Which turf grass pest is described as the most destructive in Kansas?

• A. Bluegrass sod worm
• B. Billbug
• C. Chinch bug
• D. Nematode

Answer: (A)

The key idea here is how much damage the pest can cause to bluegrass turf in Kansas and how quickly it can do it. Bluegrass sod worm (the larval stage of the sod webworm) chews on the leaves and crowns of bluegrass, producing large, irregular patches of dead or severely browned turf in a relatively short time. This makes it capable of wiping out sizeable areas before you even notice the problem, especially during hot, dry periods when the grass is stressed and more vulnerable. The damage often appears as thin, patchy turf that spreads as the larvae continue feeding, and because they feed low in the thatch and come out at night, they can fly under the radar until patches are well established. That combination—rapid, widespread destruction of the most common Kansas turfgrass and difficulty in early detection—is why bluegrass sod worm is described as the most destructive turfgrass pest in Kansas.

Other pests, like billbugs, chinch bugs, or nematodes, can cause serious damage too, but their impact is typically more limited in scope, more tied to specific grasses, or easier to recognize and manage before large areas fail.