Submitted to: Annual Pacific Northwest Insect Management Conference
Publication Type: Other
Publication Acceptance Date: 1/1/2003
Publication Date: 1/14/2003
Citation: CLEMENT, S.L. PEA APHID, SPRING DRY PEA, AND THE PALOUSE. ANNUAL PACIFIC NORTHWEST INSECT MANAGEMENT CONFERENCE. 2003. Interpretive Summary:
Technical Abstract: This abstract updates inter-year variability of pea aphid occurrence in pea germplasm nurseries of the Western Regional Plant Introduction Station, and in commercial pea fields in the Palouse region of the Pacific Northwest. Pea aphid is a major pest of spring dry peas and insecticide sprays are used to control damaging populations. Thus, it is important to track this pest's occurrence so pest managers and farmers have time to make chemical control decisions. Outbreaks of this aphid have occurred every seven (1983 to 1990) and six (1990 to 1996) years in germplasm nurseries and Palouse production fields. Because 1996 was the last pea aphid outbreak year and last time widespread chemical control measures were required to control this pest in the Palouse, pest managers and farmers should be on the lookout for damaging pea aphid populations in their 2004 pea nurseries and fields.