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By Manjul Dutt, Sheetal Ramekar and Gary England The grapefruit was created by chance from a cross between a pummelo and a sweet orange. It was first discovered in Barbados in the 18th century. All the commercially sold grapefruits today trace their roots back to the Duncan variety of grapefruit.

The University of California Statewide IPM Program presents the UC IPM Green Bulletin.

Agricultural officials recently expanded the areas in California quarantined for citrus greening disease [also known as huanglongbing (HLB)], which is spread by Asian citrus psyllids. The quarantined area in Orange and Riverside counties was increased by a total of approximately 31 square miles.

Fires are common and we usually just think of the effects it has on plants and structures, but what impact can it have on soil. I recently came across a guide book from the US Forest Service that addresses how to evaluate fire impact on soil. Following wildfires in the United States, the U.S.

The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA/APHIS) and the California Department of Food and Agriculture (CDFA) expanded the Mediterranean fruit fly (Medfly) quarantine in Alameda and Santa Clara counties in California twice in October.