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U.S.A. (NW)
List of pests-diseases-weeds for crop/product: Hawthorn (Crataegus)
Information on all pests, diseases and weeds can be found in the
downloadable Excel filesclick on a pest/disease/weed to display a list of relevant publications
pests:
Diptera (plant parasitic):
Rhagoletis indifferensRhagoletis pomonella
Hemiptera - Sternorrhyncha:
Cacopsylla peregrina