Protect small grains from hessian fly infestations

Sep 04, 2024
By Jean-Paul McDonald
Assistant Editor, North American Content, Farms.com

H2>Best practices for controlling hessian fly in wheat and barley crops

The Hessian fly, a tiny insect, poses a significant threat to small grain crops like wheat and barley. Despite being less prevalent in certain regions compared to others, their populations have been steadily increasing in recent years particularly in wheat or barley growing regions.

These flies lay eggs on small grain plants, and the hatched larvae feed on the base of the plant, hindering its growth and reducing grain yield.

To prevent Hessian fly infestations, farmers often plant their crops after the "fly-free date," a period when adult flies are inactive. However, it's important to note that these dates can vary depending on location and weather conditions.

Planting small grains after the fly-free date is an effective control method, as it ensures there are no young plants available for the flies to lay eggs on.

Additionally, planting Hessian fly-resistant varieties of wheat or barley can be a valuable strategy. While availability of these varieties may be limited in some areas, they can significantly reduce the risk of infestations.

Early planted small grain cover crops can also serve as breeding grounds for Hessian flies, leading to increased populations and subsequent infestations in later-planted fields. Therefore, it's crucial to be aware of this potential risk.

To protect your small grain crops from Hessian fly damage, it's recommended to consult with local agricultural experts for specific fly-free dates and recommendations tailored to your region.

By taking these preventive measures, farmers can ensure a successful harvest and minimize losses due to Hessian fly infestations.

For more information about the Hessian Fly, visit the Farms.com Field Guide: https://www.farms.com/field-guide/pests/hessian-fly.aspx

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