Saturday, November 18, 2017

Control of Biting Insects on Pigs.

How to control Biting Insects on Pigs.Biting insects such as flies, mosquitoes, midges or sand flies and ticks can cause major economic loss to pig farmers. Irritation from biting flies and mosquitoes can cause skin lesions or allergic–type reactions in pigs. Some pigs need to be skinned at the abattoir. Paralysis ticks can cause deaths among piglets and illness in older pigs housed outdoors, resulting in major financial loss for the farmer. The Dipteran biting flies of most significance to pig farmers are March flies (Family: Tabanidae), stable flies (Family: Muscidae), biting midges or sand flies (Family: Ceratopogonidae) and mosquitoes (Family: Culicidae). Each type of fly has it own specific habitat but they share a similar life cycle – eggs, larvae or maggots, pupae and adult form. Mosquitoes go through four instars or moults in their larval stage before forming pupae. Biting flies tend to be day–time feeders and most active on bright sunny days whereas mosquitoes tend to be night–time feeders. The females are mostly the biters and they seek blood for breeding and egg production. The flies multiply in warm, moist conditions so late spring, summer and early autumn tend to be the problem periods. Populations can increase dramatically as seasonal conditions change. House and bush flies, which do not bite, can also be a major nuisance to pigs and should be controlled using the same techniques.

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