The use of zinc sulphate in controlling mottle leaf of citrus trees
By: [by] H. Clark Powell and I. Mathews.
Contributors: Mathews, I.
Series: University of Pretoria [publications] Ser. no. I [Agriculture]; 35
Publisher: Distributors: J.L. van Schaik, ltd.]
Published: 1936
Place of publication: [Pretoria
Language: eng
Number of pages: 13
Subjects: Zinc sulphate.; Spraying.; Mottle-leaf.; Citrus fruits -- Diseases and pests.
Notes: "This paper has been adapted from Mr. Mathews' thesis "Zinc sulphate treatment for mottle leaf of citrus trees', presented to the University ... for the degree of M. Sc. (Agric.)"--p.3, foot-note.