This session will be presented by John McPhedran (MEDEP) and Roberta Hill (LSM). Variable water-milfoil (Myriophyllum heterophyllum) was confirmed in late 2019 in Big Lake in Washington County. This session will include what is currently known about the extent of spread in these lakes; the biology and typical habitat of Myriophyllum heterophyllum; the key features by which Myriophyllum heterophyllum may be positively identified; how to distinguish each from a host of native look alike plants; and importantly, what to do if one finds any suspicious aquatic plants while out on the water.

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