John

Unless youÂre licensed to purchase commercial pesticides, you will not be able to obtain a product that will kill anything you canÂt see that is hiding in the wood or under the bark. That means if you can see it, you kill it. All you really need are tweezers or fingers. Good luck with that.

If you are able to obtain something that does the job, be prepared to wear gloves every time you work on your trees for a while. Those types of chemicals are active for a long time. Studies have found residue of certain ones still in the soil under the trees twenty years after they were used. A better way to put it is that these chemicals were never meant to be used on something you handle on a regular basis. They were designed for fruit tree and orchard use.

Most of the things IÂve read imply that most borers and beetles attack weak trees. If all of your trees are under attack, it might raise other issues.

randy

John

Borers rarely attack trees with no exposed deadwood.They also aren't overly aggressive. They also rarely spread from healthy tree to healthy tree--no I'm not saying your trees are unhealthy. I'm saying that this is probably not a regular borer. It's something else.

At the very least, I would quarantine affected trees underneath plastic screening or in some other area of the yard away from unaffected trees.

An attack that kills or affects so many trees so quickly is highly unnusual for a borer. You most likely have either some kind of beetle infestation (probably related to the wild trees around) or some other problems in your trees.

Sprays are pretty ineffective, as mentioned, against such insects that live underneath bark. They require physical contact, i.e. digging around in their holes with a piece of wire to squish them.

I'd also inquire with the local agricultural office to see if this insect is causing other problems. If it's as voracious and aggressive as it is in your collection in the wild, it will either be of interest, or already known to the ag guys. They might also be able to tell you the proper way to kill it.

thank you mark i took a small drill bit went in every hole then with q tip put cygon systamatic on all holes seams to be helping i can hope john