In California, invasive plants cause problems such as increasing wildfire risk, damaging ecosystems, and affecting recreation activities. Join us to learn about the impacts of invasive plants and ways you can help prevent the spread of invasive plants.About the Urban and Community IPM Webinar …
The Mediterranean Oak Borer (MOB) is an invasive ambrosia beetle that infests several species of white oaks in California: valley oak, blue oak, and Oregon oak. The beetle is spreading rapidly in Napa, Lake, Sonoma, and Sacramento Counties and has been detected in neighboring El Dorado, Yolo, and Mendocino…
Join the El Dorado County Master Gardeners to learn about weeds commonly found in the home landscape, their culture, and control strategies. Well also discuss highly aggressive non-native weeds which have been introduced into El Dorado County.
Tiny but destructive, the emerald ash borer (EAB) is an invasive beetle that has killed millions of ash trees across North America. In some cases, infested regions have lost nearly 100% of their ash trees to this pest. Though EAB has not yet been found in California, it was detected on the West Coast for the…
Tree-of-heaven, Ailanthus altissima, was originally from China and became a popular landscape shade tree in the 1800’s. However, its rapid growth, aggressive spread, and native habitat disruption have made it a global problem. Reproducing rapidly through dense root suckers and wind dispersal of its “winged”…
Bermuda buttercup (Oxalis pes-caprae), also called buttercup oxalis or sourgrass, might be a familiar sight in winter and spring, particularly to those who live in coastal regions or the Sacramento Valley. Some people enjoy seeing this plant’s cheerful yellow flowers pop up in their spring gardens, but for…
Join UC IPM for a free webinar on the invasive Mediterranean Oak Borer (MOB) and other important oak tree pests on April 10, 2025 from 6:00pm to 7:30pm. The Mediterranean Oak Borer (MOB) is an invasive ambrosia beetle that infests several species of white oaks in California: valley oak, blue oak,…
National Invasive Species Week (NISW) happens every year to raise awareness about the growing problem of invasive plants and animals in the United States.
From February 24 - 28, 2025, help increase public awareness of invasive species and join the fight against invasive species by participating in National Invasive Species Action Week (NISAW).
Recent rainfall throughout much of California has created puddles and stagnant water. With the temperature warming up in many parts of the state, this combination can create the perfect situation for mosquitoes to breed. We encourage you to drain after the rain to reduce mosquito-breeding sites.
