Ongoing research

Native reproductive host Symptoms: staining, frass Other pests: UC IPM Resources: USDA Profile, Calflora Symptoms on native Mulefat.

Reproductive host Symptoms: gumming, staining Other pests: UC IPM Resources: Urban Forest Ecosystems Institute Profile Gumming symptoms on Kentia palm with a pen for scale.

Invasive beetle found along Zayante Creek identified as novel to West Coast by Staff Report, Press Banner, December 12, 2024 Invasive Beetle That Could Decimate Trees Detected in Wealthy Coastside California county Golden Gate Media, November 8, 2024 UC ANR Experts, Resources Guide Response to Shoth...

Reproductive host Symptoms: staining Other pests: UC IPM Resources: USDA Profile PSHB symptoms may be difficult to see on thick Engelmann oak bark.

Reproductive host Symptoms: staining Other pests: UC IPM Resources: USDA Profile Staining caused by PSHB on English oak.

Reproductive host Symptoms: staining Other pests: UC IPM Resources: Urban Forest Ecosystems Institute Profile Staining from PSHB activity on Evergreen maple.

Susceptible to Fusarium dieback Symptoms: gumming Other pests: UC IPM Resources: USDA Profile Koelreuteria species respond to PSHB attack by gumming.

Native reproductive host Symptoms: staining, frass Other pests: UC IPM Resources: Calflora, USDA Profile Symptoms on Goodding's black willow.

Reproductive host Symptoms: staining Other pests: UC IPM Resources: USDA Profile Staining from PSHB on Japanese maple.

Reproductive host Symptoms: staining Other pests: UC IPM Resources: USDA Profile PSHB symptoms on wisteria.