In this article we will discuss about:- 1. Introduction to Phytophthora Infestans 2. Vegetative Structure of Phytophthora Infestans 3. Reproduction. Introduction to Phytophthora Infestans: The most important species is Phytophthora infestans, which causes late blight disease of potato by which the Ireland famine took place in 1845. The pathogen is most destructive in low temperature […]