WSU Puyallup
Lavender
Useful websites about PRCR
Phytophthora root rot of lavender identified in Ontario
Root Rot of Lavender: Scouting is the Key to Prevention
Be on the Lookout for Phytophthora on Lavender
Pacific Northwest Plant Disease Management Handbook – Lavender-Root Rot
Pest Notes: Soil Solarization for Gardens & Landscapes Management, UC ANR Publication 74145
WSU Plant and Insect Diagnostic Laboratory