- Author: Rachael Freeman Long
- Author: Morgan Doran
In touring the back roads of California’s great Central Valley during wintertime, you may be surprised to come upon hundreds of sheep grazing alfalfa fields. The sheep are penned in by electric fences and graze the fields to near bare soil. Look closely and you may also see some Great Pyrenees dogs, used to guard the livestock from coyotes and other predators. The dogs blend in well with the sheep and it’s often fun to try to spot them in the mob.
You may wonder about this practice of ‘sheeping off’ or grazing alfalfa fields, as sheep are most associated with rangelands in the coastal foothills or the Sierras. Basque sheepherders have historically managed sheep grazing in the Sierra Nevada mountains,...
- Author: Tunyalee A. Martin
- Author: Jodi Azulai
- Author: Romy Basler
Got pests and want to use integrated pest management? Use a year-round IPM program developed by the UC Statewide IPM Program. If you’re not familiar with what a year-round IPM program is, think of it as a checklist for the agricultural pest management activities you should be doing throughout the season. You can take the new video tour "Using Year-Round IPM Programs" to explore the benefits and uses of IPM in field, orchard and vineyard crops. If you are managing pests in cole crops or
- Author: Ann King Filmer
Releasing aquarium fish into local waterways — or down the toilet — can damage aquatic ecosystems in a number of ways. The fish themselves can become an invasive species, they can disrupt habitats for other fish and aquatic species, and they may introduce secondary problems such as harmful pathogens or other aquarium species (seaweed, snails) into the waterways.
At least 13 of the 102 aquarium species that are imported into California have been introduced into California marine waters, according to a recent report by Susan Williams, professor in the...
- Author: Suanne Klahorst
Dan Morain’s opinion piece on California Technical Bulletin 117 in the Sacramento Bee last Sunday has most of the facts we need to learn about our toxic couches. Drafted in the 1970s to mandate the fire protection for household furnishings, the bulletin was intended to save lives. That was in a naïve era, before methods could measure fire...
- Author: Jeannette E. Warnert
Anaheim boasted a thriving wine industry in the late 1800s, before an unnamed affliction killed 40,000 acres of the grapevines and put 50 wineries out of business. The problem was later found to have been Pierce’s disease of grapevines. Would Anaheim be wine country today if it weren’t for Pierce’s disease? Probably not, but the sad fate of this Southern California wine industry underscores the importance of controlling the disease and the insects that spread it in California’s thriving grape growing regions.
The bacterium that causes Pierce’s disease has always existed in California, affecting a wide variety of plants, from oleanders to almonds. But the problem shot to prominence in the 1990s with...