To protect oak trees and help prevent oak wilt, the Wisconsin Department of Natural.

Mar 30, Anyone with oak trees in their yards or on forested lands should avoid pruning beech tree in fall leaves cutting them from April through July to protect them from oak wilt. Sap-feeding beetle on diseased oak tree in.

Sap-feeding beetle on diseased oak tree in Sawyer County.

Dec 14, However, if you are going to prune oak trees, it’s important to do it in winter to prevent introduction of oak wilt” says Paul Cigan, a WDNR forest health specialist. The best period to prune oaks is between the months of October and March. In spring, stop pruning when daytime temperatures reach 50 degrees. This is because oak wilt - a fatal disease of oaks - is spread by beetles that feed Estimated Reading Time: 3 mins. Aug 13, Late fall/winter pruning is especially important for oak trees to help prevent spread of the fungus that causes oak wilt (see University of Wisconsin Garden Facts XHT).

Late spring and summer are usually not good times of year to prune because disease pathogens are present and wound closure is slower. Apr 03, To protect oak trees and help prevent oak wilt, the Wisconsin Department of Natural Resources advises people to avoid pruning oaks on their property from April through July. Spring and early summer pruning makes oak trees vulnerable to oak wilt, a fatal fungal disease that rapidly kills trees in the red oak group and weakens those in the white oak group.

By Don Kissinger, urban forester, Don.

Apr 15, These recommend harvesting only during the non-restricted period if your stand is in a county that has oak wilt or is within 6 miles of a county with oak wilt. Harvesting restricted periods are dependent on your location in the state and are: North Zone: April 15 to July 15 South Zone: April 1 to July Native oaks wisconsin pests oak wilt tree trimming and services in milwaukee and waukesha wisconsin the sun shines through oak trees at the uw madison arboretum photo jeff miller.

Toggle navigation. To Prevent Oak Wilt Wait Until After July To Prune Free Apg Wi Com. Oak trees are best trimmed in the winter between November and March. Oak trees are dormant in winter and are less likely to be negatively affected by pruning when in winter dormancy.

That being said, branches which are dead, damaged, or diseased should be Missing: wisconsin. Pruning is scheduled for late winter while trees are still dormant to avoid winter injury from exposed pruning cuts. We sterilize our tools before working and between each tree to prevent the spread of disease.

Pruning of edible and ornamental fruit trees should begin the third year after planting.