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New Southern California beetle killing oaks
Date:5/1/2009

r Barrett Lake, Mount Laguna, and the community of Descanso.

It was there they found evidence of beetle attacks in 67 percent of coast live oak, canyon live oak, and California black oak trees. They estimate the infestation has impacted 17,000 trees on the national forest's Descanso Ranger District.

According to the scientists, to prevent further spread more research is needed to determine the beetle's California distribution, seasonal active periods, host preferences, and natural enemies in its native Arizona and Mexico habitat. Further research will also demonstrate how it survives and spreads through oak firewood.


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Contact: Sherri Richardson Dodge
srichardsondodge@fs.fed.us
503-808-2137
US Forest Service, Pacific Southwest Research Station
Source:Eurekalert

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