This is, indeed, sun scald — the worst case I’ve seen for a while. Oaks are especially vulnerable since they have such thin bark. When they are moved from a nursery environment into a landscape where ...

Q: My dad helped me plant a couple of young apple trees in my backyard last weekend and so far, so good. After we finished I said the only thing I had left to do was paint the trunks white. He looked ...

With trees, as with elephants and in swimming, trunks are important. They’re part of trees’ beauty, strength, majesty, and mystique. We have things to discuss. Like people, trunks come in all shapes ...

A common myth associated with trees is the sap goes down in winter and comes up in spring. The fact is sap remains throughout a tree all year round. The flow of sap slows, even stops, during winter, ...

Last week I talked about winter desiccation injury on evergreen trees and shrubs. Another type of winter injury is sunscald or southwest injury on the trunks of deciduous trees. Sunscald occurs when ...

Answer: Last week, we addressed this question by learning about cold-hardiness and how to avoid drought stress in the dormant season by irrigating properly and using mulch. Another major way to ...

This year along the Front Range, we had one of the most beautiful displays of fall leaf color in a long time. The right combination of moisture when trees were leafing out in the spring along with ...

Dear Neil: We purchased a red oak early this summer. It is 13 feet tall and planted in good soil. We water it six days a week with about three gallons per day on the base and leaves. We’ve been told ...

Many young trees and even some older ones are susceptible to winter sun injury. This is referred to as southwest winter injury or simply sun scald. It is caused by repeated freezing and thawing of the ...

This year along the Front Range, we had one of the most beautiful displays of fall leaf color in long time. The right combination of moisture when trees were leafing out in the spring along with mild ...

Grass and vegetation against the trunk of a stone fruit tree provides a humid and secluded place for female borer moths to lay their eggs. Grass against a trunk also increases the likelihood of string ...