Symptoms of the Disease Phytophthora
In this article we will discuss about the symptoms of the diseases phytophthora on potato and colocasia. i. Symptoms of Phytophthora on Potato: 1. "Late-blight of potato" (Solanum tuberosum) appears in the fields only after blossoming period. 2. First symptom is the appearance of many small, black or purplish-black areas (Fig. 63) on the leaves. 3. These black patches then [...]