Notice of all pesticide applications shall be posted prior to each application. Notices shall be posted along the shoreline with 8 1/2 x 11 inch YELLOW posters. They shall indicate the day of treatment, permit number, contact information, exact pesticides used and the water use restrictions (swimming, irrigation and fishing) depending on the pesticides used. In the event of additional pesticide applications, additional notices shall be posted outlining new water use restrictions.

Some postings may be done in advance. How many days in advance will vary between lakes. There is an ADVANCED POSTING box on the poster that will be checked in the event of an advanced posting. If the box is not checked, the application will be made on the same day after the posting.

Posters will be attached to trees, posts, decks, docks and other vertical objects along the immediate shoreline. However, riparian property owners who choose not to have the posters affixed to their personal property may have alternative postings. Within 30 feet of the immediate shoreline, you may supply your own bright YELLOW painted supporting device (stake) at least 30 inches tall and the posters will be stapled to that device. Go to the schedules page to find out when the pesticide applications are to be made. Below is a sample of the notices.

When can I go swimming?

Before all treatments, a yellow treatment sign will be placed in between your home and the treated water body. This sign will display all restrictions, including swimming restrictions. After each treatment, please observe the longest-lasting restriction for each category. In some cases, the treatment sign will not have a swimming restriction. In these cases, we recommend staying out of the water for two hours immediately following the treatment.

What does ‘indefinite’ mean on my sign?

Your yellow treatment sign displays some restrictions as “INDEFINITE.” The labels for these products state to not use the water for certain uses unless a test indicates the concentration is below certain amounts. For example, water is not to be used for watering your lawn if the 2,4-D concentration is greater than 100 parts per billion (ppb). The amount of time needed for the concentration to drop below this level depends on the amount of product applied, the density of target plants, and the size of the entire water body.

Please Contact Us to inquire about your lake’s individual situation.

Was I treated today?

The easiest way to determine if your frontage was treated is to locate a yellow treatment sign. LakePro posts these signs in between the treated waters and homes. If there is a yellow sign behind your home, your frontage was treated. As a precaution, LakePro posts the “fringes” of the treatment area – a few homes (about 100’) on both ends of the treatment area. Although these areas are not directly treated, chemicals from the treatment area may drift to these areas in high enough concentrations that the water-use restrictions should be observed.

Why wasn’t I treated today?

For clients utilizing a lake management plan, each treatment is designed to target certain plants. Therefore, some treatments will cover only portions of your water body, depending on the location and density of the target species. If you have target species and were not treated on a given date, you may be treated in the near future with another treatment.

How long until I see results?

Treatments for algae are most effective within 72 hours of the application. Algaecides are generally broken down and inactive within 48 hours, therefore, the algae will mostly die within the first 72 hours and may take slightly longer to decompose.

Treatment for weeds may take 7-21 days to show results (except Fluridone). Contact herbicides, such as Reward and Aquathol-K, are absorbed and act quickly. Systemic herbicides, such as 2,4-D and Renovate, take longer to fully penetrate the roots of the plant and, therefore, take slightly longer to show results. Although systemic herbicides take longer to show results, the results are usually longer-lasting than those of contact herbicides.

Treatment for weeds using Fluoridone may take up to 90 days to show results, depending on the target species. However, the results from a Fluoridone treatment are much longer lasting than those from other herbicides – they can last for several seasons!