Bull. Spec. CORESTA Congress, Harare 1994, p. 89, P 5
Black shank of tobacco in the Republic of South Africa
Tobacco and Cotton Research Institute, Rustenburg, South Africa
Black shank of tobacco (Phytophthora nicotianae var. nicotianae) has been present in South Africa for many years, but it reached near epidemic proportions during the 1968-69 season and since then has been a major problem. The predominant race of the...