How do I get rid of Palo Verde Root Borers

chandlergardnerAugust 5, 2007

Some of my Palo Verde trees are being attacked by Palo Verde Root Borers. They have caused several of the branchs to dye back from the tips. Is there any way to get rid of these ugly pest. I'm certain that it is the Root Borer causing the damage as I have seen the tell-tell signs of the holes left in the ground from the emerging adult beatles, and I have seen the beatles in the yard too.

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Hi Chandlergardner,

Palo Verde beetles emerge during our summer monsoon season and can be a frightening sight on warm evenings. The larvae, which are a huge 3" whiteish grub, live inside the roots of trees for several years before maturing into the black adult beetle. The holes they leave in the ground are about the size of a quarter in diameter. They seem especially attracted to the imported Mexican Palo Verde tree, but will munch on nearly any non-native tree or shrub species including Mulberry and Ash.

Another insect that active during the monsoon season is the cicada. They produces the loud buzzing you hear in trees this time of year leave 1 inch diameter holes in the ground. Female cicadas lay their eggs on branch tips which causes die-back.

The best management for these insects is to keep your trees as healthy as possible. Deep, infrequent watering and minimal pruning will enable plants to resist attack by these pests.

Here is a link that might be useful: Palo Verde Borer Beetle

    Bookmark   August 8, 2007 at 12:04PM
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you may be able to control them with neemseak nematodes
go to
it is in tucson az

    Bookmark   August 7, 2012 at 4:19PM
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