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Looking Ahead: Corn Pests in 2020

January 28, 2020
This agronomic image shows corn rootworm

Corn rootworm

To optimize your management decisions going into this year, it’s good to have an idea of what you can expect to see. Chances are that the pests you saw in 2019 are going to make a reappearance in 2020. Let’s take a look at what the Wisconsin Pest Bulletin considered the key pests of the past year:

  • Swede Midge – Through infestation, this small fly causes distorted growth and damage to developing flower heads of brassica plants. It is very difficult to control once established.
  • Corn Rootworm – Through feeding, corn rootworm (CRW) larvae cause significant damage to corn roots. After 2 consecutive years of record-low averages, 2019 saw an increase in the number of reported beetles.
  • Brown Marmorated Stink Bug – This invasive bug feeds on a variety of host plants including fruits, vegetables and crops. The Madison, Milwaukee, Fond du Lac and Green Bay areas currently have the highest population records, but the pest is also expected to move into western WI.
  • European Corn Borer – This moth poses a risk to a variety of crops but especially corn, feeding on its silk, kernels, cobs and even sometimes stalks. Luckily, larval populations in 2019 reached the lowest level in recorded history.

Stay ahead of these and other pests in 2020 by investing in a proven insecticide. To manage pests like CRW, Syngenta agronomists recommend Force® 6.5G insecticide, which features a high-load granular formulation to provide proven control with enhanced convenience by requiring fewer stops to refill. Learn how to control CRW pressure in your fields with this new Force 6.5G Interactive Infographic.

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