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Yellow and black beetle on green soybean leaf.

Bean Leaf Beetles Are Active in South Dakota

It’s important to remember early season scouting for bean leaf beetle defoliation. At this time, overwintering bean leaf beetles reach the adult life stage, and they emerge in with an appetite.

White net covered in green larvae.

Alfalfa Weevil Activity Prediction Update: June 19, 2024

Across South Dakota, degree day estimates indicate that alfalfa weevil activity should be completed. However, our field observations this week suggest otherwise.

White, oblong flowers on tall stems and green grass surrounded by brown prairie soil

Native Plants to Know: Thimbleweed (Anemone cylindrica)

Anemone cylindrica (Ranunculaceae), also known as thimbleweed or candle anemone, is a perennial, herbaceous plant native to prairies and woodlands of central and northern North America.

Left: Fireweed growing in a clearing. Right: Purple loosestrife growing in a meadow.

Plant Look-Alikes: What’s the Difference Between Fireweed and Purple Loosestrife?

Fireweed and purple loosestrife are often confused with one another due to their similar appearances, but the two plants have dramatically different impacts on the environment. Learn some key characteristics to help tell them apart.

Two scans of older SDSU Extension publications from 1949 and 1959.

Revisiting Old Lessons in Corn Weed Management: 2,4-D and dicamba

What can past herbicide programs teach us about managing against herbicide-resistant weeds in corn today?

Dark green and tan curled caterpillars with an orange stripe along their sides.

Keep an Eye on Your Wheat: True Armyworm caterpillars may be present

Every year, true armyworm caterpillars pose a threat to South Dakota wheat fields, and they most frequently show up during the end of June and early July. However, strong southerly winds during the spring can cause populations to show up earlier.

Full plant profiles: Golden alexander and wild parsnip.

Plant Look-Alikes: What’s the Difference Between Golden Alexander and Wild Parsnip?

Golden alexander (Zizia aurea) is a striking native plant in South Dakota. However, another plant in this region often mistaken for golden alexander does not belong here and contains a harmful toxin.

Rose rust disease symptoms on the tops and bottoms of leaves.

Rose Rust

Common rust of roses is a fungal disease that is found throughout the United States. While hot and dry summers limit the prevalence of the disease, it surfaces when weather conditions are cool and wet.

A large group of youth in matching blue and yellow shirts pose. They are holding a South Dakota flag in front of them

SD team ties for 2nd at 4-H Shooting Sports National Championships

July 19, 2024

Thirty-five youth representing South Dakota State University Extension 4-H competed at the national championships from June 24-28 in Grand Island, Nebraska. The annual competition drew 708 youth from 40 states to demonstrate their abilities in archery and shooting across multiple disciplines.

Green alfalfa leaves turning yellow because of potato leafhopper feeding.

Potato Leafhoppers Becoming Prevalent

Potato leafhoppers are a migratory pest that impact South Dakota alfalfa each year. At this point in the growing season, they have become established and are now causing widespread issues.