If you’re the owner of a birch tree in an area that lacks rain like Nevada or California, you’re probably already well-acquainted with the bronze birch borer beetle, whether you know it or not. They are a species of beetle that have already caused the demise of thousands of birch trees, often without the tree owners even knowing about it until it was too late. This species of beetle can infest a tree for years before the owners start to notice symptoms which is what it makes it so difficult to safe a tree that is already so close to the brink of death.

As always, prevention is the best way to deal with these bugs. Keep an eye on your tree, make sure they’re as healthy as they can possibly be. And not just because that is generally important, but also because it will lower the risk of infestation. The way in which the bronze birch borer beetles operate, is by nesting their larva into the callus tissue of the tree of which they feed.

A healthy birch will then be able to produce enough callus at a quick enough rate to kill off the larva. However, a sick or stressed tree won’t be able to which will put it at a higher risk of repeat attacks. This will eventually mess up the tree’s transport of nutrients and thus, kill its roots. And as we all know, a tree with dead roots is a dead tree.

To avoid all of this, you should plant your birch in cool and moist soil and in a spot where it will still be able to catch enough sunlight to flourish. Then, once every or twice a month, you should slowly deep water your tree so its soil will keep up a healthy level of moisture. Another good and important way to uphold this, is through mulching. Now, when it comes to fertilization, less is definitely more. Too much fertilization will lead to excess nitrogen which will boost succulent growth which in turn attracts bronze birch borer beetles like nothing else. And while we are on this topic: do not, fertilize when your tree is already showing symptoms of an infestation. It is best to talk with Tree Service in Bay Area CA, so that they can diagnose the symptoms of an infestation. These are:

• Dead or dying branches
• Thinning and yellowing leaves
• D-shaped exit holes that leak reddish sap
• Die-back in the upper part of the tree, making its way downwards
• Bulging in the bark where larvae are tunneling through

Not only will the tree service know what to do but it will help you have healthy trees on your property.


Anyone who really cares about their trees knows how hard it is to find a good tree trimmer. I’ve used both major name brands, and self employed tree trimmers, and have never been very satisfied, until now. ArborWorks trimmed my trees as carefully as I would have, if I knew how to climb trees!Don McIntyre, owner, responded within two days of my call, and his estimate was fair and thorough. He personally brought the foreman of the crew to my site to go over the job the evening before the crew would actually arrive. Don also visits the site as the work is performed, to make sure everything goes smoothly.If my trees could vocalize, they’d sing about the space created for light to enter the crown, and how good it feels to have the weight off the ends of the limbs. Even neighbors have come by to complement me on how good the trees look. “Best ever”.I only wish I had known about ArborWorks sooner. It took me 32 years to find them. I hope my trees will forgive me for taking so long…
Karen K. Mountain View, CA


Arborworks Inc. Diamond Certified