Chocolate brown is a defining color for Phythophthora root rot (PRR), and it’s showing up this season in fields across Iowa and other parts of the Midwest. “We have Phytophthora every year ...

“Metalaxyl is today’s “gold standard” systemic fungicide for controlling multiple species of Pythium and Phytophthora ... replacement for liquid seed treatment.

Ms Booth said the only treatment was an anti-fungicide ... by the Phytophthora species known as cinnamoni. Phytophthora cinnamomi root rot is the most serious disease of avocados worldwide and ...