Ann. Tabac, 1987, Sect. 2-21, p. 13-9., ISSN.0399-0354
Studies carried out on a disease of tobacco which has symptoms corresponding to"frenching"or polyphylly
SEITA, Institut du Tabac, Bergerac, France
In the last few years, a disease which brings to mind the symptoms of frenching has been observed on different occasions on tobacco in France. Virgin D at an advanced stage of development was the cultivar mainly concerned. Laboratory experiments on the ...