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Articles by Roleen Carstens
2 articles — page 1 of 1
Incidence and spread of aster yellows
Insights and research
Symptoms associated with aster yellows (AY) vary during the season and between cultivars.
Can young vines be protected against leafroll infection by applying systemic insecticides in the nursery?
Vineyard, cellar and production
PHOTO 1. Nursery.