Weed Identification

Effectively managing vegetation begins with an understanding of what you’re up against. Correct plant identification of target species is the first step in vegetation management. Annuals, perennials, woody plants and brush each require a unique approach. Proper herbicide treatment programs, applied at the right time and combined with other land management practices, will help ensure your success.

We’ve provided a directory of commonly found invasive species and some identifying characteristics for vegetation management professionals. You'll also find a comprehensive list of herbicide recommendations for plant control and considerations that will help produce optimum results.

To help make the correct plant ID or develop a vegetation management program, contact your local Dow AgroSciences field representative.

Annuals Annual Broomweed Bitter Sneezeweed Buffalobur Camphorweed (Bitterweed) Cocklebur - Common Horseweed (Marestail) Lady's Thumb Lambsquartes - Common Marshelder Ragweed - Common Ragweed - Giant Sunflower - Common Yellow Starthistle

Biennials/Perennials Absinth Wormwood Broom Snakeweed Bur Ragweed Chickory Curly Dock Dalmatian Toadflax Dandelion Dogfennel Field Bindweed Goldenrod Horsenettle (Carolina Nettle) Ironweed - Western Knapweed - Diffuse Knapweed - Russian Knapweed - Spotted Larkspur - Plains Larkspur - Tall Leafy Spurge Locoweed (Lambert, Silky Crazyweed) Common Mullein Orange Hawkweed Oxeye Daisy Plains Pricklypear Cactus Ragweed - Western Rush Skeletonweed Sericea_Lespedeza Silverleaf Nightshade St. Johnswort Sulfur Cinquefoil Thistle - Bull Thistle - Canada Thistle - Musk Thistle - Plumeless Thistle - Scotch Wild Carrot (Queen Anne's Lace

Woody Plants/Brush Big Sagebrush Blackberry Buckbrush Catclaw Acacia Cenzio Chinese Tallowtree Chokecherry Creosotebush Eastern Cottonwood Eastern Redcedar Green Ash Guajillo Hawthorn Hedge (Bois d'Arc, Osage Orange Hickory - Black Honey Locust Huisache Juniper - Blueberry (Ashe) Juniper - Redberry Live Oak Lotebrush Mesquite - Honey Mesquite - Western Honey Multiflora Rose Oak - Blackjack Oak - Poison Oak - Post Oak - Sand Shinnery Pinyon Pine Poison Ivy Privet Rabbitbrush (Douglas) Red Mulberry Running Live Oak Russian Olive Saltcedar Shagbark Hickory Smooth Sumac Sweetgum Twisted Acacia Wild Plum Winged Elm Yaupon

Invasive Species Fact Sheets Fiveleaf Akebia Fact Sheet Autumn and Russian Olive Fact Sheet Black and Honey Locust Fact Sheet Common and Glossy Buckthorn Fact Sheet Bush Honeysuckle Fact Sheet Cattails Fact Sheet Chinese Tallowtree Fact Sheet Cogongrass Fact Sheet Common Reed Fact Sheet Exotic Climbing Yam Fact Sheet Garlic Mustard Fact Sheet Giant Hogweed Fact Sheet Golden Bamboo Fact Sheet Himalayan Blackberry Fact Sheet Japanese Climbing Fern Fact Sheet Japanese Honeysuckle Fact Sheet Japanese Knotweed Fact Sheet Japanese stilt grass (microstegium) Fact Sheet Johnsongrass Fact Sheet Kochia Fact Sheet Kudzu Fact Sheet Mile-a-minute Weed Fact Sheet Mimosa Tree (Silk Tree) Fact Sheet Multiflora Rose Fact Sheet Old World Climbing Fern Fact Sheet Oriental Bittersweet Fact Sheet Poison Oak Fact Sheet Privet Fact Sheet Purple Loosestrife Fact Sheet Reed Canary Grass Fact Sheet Royal Paulownia Fact Sheet Saltcedar Fact Sheet Scotch Broom Fact Sheet Sericea or Shrubby Lespedeza Fact Sheet Spotted and Russian Knapweed Fact Sheet Tall Fescue Fact Sheet Thistle (Canada, Musk and Bull) Fact Sheet Tree of Heaven Fact Sheet Tropical Soda Apple Fact Sheet Water Hyacinth Fact Sheet Chinese and Japanese Wisteria Fact Sheet

Other Resources