice, snow and wind storms can cause extensive damage to trees. Snow and ice add tons of extra weight to individual trees. Stems and branches break, while some trees may be completely bent over. Storms may kill some trees, but...

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Bradford Pear – Pruning

I recently received a query that has been repeated over and over this spring. A gardener in Roswell asks for my advice on the proper pruning of her Bradford pear tree in order to avoid limbs breaking as it gets...

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Bleeding Cherry Tree – Gum on Bark

In the world of humans, bleeding is a serious and troubling thing. If something causes us to bleed we immediately take action because we understand that the loss of excessive amounts of blood can cause us great harm. Therefore, it’s...

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Black Walnut – Allelopathy

Black Walnut trees have a chemical known as juglone in their roots, husks, leaves and bark. Juglone inhibits the growth of many plants which may be growing in your garden or landscape. This inhibition of plant growth is called allelopathy....

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