Pests in the Urban Landscape

Trees are long-lived resources that provide environmental, aesthetic, and community benefits. When a tree shows signs of decline, damage, or pest infestation, it is common to seek help from a tree care professional. While professional tree care is essential in many situations, the quality and appropriateness…

Blood-sucking ticks can spread bacteria and other germs when they bite, causing diseases like Lyme disease in people and pets. Fortunately, a few simple precautions can go a long way in reducing your exposure to ticks. Preventing Tick BitesTicks are efficient hitchhikers—they can easily latch on to your…

Earwigs, sometimes also called pincherbugs, can be damaging or just a nuisance around our homes and gardens. While these insect pests aren’t harmful to humans, they can cause quite the ruckus in home gardens. The most common species found in California is the European earwig, Forficula auricularia. This…

Yellow starthistle is a spiky, fast-growing, invasive weed in home landscapes, parks, rangelands, roadsides, and natural areas. It outcompetes other plants by growing in impenetrable stands and depleting soil moisture. It's also highly flammable which increases the risk of wildfires where it's growing. …

A few strands of thin, feathery, green plants growing under the dock didn’t catch anyone’s attention last spring. But those strands spread quickly and within months the lake’s calm waters were tangled in mats of the feathery Eurasian watermilfoil, an aggressive aquatic plant that grows quickly and clogs…