Trees are a valuable asset to our landscapes. Like the lawn, there are various maladies that can cause problems with trees. Two of those problems are Japanese Beetles and Emerald Ash Borer.
Adult Japanese Beetles feed on tree leaves during June and July. When they feed, they leave a skeletonized leaf behind (see above photo). This feeding can cause stress to the tree, although trees typically survive this feeding stress. In addition to the stress, feeding reduces the visual appearance of the tree. The primary control method is to treat the tree. After a treatment, a beetle will take a bite and then stop feeding. One of the worst things you can do to control Japanese Beetles is to purchase a pheromone bag trap. These traps attract significantly more beetles than they trap.
Emerald Ash Borer is an insect that feeds on Ash trees. Through feeding, it disrupts the water, nutrient and sugar movement in the tree. Ultimately this leads to the tree dying. Trees can take up to 2-3 years to show signs of an infestation. Upper most branches dying are the most tell tale sign of an infection. It is recommended that trees be treated for the Emerald Ash Borer. If a tree is already infested, treatments can limit further damage from occurring.
Here is a great site from the University of Minnesota Extension with more information about Emerald Ash Borer.
bioLawn offers treatments for both Japanese Beetles and Emerald Ash Borer. Contact us if you are interested in learning more.