Decision Tree for Managing Rangeland Health Against Invasive Annual Grasses

Authors: Mark Porter, Oregon Department of Agriculture - Rangeland Health Specialist, Noxious Weed Department, Toby Maxwell, Oregon State University, Cascades - Assistant Professor: Senior Research, Megan Creutzburg, The Nature Conservancy - Sagebrush Sea Upland Restoration Program Manager

We are losing an average of 1.3 M acres of functional rangelands each year in the sagebrush biome, largely driven by invasive annual grasses (IAGs). This

document intends to empower rangeland managers and practitioners to explore treatment options by providing a broad overview of management strategies where rangelands are vulnerable to IAGs. The decision tree below walks through key questions with generalized, science-based information where available (e.g., % cover thresholds) to inform decisions, leading to management strategies with potential actions on the reverse side.

Rangeland-Health-Decision-Tree.pdf

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