Skip to main content

Garden & Yard Issues

All Garden & Yard Issues Content

Green leaves with notches along the edges

What Is Feeding on My Lilac Bushes?

There have been multiple reports of mysterious defoliation occurring on lilac bushes.The defoliation is often described as notches showing up around the edges of the leaves, resembling the edge of a saw blade.

ALT TEXT: Left: Brown moth with light markings on the wings. Right: Green caterpillar with a white line on the side of its body on a green leaf.

Cabbage Loopers Are Eating My Veggies

Cabbage looper caterpillars have been spotted in South Dakota gardens. Like their name suggests, cabbage loopers primarily feed on cabbage as well as broccoli, cauliflower, kale, radish, turnip and other cruciferous crops.

Orange beetle with black stripes and a red head on a green leaf.

Blister Beetles Causing Problems in Gardens

Typically, we don’t see a lot of issues with blister beetle feeding in gardens. However, when they show up, blister beetles can rapidly defoliate plants.

Left: Yellow beetle with black spots present on a green leaf. Right: Red beetle with black spots.

Argus Tortoise Beetle: No, It’s Not a Lady Beetle

Every summer, we receive reports of what looks like a large yellow lady beetle, except that they are defoliating certain plants. It isn’t a lady beetle, it’s the Argus tortoise beetle.

Left: Red larvae with black spots and black head on green leaf. Right: Orange beetles with white elytra with many black lines on each side.

Colorado Potato Beetles Causing Defoliation on Potatoes

Last week we received calls about insects feeding on potato plants. The culprit was the Colorado potato beetle, which is a major pest of potatoes.

Four green caterpillars feeding on kale.

Imported Cabbage Worms Are Chewing up My Garden!

One of the worst things to observe in your garden are caterpillars heavily defoliating your plants. But unfortunately, that’s exactly what the imported cabbageworms (cabbage white) caterpillars do.

Sideview of cut zucchini showing a small white caterpillar with a black head.

Squash Vine Borers Strike Again: This Time They’re in the Produce!

The larvae of the squash vine borer can wreak havoc on squash plants by boring into the stems and slowly killing the plants. Unfortunately, they’ll do even more than that. They will also invade the developing produce.

Mosquito with darker coloration and mosquito with white band on proboscis.

Know Your West Nile Virus Vectors

In some areas of South Dakota, recent precipitation has led to an increase in mosquito activity. To reduce the chances of contracting West Nile Virus, it is important to understand the behavior of the mosquitos capable of vectoring it.

Woody looking zucchini plant stem.

Watch Your Squash! Squash Vine Borer Moths Are Active.

Each year vine crops, including squash, zucchini and pumpkin plants, fall victim to squash vine borer larvae feeding inside their stems.

Brown caterpillar with tan head capsule and 3, light-tan stripes running along its back.

Monitor Lawns and Gardens for Bronzed Cutworm Activity

Bronzed cutworms can be an issue for lawns and gardens in South Dakota. In grass, bronzed cutworms will feed and leave small brown circular patches. Large populations of bronzed cutworm can result in severe lawn injury.