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Creator:: Klein, Matthew L.
Abstract:: Potato (Solanum tuberosum L.) is the fourth largest food crop in the world following rice (Oryza sativa L.), wheat (Triticum spp.), and maize (Zea mays subs. mays). Potatoes arrived in the United States in the early 1600s and over the following centuries, the crop was subsequently cultivated across the country...
Resource Type:: Masters Thesis
Full Text:: 2002). Aphid transmitted viruses Significant effort is made in the Columbia Basin to control

Creator:: Puls, Karl A.
Resource Type:: Masters Thesis
Full Text:: the early periods of these aphid life stages represent the greatest potential for biological control

Creator:: Buffam, Paul Edwin
Abstract:: The balsam woolly aphid (Adelges piceae (Ratz)), an European pest of conifers, was first discovered in the Pacific Northwest shortly after 1930. Control measures of a chemical, silvicultural, or biological nature have been proposed. However, present control methods are either too costly or do not result in satisfactory control of...
Resource Type:: Masters Thesis

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