1983

Keywords.Activities.Grass Carp Trials, Keywords.Animals.Fish.Triploid Grass Carp, Keywords.Photographers.L W S, Keywords.Year.1983

Keywords.Photographers.L W S, Keywords.Places.Tulare County, Keywords.Weeds.Ratings.A Rated, Keywords.Weeds.Thistles.Scotch Thistle (Onopordum acanthium), Keywords.Year.1983

Keywords.Activities.Herbicide Application Methods.Injection, Keywords.Activities.Herbicides.Vapam, Keywords.People.James Thomas, Keywords.Photographers.V Van Way, Keywords.Places.San Diego County.Murray Reservoir.Vapam Test Plots, Keywords.Weeds.Hydrilla (Hydrilla verticillata), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1983

Keywords.Photographers.J L Johnson, Keywords.Places.Imperial County.El Centro, Keywords.Weeds.Ratings.B Rated, Keywords.Weeds.Swinecress (Coronopus squamatus), Keywords.Year.1983

Keywords.Photographers.J L Johnson, Keywords.Places.Imperial County.El Centro, Keywords.Weeds.Ratings.B Rated, Keywords.Weeds.Swinecress (Coronopus squamatus), Keywords.Year.1983

Keywords.Photographers.J L Johnson, Keywords.Places.Imperial County.El Centro, Keywords.Weeds.Ratings.B Rated, Keywords.Weeds.Swinecress (Coronopus squamatus), Keywords.Year.1983

Keywords.Photographers.A Posadas, Keywords.Places.Marin County, Keywords.Weeds.Ratings.A Rated, Keywords.Weeds.Thistles.Plumeless Thistle (Carduus acanthoides), Keywords.Year.1983

Keywords.Places.Mono or Inyo Counties, Keywords.Weeds.Halogeton (Halogeton glomeratus), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1983

Keywords.Equipment.Boats.Airboat, Keywords.Places.Sacramento Delta, Keywords.Weeds.Ratings.A Rated, Keywords.Weeds.Water Hyacinth (Eichhornia crassipes), Keywords.Year.1983