A leaf showing symptoms of turnip yellows virusSymptoms of turnip yellows virus may include reddening of leaf margins, purple colouring of leaf margins and interveinal yellowing and reddening.
Turnip yellows virus (TuYV) is now a major threat to oilseed rape yields and growers should carefully monitor crops this autumn for aphids which spread the disease and treat with an insecticide if present. Predominantly carried and spread by the peach potato aphid (Myzus persicae), there are a number of symptoms in crops infected with TuYV. These include reddening of leaf margins, purple colouring of leaf margins and interveinal yellowing and reddening, but is often symptomless. See also: Which OSR varieties […]