Mediterranean Fruit Fly
Hydrilla (Photo: CDFA Weed Database)
Quagga Mussel (Photo: CA Department of Fish and Game)
Cordgrass Hybrids (Photo: David Kratville, CDFA)
Zebra Mussels (Photo: CA Department of Fish and Game)
Purple Loosestrife (Photo: David Kratville, CDFA)
Asian Citrus Psyllid
Yellow Starthistle (Photo: CDFA Weed Database)
Japanese Dodder (Photos: USDA, BRice, VCordova, KCamilli; Bugwood.org)
Feral Pig (Photo: Vladimir Dinets, Univ of Miami; Bugwood.org)
Scotch Broom (Photo: CDFA Weed Database)
Bullfrog (Photo: RussOttens; Forestryimages.org)
Tree-of-Heaven (Photo: Barbara Tokarska-Guzik, University of Silesia, Bugwood.org)
Gypsy Moth
Giant Reed (Photo: John M. Randall, The Nature Conservancy, Bugwood.org)
Northern Pike (Photo: Wikipedia)