Plant Health Care
Austrian Pine Disease: A Growing Concern in Commerce Township
| Jan 11, 2025
Diplodia Damage and New Growth
Austrian pines, once a popular landscaping choice in Commerce Township, are facing a serious threat from fungal diseases. Two primary culprits, Diplodia Tip Blight and Dothistroma Needle Blight, are causing significant damage to these majestic trees throughout the area.
Diplodia Tip Blight
This fungal disease, caused by Diplodia sapinea, primarily affects mature pines, especially those under environmental stress.
In Commerce Township, symptoms of Diplodia Tip Blight include:
• Stunted and brown new shoot growth
• Yellowing and browning of young needles
• Dead branch tips and cankers
Dothistroma Needle Blight
While less prevalent than Diplodia Tip Blight, this disease can still affect Austrian pines in Commerce Township. Look for:
• Yellow-tan spots on mature needles
• Reddish-brown bands on needles
• Premature needle drop
Management Strategies for Austrian Pine Diseases
For Commerce Township residents, calling Owen Tree Service can help protect Austrian pines:
• Regular inspections, especially in spring
• Pruning infected branches during dry weather
• Proper irrigation in the dry, summer months to reduce tree stress
• Mulching around the tree base to conserve soil moisture
• Professional fungicide treatments
For severely affected trees, removal may be necessary to prevent disease spread. When replacing Austrian pines, consider alternatives better suited to Commerce Township's climate and less susceptible to these diseases. Alternative evergreen trees to consider include concolor fir, Norway spruce, or eastern white pine. By calling Owen Tree Service to take proactive measures, Commerce Township residents can help preserve their landscape's beauty by protecting their Austrian pines from these devastating diseases.