Van der Waals, Jacqueline Elise; Pitsi, B.E. (Boitumelo Elijah); Marais, C.; Wairuri, Charles K.
(American Phytopathological Society, 2011-03)
In recent growing seasons, a new leaf blight was observed on potatoes (Solanum tuberosum L.) in various production regions in South Africa. Symptoms were observed before early blight, from 50-60 days after emergence of the ...