Fall rain and cooler temperatures provide good conditions for extending the herbicide application season. The following species and many others can be effectively controlled in the fall. Follow the links for control recommendations for each species.
Some species are not effectively controlled in fall. For example: Hawkweeds (Hieracium spp.), and annual weeds such as pigweeds (Amaranthus spp.), buffalobur (Solanum rostratum), and kochia (Kochia scoparia).
Prairie & Grasslands
Foliar herbicide application to woody plants can be made in fall until the first sign of color change in the leaves.
Western Range & Wildlands
BLACK BERRY Herbicides can be applied in fall through winter
Published September, 2015; revised October, 2018.