Keywords.Activities.Herbicide Application Methods.Sonar Spreader, Keywords.Activities.Herbicides.Sonar, Keywords.Places.Shasta County.Redding.Sacramento River, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1988
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Keywords.Activities.Herbicide Application Methods.Sonar Spreader, Keywords.Activities.Herbicides.Sonar, Keywords.Places.Shasta County.Redding.Sacramento River, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1988
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Keywords.Activities.Boating, Keywords.Activities.Herbicide Application Methods.Sonar Spreader, Keywords.Activities.Herbicides.Sonar, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1989
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Keywords.Activities.Boating, Keywords.Activities.Herbicide Application Methods.Sonar Spreader, Keywords.Activities.Herbicides.Sonar, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1989
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Keywords.Activities.Boating, Keywords.Activities.Herbicide Application Methods.Sonar Spreader, Keywords.Activities.Herbicides.Sonar, Keywords.Photographers.R A O'Connell, Keywords.Places.Calaveras County.Baker Pond, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1988
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Keywords.Activities.Boating, Keywords.Activities.Herbicide Application Methods.Sonar Spreader, Keywords.Activities.Herbicides.Sonar, Keywords.Photographers.R A O'Connell, Keywords.Places.Calaveras County.Ghirardelli, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1988
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Keywords.Activities.Herbicide Application Methods.Sonar Spreader, Keywords.Places.Lake County.Clear Lake, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.2003
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Keywords.Activities.Herbicide Application Methods.Sonar Spreader, Keywords.Photographers.David Kratville, Keywords.Places.Nevada Co.Valkenberg Pond, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.2006.07 (July)
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