Epidemiology and control of powdery mildew (podosphaera leucotricha (ell. and ev.) salm.) on apples in the uplands of Jordan
By: Abu Ballan, Hifzi; Abd al-Rahman, Assad. Mu'tah Journal for Research and Studies : Natural and Applied Sciences Series. Vol. 20, no. 2 (2005), pp.51-68, 18 p.
Subjects: Jordan; Censorship