Sidebar: Giardia also threatens drinking water supplies

Also in this issue:

Coriander feathery red-vein virus, a propagative plant rhabdovirus, and its transmission by the aphid Hyadaphis foeniculi Passerini

Scientists work with industry to safeguard food and water

Ranchers manage land to enhance watershed

UC scientists seek to ensure safe meat

San Francisco water district targets cattle

Research and reason can minimize foodborne and waterborne illnesses

Four weed management systems compared: Mulch plus herbicides effectively control vineyard weeds

Sheep grazing effectively controls weeds in seedling alfalfa

New whitefly-transmitted closterovirus identified in tomatoes

Intensive land preparation emits respirable dust

Packing-line modifications reduce pitting and bruising of sweet cherries

Ice creams and frozen yogurts vary widely in key nutrients