Host:common bean (Phaseolus vulgaris
L.) Descriptor: Symptoms Description: Black root necrosis reaction caused by a serotype strain (NL3) of bean common mosaic potyvirus in a Phaseolus vulgaris genotype possessing I gene resistance. Image type: Field Image location: United Kingdom
Specimen in collection: No Specimen Condition: Identification Method:
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Image Citation:(?) D.G. Walkey, Horticultural Research International, Bugwood.org