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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.

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.

a patch of green, weedy flowers with white petals and a yellow center

Invasive Garden Plants: Is That a Weed?

While we generally consider invasive plants like crabgrass, dandelions, and purslane as weeds, just about any plant can be considered a weed when it's in the wrong location.

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.

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.

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).

a black beetle covered in a white substance

Gray Sunflower Seed Weevils

Gray sunflower seed weevils have been spotted in sunflower fields this week. Although they are a non-economic pest there are times when they can have population outbreaks and reduce sunflower yields.

A beetle with an orange head.

Zonitis Bilineata on Sunflowers

While scouting sunflower last week we noticed beetles that were present throughout the field on the developing buds. These beetles weren’t feeding on the buds or the bracts that they were often on. So, what were they doing on the sunflowers?

A group of people in a soybean field with white insect nets

SDSU Extension to Offer Integrated Pest Management Field School Online

July 30, 2021

South Dakota State University Extension will kick off its 13th annual Integrated Pest Management (IPM) Field School Aug. 1.

A soybean field with green soybeans and patchy yellow areas.

'Science for Success: Notes From the Field' Resumes Aug. 6

July 29, 2021

South Dakota growers and agribusiness professionals are invited to join soybean research and Extension specialists from land-grant universities across the country as they host the webinar series, "Science for Success: Notes From the Field."