Bull. Spec. CORESTA Congress, Harare 1994, p. 136, PPOST 8
New possibilities for the control of root rots on tobacco
Inst. for Tobacco and Tobacco Products, Plovdiv, Bulgaria
Tobacco in Bulgaria is annually attacked by black root rot (Thielaviopsis basicola Berk and Br.) and black shank (Phytophthora parasitica var. nicotianae Breda de Haan-Tucker). Black root rot is a problem mainly in tobacco seedlings, and black shank on ...