Apple Scab

Apple scab is beginning to show on several of the crabapple and hawthorne trees on the course. Apple scab (Venturia inaequalis) is most severe when spring conditions are excessively cool and wet (Like the spring we had this year). The disease is most noticeable on leaves and fruit of susceptible plants.

Healthy Leaf

Infected Leaf

If leaf infections become severe enough, the leaves may wilt and fall from the tree.

Healthy crabapples at the front of the clubhouse.

The crabapples around the clubhouse were treated this spring to prevent this disease.

Crabapple that has dropped it's leaves left of 11 tees.

There are several crabapples between 2 fairway and 9 fairway, and around 15 green that are showing symptoms of the disease. Several of the hawthornes around 15 green, 14 tee, and 13 green are showing symptoms as well. We anticipate these trees to start dropping leaves in the next couple of weeks as a result. The trees will continue to survive from year to year. The main detriment of the disease is a reduction in fruit production, making this disease a large concern for the commercial fruit industry.