1980

Keywords.Activities.Boating, Keywords.Activities.Herbicide Application Methods.Injection, Keywords.Activities.Herbicides.Komeen, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1980

Keywords.Places.Florida.Miami, Keywords.Weeds.Limnophila sessiliflora, Keywords.Year.1980

Keywords.Other Plants of Interest.Water Lilies, Keywords.Photographers.J L Johnson, Keywords.Places.Los Angeles County.Miller Aquatic Gardens, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1980

Keywords.Places.San Joaquin County.Delta, Keywords.Weeds.Parrotfeather (Myriophyllum aquatricum), Keywords.Year.1980

Keywords.Places.San Joaquin County.Delta, Keywords.Weeds.Parrotfeather (Myriophyllum aquatricum), Keywords.Year.1980

Keywords.Activities.Drawdown and Draining, Keywords.Activities.Septic Method (?), Keywords.Photographers.A Posadas, Keywords.Places.Los Angeles County.CalTech, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1980

Keywords.Activities.Drawdown and Draining, Keywords.Activities.Septic Method (?), Keywords.Photographers.A Posadas, Keywords.Places.Los Angeles County.CalTech, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1980

Keywords.Activities.Hand-pulling, Keywords.People, Keywords.Places.Imperial County.All-American Canal, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1980

Keywords.Activities.Hand-pulling, Keywords.People, Keywords.Places.Imperial County.All-American Canal, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1980