Invasive Species

Help increase public awareness of invasive species and encourage participation in the ongoing fight against invasive species by celebrating California Invasive Species Action Week (CISAW) June 1- 9, 2024.

The emerald ash borer (EAB) may be beautiful, but it is the most destructive forest pest ever seen in North America. Hundreds of millions of ash trees across 36 states and 5 Canadian provinces have been killed by this invasive insect.

Below are answers to UC IPM's 2024 insect Easter egg hunt! Click on the name of each insect to learn more. A. Brown marmorated stink bug These eggs belong to the brown marmorated stink bug (BMSB) a pest of many types of plants and occasional indoor nuisance.

The invasive pest spotlight focuses on emerging or potential invasive pests in California. In this issue we are covering West Nile virus. West Nile virus disease was first reported in California in 2003 and has become the most common and serious vector-borne disease in California.

It's time for UC IPM's annual insect Easter egg hunt! Can you guess which insects laid the eggs pictured below? Some may be pests, while others may be beneficial. Leave a comment on this blog post with your guesses, or on our Facebook and Instagram posts. Answers will be posted on Monday, April 1st.

The invasive pest spotlight focuses on emerging or potential invasive pests in California. In this issue we are covering the Oriental fruit fly. The Oriental fruit fly (OFF) is an invasive pest that attacks over 230 crops including citrus and other fruits, nuts, vegetables, and berries.

Seven invasive fruit fly quarantines are in place throughout California. If you live within one of these quarantine zones, fruits and vegetables should not be moved off the property they were grown on.

Subterranean termites (Family Rhinotermitidae) are considered the most serious wood-destroying pests in the world, causing an estimated $32 billion in global economic impact each year. California is home to both native and introduced subterranean termite species (Figure 1).

Residents in multiple Southern California and Northern California counties should not move homegrown fruits and vegetables from their properties to help contain several species of fruit fly that can destroy crops and impact the livelihoods of local farmers.

Eucalypt trees have become abundant in the California landscape, but so have the many invasive eucalypt pests that have arrived in California in the last couple decades.