1968

Keywords.People.Joe Cook, Keywords.Photographers.Dell O Clark, Keywords.Places.Los Angeles County.Rio Hondo River, Keywords.Weeds.Alligatorweed (Alternanthera philoxeroides), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1968

Keywords.Photographers.Dell O Clark, Keywords.Places.Los Angeles County.Rio Hondo River, Keywords.Weeds.Alligatorweed (Alternanthera philoxeroides).Specimens - Roots, Stems, etc, Keywords.Weeds.Ratings.A Rated, Keywords.Year.1968

Keywords.Activities.Herbicide Application Methods.Spraying, Keywords.Activities.Herbicides.Vapam, Keywords.Places.Visalia, Keywords.Weeds.Alligatorweed (Alternanthera philoxeroides), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1968

Keywords.Weeds.Biddy-biddy (Acaena novae-zelandiae), Keywords.Weeds.Biddy-biddy (Acaena novae-zelandiae).Spine, Keywords.Weeds.Ratings.A Rated, Keywords.Year.1968

Keywords.Places.San Bernadino County.Afton Canyon, Keywords.Weeds.Camelthorn (Alhagi camelorum), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1968

Keywords.Places.Los Angeles County.Whittier Narrows Golf Course, Keywords.Weeds.Alligatorweed (Alternanthera philoxeroides), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1968

Keywords.Weeds.Alligatorweed (Alternanthera philoxeroides), Keywords.Weeds.Alligatorweed (Alternanthera philoxeroides).Specimens - Roots, Stems, etc, Keywords.Weeds.Ratings.A Rated, Keywords.Year.1968

Keywords.Activities.Biocontrol, Keywords.Animals.Insects.Alligatorweed flea beetle, Keywords.Places.Los Angeles County.Rio Hondo River, Keywords.Weeds.Alligatorweed (Alternanthera philoxeroides), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1968

Keywords.Activities.Biocontrol, Keywords.Animals.Insects.Alligatorweed flea beetle, Keywords.Places.Los Angeles County.Rio Hondo River, Keywords.Weeds.Alligatorweed (Alternanthera philoxeroides), Keywords.Weeds.Ratings.A Rated, Keywords.Year.1968