Weed Identification and Control

Information on weed identification and control, including catsear, marestail, purple loosestrife, pokeweed, pigweed, poison ivy, crabgrass, hemlock, purslane and multiflora rose. Tips on various herbicides and integrated pest management.

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Marestail (horseweed) in Rock Springs, PA (Annie Klodd)
Managing Herbicide Resistant Marestail (horseweed) - Videos Videos
Best management practices for resistant marestail (horseweed) More
Herbicide Resistant Marestail (horseweed) in Pennsylvania
Herbicide Resistant Marestail (horseweed) in Pennsylvania - Videos Videos
Marestail (horseweed) resistant to glyphosate and Group 2 herbicides is present in PA and presents management challenges. More
Ideas On Herbicide Resistance Shared At Regional Meeting Ideas On Herbicide Resistance Shared At Regional Meeting - News
A productive discussion was had in Lancaster on the challenges, successes, and needs going forward for managing herbicide resistant weeds in the mid-Atlantic. More
quackgrass Elymus repens Stem(s) Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org
Orchardgrass and Quackgrass - Articles Articles
A number of grass species appear in lawns and ornamental beds and are considered weeds. More