Continuous corn planting exacerbates resistance, while crop rotation helps manage rootworm pressure. Optimal Bt corn usage varies by region, with overplanting more common in western states.

Penn State researchers discover flavonoids make corn earworm larvae sick. New herbicides and a bioinsecticide show promise.

Widespread planting of corn hybrids designed to combat corn rootworm, the crop's most damaging pest in the Corn Belt, is reducing both the technology's effectiveness and some farmers' profits. The ...

2. Plan on more insects and disease pressure. With insects, the main challenge is corn rootworm. “If you’ve been using crop rotation to control your rootworm, you’ll need to add a trait or ...

“Through thinking outside the box, growers have found specialty crops that ... you don’t have a rootworm problem, you might not need an insecticide. “Fall-delivery corn contracts are rare ...

Widespread planting of corn hybrids designed to combat corn rootworm, the crop’s most damaging pest in the Corn Belt, is ...

Corn rootworm is one of the most devastating crop pests. Syngenta U.S. insecticide technical product lead Kevin Langdon says growers have relied heavily on traits to control rootworm larvae and ...

LANSING – The overuse of rootworm-resistant corn has led to the crop becoming less effective at controlling the destructive pest – a problem that could cost an estimated $1.6 billion in ...

This was especially true in eastern states, where crop rotation is more common and corn rootworm damage was lower in field trials. “If you think of a Bt hybrid as a finite resource, like a ...

This was the eighth episode of the 2025 Strategic Farming: Let’s Talk Crops! webinar series, which will continue through March. Two primary corn rootworm species including western and northern ...

Entomologist Krista Hamilton says insect surveys started this week, specifically with black cutworms that have likely blown ...