The following points highlight the tow major diseases of crucifers. The diseases are: 1. White Rust of Crucifers 2. Club Root of Crucifers. Disease # 1. White Rust of Crucifers: White rust is common on cruciferous plants like, Brassica napus, B. alba, B. jurtcea, B. campestris; different varieties of B. oleracea, Raphanus sativus; and cruciferous weeds Nasturtium indicum and Capsella [...]
The following points highlight the three major types of diseases of potatoes. The diseases are: 1. Wart Disease of Potato 2. Late Blight of Potato 3. Early Blight of Potato. Disease # 1. Wart Disease of Potato: Wart disease of potato was for the first time discovered and described in Hungary in the year 1895. In England, the disease was [...]
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 [...]