Borers Are Trying To Infest Your Fall Trees

Tree Borers In FallAs summer ends and autumn starts to bring colder weather, trees begin to get numerous visitors looking for shelter. Some visitors are harmless and leave when spring emerges; however, some never leave and will feed on your tree until it is destroyed.

Unfortunately, wood boring insects are a part of the latter group.  Borers are one of the most destructive pests that plague a wide variety of tree species. The most common borers in the DC Metro area include the Asian Longhorned Beetle, Bronze Birch Borer, Emerald Ash Borer, and Ambrosia Beetle

How Do Borers Hurt My Tree?

Borers kill trees from the inside out. They do this by feeding on the vascular tissue, which reduces the tree’s ability to transfer energy and nutrients. In late summer, adult borers lay eggs on the bark of trees. When these eggs hatch they enter the tree through the bark and feed on its tissue all winter long. Once spring arrives borer larvae mature into adults, exit the tree, and start the process all over again. Since it can be hard to get borers to leave a tree the best plan of action is a preventative one.

“S”-Shaped Galleries From Emerald Ash Borer in an Ash Tree

“S”-Shaped Galleries where Emerald Ash Borers have eaten through the vascular tissue of an Ash Tree

Why Is This Time Of Year Important?

At this time of year, borers are looking for susceptible trees to enter and spend their winter in. By making your tree unappealing to borers in late summer and early fall, borers will find other trees to enter and feed on which stops the borer infestation before it begins.

If you wait until the signs of borers show up in the spring, the damage will already have been done.

Susceptible Trees:

  • Hardwoods, especially oaks, maples, beech, and ash.
  • Trees suffering from disease or other insect infestations
  • Mature/Over-Mature trees
  • Trees facing environmental stressors such as extreme temperatures, drought, flooding, and soil compaction.

How Do I Keep My Tree From Getting A Borer Infestation?

The most important step to preventing borer infections is having a borer spray applied to your tree. However, borers are known as secondary invaders, so keeping your tree healthy overall can deter borer infestations. Your arborist may suggest overall health treatments such as tree pruning, a bio-stimulant treatment, and soil decompaction, as well as a borer spray to combat borers this September.

Book your consultation online today or call 703-573-3029

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Samantha Huff

Samantha Huff is the marketing coordinator at RTEC Treecare. She enjoys learning about the technical aspects of trees and the insects and diseases that prey on them. She hopes that these articles can help homeowners gain control of their tree and shrub maintenance by being aware of the signs and symptoms of unhealthy trees.

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