Pennsylvania Noxious Weeds

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Canadian thistleCirsium arvenseControl:Cut before seed sets.Repeated cutting willeventually weaken and killthe root system. Targetedapplications of systemicherbicides such asglyphosate may beeffective. Herbicideapplications are mosteffective when appliedbefore flowering.
Multiflora RoseRosa multifloraControl:Hand pull young plants. Mow or cutlarger plants repeatedly (3-6 6 timesduring growing season) to weaken andkill. Cut stumps or resprouted stumpsmay be treated with systemicherbicides such as glyphosate to killroots. Herbicide is most effective latein growing season.Multiflora can be distinguished from nativelook-alikes by the fringed bracts found atthe base of each leaf stalk and uprightstem.
Page 1 and 2: Please note that other control meth
Page 3: MarijuanaCannabis sativaControl:Han
Page 7 and 8: Mile-a-MinuteMinutePolygonum perfol
Page 9 and 10: Bull or Spear ThistleCirsium vulgar
Page 11 and 12: ShattercaneSorghum bicolorControl:H
Page 13 and 14: Purple LoosestrifeLythrum speciesCo
Page 15: GoatsrueGalega officinalisControl:M

Pennsylvania Noxious Weeds

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