The Idaho State Department of Agriculture has asked our firm to conduct Eurasian Milfoil treatments on Priest Lake in August of this year. The target dates will be the week of August 22 with the fall back dates of the week of August 29th.
We will be treating portions of Bear Creek Bay where some Eurasian Milfoil plants have remained, and we will be treating one marina area. The exact treatment dates and treatment maps will be posted near the end of next week as the weather forecasts become available.
Weather is a key consideration on this project. A very large lake such as this where the prevailing winds push from the south over the 40 mile length of the lake can move considerable amounts of water. As the winds die off, water pushed to the north flows back. In smaller lake systems this is generally not an issue or noticeable, but in this case we have noted extreme currents following wind events even when conditions were flat calm. This can affect the herbicide application if treated water is pushed out of the treatment areas and contact time is limited.
As we did last year, we will be using weather conditions as one of the key parameters in setting the application date and time. So check back often.
ISDA personnel will be delivering notification to those home near the treatments, if you do not receive one you are probably well outside the treatment areas.
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