Purdue Landscape Report: Each spring the PPDL receives several samples of oak trees showing curled, twisted, stunted and/or generally ratty looking leaves.When there are holes in the leaves or leaf ...

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 ...

Oak trees have been around for more than 50 million years, with individual trees easily living 1,000 years. One of the oldest oak trees in the U.S. is believed to be at least 2,624 years old. The ...

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.

Figure 1: Oak leaf with irregularly shaped Tubakia leaf spots and veinal necrosis. Leaf spots appear in mid to late summer (July –August) as small circular to irregular tan, red-brown, to dark brown ...

My red oak has shed its leaves very early (starting early October) each of the past two years. The arborist I hired didn’t seem concerned. ... They arrive by mid-summer, ...

Poison oak may have more than three leaves, and depending on the season, species and local environment, plants can vary. Poison oak, either Pacific or Atlantic, is a native plant in the United ...

The maples turn a pretty red color, but the red oak leaves generally turn brown and fall to the ground. However, this year seems different. Not only are the maple trees showing… ...