Posts Tagged: fusarium

Invasive Shothole Borers Threaten California’s Urban Forests

When tiny tree-killing beetles first arrived in Southern California several years ago and began...

Fig 1 Adult female of Polyhagous shot hole borer

Fig 2 Beetle entry hole on an avocado branch

Fig 3 a close up picture of broken branch of red willow tree in OC parks

Invasive Spotlight: Shot Hole Borers

Small beetles are causing big problems in Southern California. Two closely related species, the...

Managing Invasive Shot Hole Borers in Southern California

[Originally published in the Fall 2018 issue of the Green Bulletin. Modified slightly from...

Invasive Shot Hole Borers Threatening Trees in Southern California

[From the December 2016 issue of the UC IPM Green Bulletin] The Polyphagous shot hole borer (PSHB)...

Phytophthora tentaculata: A New Exotic and Invasive Disease

[From the December 2016 issue of the UC IPM Green Bulletin] A new plant pathogen in the genus...

Read more