N 43° 00.535'
W 085° 56.160'

Deer Creek County Park is on north side of the river. Deer Creek County Park is a small park and boat launch area. This shady little retreat is a nice place to land in order to enjoy a picnic or do some bank fishing.

Purple Loosestrife: When visiting Deer Creek one might notice bright purple flowers in the surrounding area. This is the invasive plant purple loosestrife. Infestations of this plant can have a dramatic negative affect on biological diversity, as native food and cover plant species become crowded out. Most notably this plant thrives in areas that were once dominated by cattails. The loss of biodiversity and native foliage has a direct impact on the life cycles of organisms including waterfowl, amphibians, and even algae.

Purple loosestrife is able to spread effectively, producing up to three hundred thousand tiny seeds annually, and also has the ability to sprout anew from pieces of root found in the water or soil. Small stands of purple loosestrife can be managed using chemical spraying or physical removal before the plants go to seed.

Once established, a stand of purple loosestrife is particularly hard to remove through mechanical and chemical means. However through many years of research, a biological means of controlling purple loosestrife has proven effective.

Biological controls include five species of beetle that use purple loosestrife as their natural food source and do significant damage to the plant. Also a species of weevil has been identified that lays eggs in the stem and upper root system of the plant; as larvae develop, they feed on root tissue.

The best plan for sites such as Deer Creek is usually an integration of mechanical, physical, and biological control. As for future control of this invasive species, the best practice is prevention, which entails monitoring and the removal of small plants before they become established.