My red oak tree developed spots on the leaves in late summer. Since then, many of the leaves have fallen off, and the tree looks dead. What can I do about this problem? — Maria Jackson, Evans… ...

Oak trees are focal points of many home landscapes, parks, and green spaces throughout Wisconsin. Several species are native ...

In this episode of ID That Tree, Purdue Extension forester Lenny Farlee introduces a native Indiana species found in dry sites in Northern and Southern Indiana, the scarlet oak. Identify this member ...

Oaks support hundreds of species of native insects, which feed, lay eggs and take shelter on and under their leaves. Scarlet oak (Quercus coccinea) grows best in full sun, reaching 50-70 feet tall ...

This proud champion of scarlet oaks (Quercus coccinea) of Frederick County lives at the fork of the pathways inside Mount Olivet Cemetery. Being the champion scarlet oak is saying something, ...

Q: What are these red fluffy balls that are ALL OVER my oak trees and raining down on my house and patio? Are they doing to hurt my trees? — Madonna from Canfield A: They are insects, but they ...

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 ...

A deadly new oak-tree disease can be prevented by pruning them in the dormant season (if needed) ... Red oaks have pointed leaf lobes while white oaks are rounded. USDA, George Weigel.