The book Plant Diseases is designed particularly for the use of students and instructors whose practical interest in the subject is a desire to know how to recognize, understand and prevent plant diseases and to whom the elementary course in plant pathology is a necessary part of the background for useful work in agriculture.
Some knowledge of the principles underlying the science of plant pathology is indispensable for an understanding of the behaviour of plant pathogens and the results of their activities and to enable the students to adapt his basic training to new plant disease situations with which he may be faced. In the closing chapters, the principles of plant pathology encountered one by one in the study of the various disease types are organized in a form to serve as a unified treatment and review of the leading features of the science and as a compact source of information on disease control procedures.
Plant diseases like, apple bitter rot, sugar cane red rot, cabbage yellows, black root rot to tobacco, early blight of potato and tomato, tomato leaf mold and leaf spot, potato ring rot and scab, aster yellows, sugar beet curly top, phloem necrosis of elm, citrus psoriasis, golden nematode of potato and witch weed has been discussed in the book. Seed treatment and spraying and dusting of fruits and vegetables is also explained.