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Invasive shothole borers, Euwallacea fornicatus entrance/exit hole in a Sycamore tree with tip of medium ball-point pen for scale

Mottled grey and brown wood with small round holes in it. The holes are approximately the size of the tip of the ball-point pen shown. Irvine, Orange County Credit: Monica Dimson, UCCE Orange County — Credit: Monica Dimson, UCCE Orange County

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