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Prevention and control

Mosquito repellents have some effect against black flies, but the effect will rarely last for more than a few hours. In the countries where black flies transmit serious diseases, the streams in which the larvae hatch are treated with insecticide. This, however, is not an approach that will be used in Denmark, where the black […]

Black fly bites

Only female black flies need blood, and they bites outdoors at all times of the day. Most black flies prefer other host animals; however, they bite humans if more suitable hosts are not present. When a black fly is about to suck blood, it is not easy to chase away. However, it is easy to […]

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