Reference · Pests

Biting midges (Ceratopogonidae)

Biting midges (Ceratopogonidae) are a family of tiny flies belonging to the order Diptera. Often referred to as "no-see-ums," these insects are significant agricultural pests primarily due to their role as vectors for livestock diseases and their ability to cause severe irritation and stress to grazing animals.

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Biting midges (Ceratopogonidae)

Taxonomically, they are classified within the suborder Nematocera. These insects are exceptionally small, typically ranging from 1 to 3 mm in length. Their size allows them to bypass traditional fly screens, making them particularly difficult to manage in both housing environments and open pasture settings.

The life cycle consists of four stages: egg, larva, pupa, and adult. The females of most species are obligate blood-feeders, requiring a blood meal to facilitate egg development. Larvae thrive in high-moisture environments, including muddy soils, decaying plant matter, and animal manure, which are common features in many agricultural landscapes.

The primary economic impact is the direct harm caused to livestock. Infestations result in decreased weight gain, reduced milk production, and allergic dermatitis. Furthermore, they are critical vectors for viral diseases such as Bluetongue virus and African Horse Sickness, which can lead to devastating losses in the livestock industry.

Effective management requires an integrated approach:

  • Drainage and landscaping to eliminate breeding sites near livestock housing.
  • Regular application of approved insecticides in known breeding areas.
  • Use of fine-mesh netting to exclude adults from indoor areas.
  • Monitoring population spikes using light traps to time preventative chemical treatments.