Invasive Shothole Borers

California Sycamore

Platanus racemosa

Native reproductive host

Symptoms: staining, frass

Other pests: California sycamore overview on UC IPM website

Resources: California sycamore profile on USDA website

Wet staining on California sycamore in response to PSHB attack. Source: Monica Dimson, UCCE

Dark staining around ISHB entry hole on California sycamore