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This chapter documents the history of pea aphid (Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae)) outbreaks in the U.S. Pacific Northwest, with particular attention to the periodicity of outbreaks on field peas (Pisum sativum L.) in the Palouse region of eastern Washington over a 26 year period (1983–2008). In the Palouse region, grain legume crops are devastated by pea aphid feeding damage and...
Laboratory and glasshouse bioassays were developed in Australia and the US for evaluating wild pea (Pisum fulvum Sibth. & Sm.) accessions for resistance to pea weevil (Bruchus pisorum) (L.), one of the most important pests of cultivated pea (Pisum sativum L.) in Europe, India, North and South America and Australia. A field experiment and laboratory tests showed that flat and swollen P. sativum...
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