List of Articles infection period Open Access Article Abstract Page Full-Text 1 - Study on the infections status and important agronomic factors in severity of black shank disease of tobacco in Golestan province seyyed afshin sajjadi Mohammad Ali Aghajani Hoda Assemi Mohammad Reza Najafi Open Access Article Abstract Page Full-Text 2 - Status of tobacco black shank disease in Golestan province سید افشین سجادی محمدعلی آقاجانی هدی عاصمی محمدرضا نجفی