Is Your Ash Tree Dying? Spotting Emerald Ash Borer in Centre Hall

If you have an ash tree in Centre Hall and it is thinning out from the top down, the emerald ash borer is the likely reason. This small green beetle has spread across Pennsylvania and killed millions of ash trees. The open lots and farm edges around Penns Valley have a lot of ash, and once a tree is infested it almost never recovers. Catching it early gives you choices. Catching it late leaves you with a dead, brittle tree to remove.

First, is it even an ash tree?

Knowing what you have matters, because this beetle attacks ash and nothing else. Ash trees have a few features that are easy to check. The branches and buds grow directly across from each other, not staggered. The bark on a mature tree forms a tight diamond pattern. Each leaf is made of several leaflets along one stem. If your tree has those traits, it is likely an ash and worth watching.

• Branches and buds grow in matching pairs, across from each other
• Bark on older trees shows a woven diamond pattern
• Each leaf is made of five to nine leaflets on one stalk
• Seeds hang in flat, papery clusters in late summer

The signs of emerald ash borer

The beetle does its damage under the bark, where its larvae eat the layer the tree uses to move water and food. By the time you see symptoms up top, the tree has usually been infested for a couple of years. Look for these signs together, not just one on its own.

• The top of the canopy thinning or dying back first
• New sprouts shooting straight out of the trunk and lower limbs
• D-shaped exit holes, about the size of a pencil tip, in the bark
• Bark splitting to show squiggly tunnels carved underneath
• Heavy woodpecker activity stripping bark to get at the larvae

What you can do, and when it is too late

If your ash is still mostly healthy, with less than about a third of the canopy gone, a treatment may save it. That is a job for a professional, and it has to be repeated over the years. Once a tree has lost more than half its canopy, treatment rarely works, and the choice becomes when to remove it, not whether.

If you decide to remove it

If the tree is too far gone to save, planning the removal early pays off. A standing dead ash only gets more brittle and more expensive to handle the longer it waits, so it is not a job to push down the road. Many people choose to replace the ash with a different kind of tree, since planting another ash invites the same problem back. Good local choices that the borer does not attack include oak, maple, and serviceberry. If you have several ash trees on the property, it helps to look at them as a group and decide which to treat, which to remove now, and which to keep an eye on.

Why a dead ash should not wait

A dead ash is a different animal from most dead trees. The wood dries out and turns brittle fast, which makes the tree dangerous to climb and hard to predict on the way down. Branches snap with no warning. The longer a dead ash stands, the riskier, and often the costlier, the removal gets. Taking it down while there is still some sound wood is safer for everyone.

If you have an ash tree in Centre Hall that is thinning, sprouting low, or showing those D-shaped holes, get it looked at before it becomes a hazard. Tariq can tell you whether it is worth saving or time to come down. Reach out for a free estimate.