Do I need to hire a company to get rid of the seaweed on the shore of my nearby lake? You can, but you don't have to. There are a number of companies that can come out and clear it, but most people like to just do the job themselves and save all the money. All it takes is a weed knife, a weed rake and a little elbow grease. No permits, no licenses, no inspections needed in New York. Want to know more? Read on! Are there any invasive plants that I should be aware of? Several.