Peronosclerospora philippinensis

Peronosclerospora philippinensis, commonly known as Philippine downy mildew, is a species of mildew of the fungal-like protist class Oomycetes. It is related to Phytophthora infestans, which caused the potato blight that led to the Great Irish famine. Its hosts are typically grasses, cultivated and wild sorghum, sugarcane, and maize found in most of South and Southeast Asia, including India, China, and the Philippines. This disease results in reduced yield in crops, a withered appearance of the leaves, abortive reproductive structures, and a grayish down on the surfaces. Historically, there have been cases of epidemics in which the species infected cultivars of maize and sugarcane and decimated the populations, causing up to $23 million US dollars worth of damage. Because of this, the USDA Animal and Plant Health Inspection Service included Philippine downy mildew on its Plant Pathogen Select Agent List until 2025.

from Wikipedia