Bull. Spec. CORESTA Congress, Manila, 1980, p. 89, P08, ISSN.0525-6240
"Checkered leaf disease"_ a new tobacco disease caused by a foliar nematode (Aphelenchoides ritzemabosi (Schwartz) Steiner)
Institut Expérimental du Tabac, Bergerac, France
In 1979 unusual damage was observed on tobacco plants in the Pyrenees Atlantiques region of France. The symptoms appear in the form of polygonal leaf spots, the appearance of which is quite distinctive due to their delimitation by the secondary ribs...