Black Twig Borers
Community Contributed
By Glenn I. Teves, County Extension Agent, UH CTAHR
One of the obvious long-term impacts of drought on plants and trees is stress that can lead to death of branches or even the entire tree. Older trees are especially susceptible since they’re weaker due to age, and they lack vigor or juvenility. Insects will zero in on them and attack stems and eventually heartwood. Older wood is harder and dryer, and are especially attractive to insects, especially beetles. When you see symptoms such as dead branches, the damage had already occurred months earlier. One cue of this problem on Molokai is dying branches of Eucalyptus trees in the mountains.…












