An Invasive Beetle Has Killed At Least 90,000 SoCal Trees: Can Indigenous Cultural Burns Help?

Goldspotted Oak Borer News

An Invasive Beetle Has Killed At Least 90,000 SoCal Trees: Can Indigenous Cultural Burns Help?
Beetle InfestationCultural Burns
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Around that time entomologists from the U.S. Forest Service identified the culprit — the goldspotted oak borer, an invasive beetle that likely hitched a ride on some firewood from Arizona to Southern California. Researchers suspect that could have happened around the early '90s. The tribe plans to use cultural burns once again in May, targeting the lower part of the tree, where goldspotted oak borer reproduction happens.

Female goldspotted oak borers lay their eggs in the cracks and crevices in tree bark from spring until August. When the eggs hatch, the larvae feed on the tissue just below the tree's bark, the cambium — eventually killing the tree through suffocation.By the fall, the larvae will tunnel further into the tree where they continue growing. Come May, the beetles will metamorphose and emerge hungry from oak trees. They’ll eat oak foliage and mate to start the whole process over again.

Kyre also recommended burning firewood in the areas where it was purchased and not transporting the logs elsewhere.

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