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Content by Amanda Bachmann

White butterfly with black markings on wings, resting on a green leaf.

Cabbage White Butterflies Are Here!

Keep an eye out for cabbage white butterflies in your garden. These butterflies lay eggs on the underside of the vegetable leaves. Once the eggs hatch, their caterpillars feed on cabbage, broccoli, Brussel sprouts, cauliflower, kale, turnips and radishes.

Two, dark green aphids on a bright green leaf.

Small Aphid Populations Observed in Wheat

This week we received the first report of aphids in wheat for the 2021 season. The populations won’t be increasing rapidly until the daily temperatures warm up, but it is still a good idea to scout fields and determine if aphids are present.

Two photos of alfalfa weevils during different lifecycle stages. The left is the larva stage and has a longate, green larvae that looks like a caterpillar with white stripe running down the body and brown h

Alfalfa Weevils Are Active, and It’s Time to Scout

Scouting and managing alfalfa weevils when they reach the determined thresholds can prevent yield loss and encourage healthy regrowth of infested alfalfa stands.

Numerous small black beetles feeding on a green leaf.

Flea Beetles Already Active In Gardens

It may seem early, but flea beetles are already active in gardens in South Dakota. Adult beetles feed on leaves and stems, and their feeding will leave behind a multitude of small, irregular holes or pits.

Gray caterpillar with dark markings, white splotches and a white stripe running down the middle of its back.

It’s Time to Scout Alfalfa for Cutworms

One of the earliest insect pests that can be found in South Dakota’s alfalfa fields are army cutworms. Injury from cutworms can sometimes be overlooked until large patches of an alfalfa field have been “cut.”

Top: Army cutworm caterpillar. Bottom: Pale western cutworm caterpillar.

Monitor Wheat for Early-Season Cutworm Activity

It's finally warming up in South Dakota, and insect activity in wheat fields will be increasing. For wheat, a couple of early-season pests that may already be active are the army cutworm and the pale western cutworm.

Four common South Dakota ticks: American dog, Rocky Mountain wood, blacklegged and Lonestar.

Be On the Lookout for Ticks

Ticks are one of the first pests to show up during spring. Learn some common ticks to watch out for in South Dakota, along with tips for preventing bites and removing ticks from your skin and clothing.

Dirt patch in the center of a pasture caused by white grub feeding

Do You Have True White Grubs in Your Pasture or Rangeland?

Grub damage to pastures and rangeland is often observed in South Dakota. From past observations, some of the heaviest infestations in the state are located near the Missouri River.

Rows of empty white, plastic pesticide containers.

New Training Options Available for Pesticide Applicators in 2021

January 07, 2021

Join us for more information on the pesticide applicator training in 2021.

Tiny reddish-brown mite on a green leaf.

What Are Those Little Red Mites on My House?

The periods of unseasonably warm weather, especially in Western South Dakota, have temporarily brought several insects and other arthropods out of their winter hiding places. One of the arthropods getting attention lately has been the clover mite.