How to Spot Herbicide Use

Drift from backpack sprayer causes bald spots on lawn
San Leandro Public Library



Resistant “weeds” next to red-brown dead vegetation, typical of death by herbicide — often seen by Pacific Gas & Electric poles, East Bay Municipal Utility District manhole covers, East Bay Regional Park District picnic areas, etc.
Vacant lot, East 14th St., San Leandro

Blue herbicide dye marking — proposed for Oakland Wildfire Prevention District, already used by EBRPD.

Dead zone on 580 on way to Oakland Zoo
photo: Andy Pollyak