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Message
Cypress tree hit with beetles
Posted on 12/13/18 at 5:50 pm
Posted on 12/13/18 at 5:50 pm
I have a group of four cypress trees in my front yard. The bases are about two feet in diameter. They all look healthy.
Last winter or early spring, I lost two limbs from the upper portion. The limbs being about 3 inches in diameter. I thought it was a wind storm that broke them.
But, I have lost about another four over the last six months. I was checking them out this afternoon and discovered some borers. I suspect they are weakening the wood and causing them to snap off. The bugs are very small and black.
Cypresses are typically pretty disease and pest free. So this is surprising.
Have any of you had this problem?
Last winter or early spring, I lost two limbs from the upper portion. The limbs being about 3 inches in diameter. I thought it was a wind storm that broke them.
But, I have lost about another four over the last six months. I was checking them out this afternoon and discovered some borers. I suspect they are weakening the wood and causing them to snap off. The bugs are very small and black.
Cypresses are typically pretty disease and pest free. So this is surprising.
Have any of you had this problem?
This post was edited on 12/13/18 at 5:51 pm
1
Posted on 12/14/18 at 2:29 pm to ItzMe1972
Can't help you with cypress, but I got hit hard with beetles this year in longleaf. Foresters that I've talked to were surprised because LL isn't as susceptible to beetles.
You need to spray your trees 10' to 15' height with bifen or pymetherin (bigen xts is oil based - better for outdoor use.) When the beetles move to a tree, they'll eat through the bark to get to the cambium layer beneath the bark. Same for leaving a tree. They hit that chemical they'll get smoked.
You will probably be safe to wait until later before temps start to climb, but temps are so jabber-wocky it would be worth spraying a few times in the winter. Pretty cheap preventative compared to cutting trees down.
You need to spray your trees 10' to 15' height with bifen or pymetherin (bigen xts is oil based - better for outdoor use.) When the beetles move to a tree, they'll eat through the bark to get to the cambium layer beneath the bark. Same for leaving a tree. They hit that chemical they'll get smoked.
You will probably be safe to wait until later before temps start to climb, but temps are so jabber-wocky it would be worth spraying a few times in the winter. Pretty cheap preventative compared to cutting trees down.
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