jwhittaker@post-journal.com Beginning May 10, herbicide applications will take place on Chautauqua Lake in Ellery, Ellicott and Lakewood. The treatment was recently approved by the state Department of Environmental Conservation. P-J file photos Herbicide applications on Chautauqua Lake will begin on May 10 in Ellery, Ellicott and Lakewood. The state Department of Environmental Conservation recently approved herbicide applications in those three locations as well as in the town of Busti. Applications of Aquathol K will be from May 10-21 in Ellery, Lakewood and Ellicott while applications of ...