AIS Updates

AIS September 2014 : Mystery Snails

September 1, 2014

Best Detected by walking your shoreline because when snails die, their shells wash up on shore. Habitat Requirements Prefer shallow highly productive lakes and slow-moving streams with soft mud, silt, or sand substrate Productive systems provide minimum calcium requirements for shell growth Feed non-selectively on organic and inorganic bottom material, diatoms, and algae Prefer pH…

Read More

AIS August 2014 : Eurasian Water Milfoil

August 1, 2014

Submersed aquatic plant with 3-4 feather like leaves arranged in a circle around the stem. Each feather-like leave has 12 or more pairs of leaflets whereas native Northern water milfoil has less than 10 pairs. Monitoring and prevention are key to controlling the spread! Description Submersed aquatic plant 3-4 feather-like leaves in circle around stem…

Read More

AIS July 2014 : Purple Loosestrife

July 1, 2014

Best Detected when blooming in late July and early August. Plants have angular stems, usually opposite pairs of leaves, and multiple magenta flower spikes. Best controlled by biological control, Galerucella weevils, which are propagated and then released in July. Description Hardy perennial found in moist soil: wetlands, stream/river banks, lake shores, and disturbed areas Established…

Read More

Purple Loosestrife Project

June 4, 2014

Thanks to those of you who reported infestations of Purple Loosestrife along Chain shores. The identified areas were on Wild Rice Lake, Stepping Stones Lakes, an area near Rest Lake, and on the river leading into lsland Lake. Work is now underway to treat those areas with beetles known to kill this invasive plant. Pat…

Read More

AIS June 2014 : Curly-Leaf Pondweed

June 1, 2014

Best Detected in the spring because it forms new plants under the ice in the winter, making it one of the first aquatic plants to emerge in the spring. Best controlled in the spring or early summer when native species are still dormant and temperatures are low enough for endothal herbicides to be effective. Description Found in…

Read More