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     The emerald ash borer (EAB), Agrilus planipennis, is an exotic insect pest from Asia. The flattened, creamy white larval stage feeds below the bark and cuts off the living, water and nutrient conducting vessels causing tree death. Adults are small elongated oval beetles that are metallic green in color. This insect colonizes the top of ash trees (Fraxinus species) first, then moves down the tree.

     As of 2014 the entire state of Iowa has been placed under quaranteen by the Iowa department of agriculture and land stewardship to slow the destruction of this pest. To the right is a map of confirmed infestation loacations within Iowa and sugested treatment areas.

      

Symptoms

  • Leaf discoloration

  • Isolated dead branches in crown of tree

  • Dark brown streaks in sapwood of infected branches

Treatment

  • Fungicide tree injection (Propiconazole)

Symptoms

  • Browning of needles

  • Needles drop early

  • Damage concentrated around base of tree

Treatment

  • Foliar application of fungicide

Symptoms

  • Brown or olive green spots on leaves

  • Leaves turn yellow and drop prematurely

  • Loss of leaves during early summer

Treatment

  • Fungicide tree injection

Emerald Ash Borer Treatment

Tree Injections

Insects and disease can lead to damage or death of trees on your property. Property owners can incur thousands of dollars in cost for tree removal/replacement, or tens of thousands of dollars if a damaged tree falls onto a home or building.  At MaxTurf we use the Arborjet tree injection delivery system to administer fungicides or insecticides to infected/at risk trees. The Arborjet system injects a precise dose directly into the vascular system of the tree avoiding the need to add chemicals to the ground or air through soil drenching or foliar spraying. The Arborjet system is proven as an effective application method by university studies. Read below to learn more about the most common treatments administered.

Additional Information/Resources

ISU EAB Page - DNR EAB Page - Arborjet EAB Treatment

Oak Wilt

Additional Information/Resources

ISU Oak Wilt Page

Additional Information/Resources

ISU Needle Blight Page

Dothistroma Needle Blight
Apple Scab

Additional Information/Resources

ISU Needle Blight Page