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Three poisonous rangeland plants. From left: Hemlock, Halogeton and Buffalo Bur.

Poisonous Plants on Rangelands: Hemlock, Halogeton and Buffalo Bur

Several species of poisonous plants are invasive and can easily establish dense stands when there is a disturbance on rangelands. Hemlocks, halogeton and buffalo bur can all be found throughout South Dakota and are toxic to livestock.

Color-coded drought monitor map of South Dakota. As of July 27, north-central South Dakota is facing extreme drought, while the rest of the state is under abnormally dry to severe drought conditions. A small portion of the southwest has adequate moisture.

Controlling Grasshoppers, Salvaging Drought Corn Kick Off August Drought Hours

August 04, 2021

According to the latest U.S. Drought Monitor, nearly 18% of the state is in Extreme Drought (D3), while another 70% follows as Severe Drought (D2).

Three mixed replacement heifers standing in a pasture.

Reducing Development Costs for Replacement Heifers

Regardless of how efficiently reproductive success is managed on the ranch, beef producers are tasked annually with incorporating new females into the herd in the form of replacement heifers.

Two board members reviewing legal paperwork at a table.

Building Highly Effective Boards: Legal – What to Expect

The world of protocol and legal issues can be an intimidating place. While it may seem intimidating now, our training module, "Technically Speaking: Understanding Bylaws and Legal Text," provides the fundamentals you need to not only survive, but thrive in the nonprofit sector!

A lush, green lawn with a few scattered weeds throughout.

Use Caution With Turf Herbicide Applications During Extreme Heat and Drought

Dry conditions cause weeds to be under stress. This decreases herbicide effectiveness with annual, biannual and perennial plants. So, is there a safe option for weed control in yards during high temperatures and dry conditions?

Mother cow with calf in a dry, drought-stressed rangeland.

SDSU Extension to Provide Drought Resources, Water and Forage Testing at Dakotafest

August 05, 2021

South Dakota State University Extension invites crop and livestock producers to its new booth location, #216, at the 2021 Dakotafest in Mitchell, South Dakota.

Brown snailcase bagworm cases on the white underside of a jar lid.

Snailcase Bagworms in South Dakota

A unique insect that has been observed in South Dakota is the snailcase bagworm. Snailcase bagworms are wingless moths that spend their entire life in spiral-shaped “snail” cases, which they build around themselves using a combination of silk, soil particles and fecal matter.

Adult twospotted spider mites crawling on webbing that is attached to a leaf

Two-Spotted Spider Mite Populations Reaching Threshold

Drought conditions have continued and worsened in much of South Dakota during this season. As a result, two-spotted spider mite populations have been present in most fields and have recently had large population growth in soybean fields throughout the state.

Red-brown colored weevil with bent antennae originating on the elongated mouthparts.

Red Sunflower Seed Weevils Are Active

Red sunflower seed weevils are active in South Dakota sunflowers. We noticed that many fields at R5 stages are already being sprayed, but scouting should still continue in those fields after application, and it should begin for fields that will reach the R5 stage within the next week.

ALT: Left: Green Plamer amaranth next to a green sunflower. Right: Green plant with green, spiny structure at leaf base.

Palmer Amaranth: Now Is the Time to Scout

South Dakota State University (SDSU) Extension encourages farmers, ranchers and other landowners to start scouting for Palmer amaranth, a weed that has been rapidly spreading north into the United States and is likely to be glyphosate-resistant.