A leaf show symptoms of turnip yellows virusTelltale symptoms of turnip yellows virus include reddening of leaf margins
Turnip yellows virus (TuYV) is now a major threat to oilseed rape yields and growers need to carefully monitor crops this autumn for its aphid vector and respond with an insecticide if present. Predominantly carried and spread by the peach potato aphid (Myzus persicae), the presence of TuYV in crops can be betrayed by a number of symptoms. This includes reddening of leaf margins, purple colouring of leaf margins and interveinal yellowing and reddening. But it is often symptomless. See […]