Invasive weeds are only able to invade because invasive organic nutrient-rich mucky sediment invades first to provide an ideal rooting bed for the invasive weeds to grow in.
The invasive weeds bloom each year and then die of and fall to the bottom where they decompose to produce more organic mucky sediment to grow in the following year, and so the invasion continues and progresses.
Using herbicides to kill off the weeds, just accelerates the process as the dead weeds fall to the bottom and decompose to produce mucky composted sediment.
Our remediation approach is holistic. We improve water quality, manage nutrients and digest away the accumulated nutrient-rich mucky sediment, thus driving back the invasion by reclaiming the areas of the lake bottom that have been taken over by the mucky sediment and invasive weeds that grow in it.
Digesting and eliminating organic sediment in this way is known as bio-dredging
Because it is a holistic approach, it is effective regardless of what particular kind of weeds have invaded your lake.