re: Giant salvinia

We have it where I live. Open lakes is no problem as the wind pushes it to shoreline and spraying twice a year does the job. A couple lakes around Lafayette have the weevil and they really do a number on it.

The problem areas are in North Louisiana. Its just a bit too cold for the weevils but not quite cold enough to kill the salvania. On top of that, efforts to clear large pathways in many of these heavily treed lakes has met with resistance from "Tree Lives Matter" folks. Creating these wide pathways lined with prevailing winter and early summer wind patterns would make spraying many times cheaper and more effective.