California ground squirrels are common throughout much of California and may be found living near homes, structures, gardens, and landscapes where they can be a real nuisance. Ground squirrels' damaging habits can include:
- Eating vegetable seedlings and green grasses
- Damaging young shrubs, vines, and trees by gnawing on and girdling trunks
- Eating twigs and leaves
- Burrowing in lawns and landscapes and around tree roots
- Gnawing on plastic sprinkler heads and irrigation lines
Effective ground squirrel management methods vary during the year. In winter, manage populations before breeding seasons begins. Visit the UC IPM publication
[From the May 2017 issue of the UC IPM Green Bulletin]
The bronze bug (Thaumastocoris peregrinus) (Fig. 1), a serious and potentially damaging, sap-sucking insect pest of eucalypts, has very recently been detected in southern California. This pest is reported to destroy extensive areas of leaf tissue, often giving it a bronze tint, turning it yellow, red, and then brown to tan. Damage from the bronze bug eventually leads to leaf loss, canopy thinning, branch die back, and even tree death. A wide host range and its ability to survive in a variety of...
/span>[From the May 2017 issue of the UC IPM Retail Newsletter]
Keeping backyard chickens is becoming increasingly popular in residential areas around California. Your store may be selling pre-made chicken coops, feed, or other accessories, or you may be getting questions about rodent pests in chicken houses.
Chicken coops are sometimes associated with mild to serious rodent infestations. Rodents, such as rats and house mice, are not only predators of chickens and eggs, they can carry and transmit many diseases to both chickens and humans. For rodents, as well as most pests in and around the home and garden,...
/span>The black widow spider is known and feared by many people due to its venomous bite. However, in the past decade in California, a change in widow spider populations has occurred. A newer invasive spider called the brown widow may be displacing black widow spiders in some urban habitats.
Brown widow spiders are now common in urban areas of Los Angeles, Orange, San Diego, Riverside, San Diego and San Bernardino counties. People have also reported finding them in Ventura and Santa Barbara, and experts believe they may eventually be found in other areas of the state.
Residents may be relieved to learn that brown widow spiders are less likely to bite and if they do, the symptoms are more mild than a black widow...
It's National Invasive Species Week (February 27-March 3), which may prompt the question, “what exactly is an invasive species?” A truly invasive species is a non-native plant, animal or pathogen that causes or may cause economic problems, or threaten the environment or human health.
Why should this matter to you? Every 60 days, our state gains a new and potentially damaging invasive species. Because the things you do can directly impact the environment and economy of California, here are the top 10 ways:
- Learn about the invasive species that live in your region. Check with your county agricultural extension...