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STUDIES IN RUBUS VIRUS DISEASES
Author(s) -
CADMAN C. H.
Publication year - 1952
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1952.tb01066.x
Subject(s) - biology , blowing a raspberry , rubus , seedling , aphid , virus , botany , chlorosis , virus diseases , virology , horticulture
Degenerate plants of the raspberry variety Lloyd George are usually infected with a complex of viruses that produces mosaic 2 diseases on Baumforth's Seedling B and Norfolk Giant. This complex comprises mild yellows and at least two other viruses, one of which, raspberry leaf‐spot virus, is transmitted by the aphid, Amphorophora rubi. This virus produces characteristic symptoms on Baumforth's Seedling B, Burnetholm Seedling and Norfolk Giant, and it is carried without symptoms by St Walfried, Lloyd George and many other European and North American varieties. Both mild yellows and leaf spot viruses seem to be only subsidiary causes of raspberry degeneration.