Rangelands

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…

  Every drop counts, especially in California. That’s why May is officially recognized as Water Awareness Month, a time to reflect on the value of water in our lives, our landscapes, and our future.Why Water Awareness Month?Initiated in the early 1980s by the California Department of Water…

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”…

 Droughts in California: A Frequent ChallengeSubject to severe short and long-term drought conditions, California has experienced two consecutive multiyear droughts in the past decade (Figure 1). The drought of 2012–2016, was considered one of the most severe on record, with…

Los jardines de lluvia son depresiones del terreno transformadas, diseñadas para almacenar e infiltrar el escurrimiento pluvial proveniente de superficies impermeables cercanas dentro de entornos urbanos. Disponibles en una variedad de formas y tamaños, los jardines de lluvia representan una solución…

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…

UC scientists are working with growers in Tehama, Butte, Lake, Amador, Contra Costa, Stanislaus and Yolo counties to test a new way of measuring the irrigation needs of walnut trees. Shackel and team think this new method will allow growers to use less water by not irrigating early in the season, and trees…

Calibration might sound intimidating, but it’s critical for safe and effective herbicide application. Proper calibration ensures that the correct amount of pesticide is applied to an area while achieving the desired level of pest control. To support land managers and pesticide applicators, the UC Statewide…