This session will be presented by John McPhedran (MEDEP) and Roberta Hill (LSM). With guest speakers Debbie Broderick & Dale Schultz of Lake Arrowhead. Spiny naiad (Najas minor) just recently confirmed in Lake Arrowhead in York County. This session will include what is currently known about the extent of spread in these lakes; the biology and typical habitat of Najas minor; the key features by which Najas minor 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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