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Browsing by Author "Riedl, Helmut"
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Oregon State University. Extension Service; Castagnoli, S.; Riedl, Helmut; Spotts, Robert Allen, 1945-; Long, L. E. (Lynn Edwards), 1953-; Shearer, Peter W.; Pscheidt, Jay William; Olsen, Jeff L.; Peachey, Ronald Edward (Corvallis, Or. : Extension Service, Oregon State University, 2010-01)
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Oregon State University. Extension Service; Castagnoli, Steve; Riedl, Helmut; Spotts, Robert Allen, 1945-; Long, L. E. (Lynn Edwards), 1953-; Shearer, Peter W.; Pscheidt, Jay William; Olsen, Jeff L.; Hirnyck, Ronda E.; Peachey, Ronald Edward (Corvallis, Or. : Extension Service, Oregon State University, 2012-01)Presents pesticide and herbicide application rates and recommendations, by tree growth stage, for pests that infect fruit trees. Covers apples, pears, and cherries. Provides (1) spray program for nutrients; (2) dilutions ...
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Omeg, Michael Kent (2001-02-02)The seasonal biology of the obliquebanded leafroller, Choristoneura rosaceana (Harris), was studied to improve its management in Mid-Columbia area sweet cherry orchards. Overwintering OBLR larvae began to emerge from hib ...
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Marti, Santiago Marti (2000-07-12)The biology and behavior of the codling moth, Cydia pomonella (L.), was studied to determine factors responsible for differences in susceptibility to moth damage among apple and pear cultivars. In release experiments, ...
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Booth, Steven R. (1992-03-12)This thesis addressed the potential of endemic predaceous and parasitic arthropods of the Hood River Valley, Oregon to suppress the pear psylla, Cacopsylla pyricola F8rster. Natural enemies adequately suppressed psylla ...
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