I have seen many palo verde trees impacted by the palo verde root borer: trunk and limbs turning golden brown, leaves drop. All these symptoms develop after the damage has been done. But this year I ran across something I have only ever described after the palo verde begins rapidly declining.
![pvbor-gb](https://3987e5.p3cdn1.secureserver.net/wp-content/uploads/2011/08/pvbor-gb.jpg)