Cockroaches, or roaches, are probably some of the least welcome insects people encounter in their homes, kitchens, offices, restaurants, or landscapes. Indoor cockroaches can create significant public health problems by contaminating food and producing allergens.

To help manage both indoor and outdoor cockroaches, UC Cooperative Extension IPM Advisor Andrew Sutherland and UC Riverside entomologists Dong-Hwan Choe and Michael Rust tackle the challenge of cockroach management in the newly revised Pest Notes: Cockroaches.

What's new in this version?

Since it's critical to first identify...

Mistletoe is a familiar sight of the season, often found wrapped in ribbon and hung for certain festivities this time of year. But did you know it is actually a parasitic plant that grows on a number of landscape trees in California?

There are two types of mistletoe in California. Broadleaf mistletoes attack certain broadleaf trees and some conifers while dwarf mistletoes attacks only conifers. Broadleaf mistletoes have green stems with thick, oval leaves. Dwarf mistletoes are smaller, with short stems and yellow scaly leaves.

Both types of mistletoe grow through tree bark and into the tree's tissue, living off the host tree. Healthy trees can typically tolerate a few mistletoe infections although individual branches may...

Holidays are a time for welcoming family and friends. But what if your loved ones accidentally bring along unwanted guests—bed bugs? These insects are excellent hitchhikers, hiding easily in luggage and sometimes on clothes. Bed bugs can be found in the finest hotels and accommodations such as dormitories, senior living facilities, and nursing homes, both in the United States and overseas. 

Whether you are hosting a dinner party or overnight guests, below are a few tips to prepare your home for welcoming visitors and deter unwanted ones.

Make It Easy to Monitor for Bed Bugs

• Clean your space and reduce clutter to minimize hiding places and make it easier to inspect for bed...

Tis the season for holiday travel. As you make reservations for rental accommodations to visit family and friends, we wanted to share a few suggestions to help you avoid bringing bed bugs home with you. Regardless of what type of lodging you choose-- hotel, motel, cabin, or other type of rental-- no place is immune to bed bug introductions or infestations.

We don't wish to alarm you, but we do want to point out that bed bug infestations are on the rise in the United States. Take precautions to save yourself from later issues and costs in case bed bugs do find their way into your home.

When settling into your room

• Before plopping your luggage down on the bed, couch, or floor, we...