USDA Agricultural Research Service
November 26, 2010
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A boost for catfish production:
An ARS fish biologist is exploring new ways to enhance farm-raised catfish production with a device he calls the "see-saw," a vertical-lift egg incubator designed to provide a better mix of dissolved oxygen to boost hatching rates of catfish eggs. (11/22)
http://www.ars.usda.gov/is/pr/2010/101122.htm
Shaking psyllids' family tree:
Asian citrus psyllid populations in North and South America are genetically distinct, according to research conducted by ARS scientists who are working with cooperators on ways to stop the spread of citrus greening disease transmitted by these insects. (11/23)
http://www.ars.usda.gov/is/pr/2010/101123.htm
Natural enemies wanted:
ARS researchers in France have teamed up with European colleagues to search for insects, mites, microbes or nematodes that could be used in a biologically based approach to controlling silverleaf nightshade, an invasive weed from the Americas that has spread to southern Europe, Africa, India, Australia and elsewhere. (11/24)
http://www.ars.usda.gov/is/pr/2010/101124.htm
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