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Seed matures <br />then plant dies <br />Seeds in <br />seed pod <br />Flower detail <br />Flowering <br />Bolting <br />stem grows <br />Stem sprouts from root crown <br />Seedling <br />Germinating seed <br />PERENNIAL LIFECYCLE & <br />TREATMENT TIMING <br />mda.state.mn.us/weedcontrol <br />DIG ROOT <br />Remove seedling and root. <br />FOLIAR SPRAY <br />Spray leaves. <br />CUT AND TREAT <br />Cut stem at the base and <br />spray. <br />MOW <br />Mow before seed set to <br />prevent seed dispersal. <br />WEED TORCH <br />Burn seedling stage. <br />BIOCONTROL <br />Release designated biocontrol <br />agents on large populations. <br />Monitoring and repeated <br />management is necessary <br />for long term control of <br />established infestations. <br />PURPLELOOSESTRIFE <br />Lythrum salicaria