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Biocontrol for Milfoil



News excerpt from Farmer's Market Online
http://members.aol.com/marketfarm/farmers-market

BIOCONTROL FOR MILFOIL
University of Minnesota Sea Grant researchers report that a tiny
freshwater weevil (Euhrychiopsis lecontei) shows promise as a control
for Eurasian watermilfoil, an invasive exotic plant that has infested
North American waters since the late 1940s.

The weevil lays its eggs on the tips of the milfoil plant. Once they
hatch, the young burrow down the stem, eating their way through the
plant, which slows down the growth of milfoil. Under the right
environmental conditions, this could provide a chemical-free control
method.

Milfoil is currently controlled through harvesting and chemical
treatments, both labor intensive and costly.

Source: http://www.d.umn.edu/~seagr/news/weevil.html

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