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How to eliminate flies in chicken farms

May 30, 2025

Flies are very common in chicken farms, especially in summer. Flies not only affect environmental hygiene, but may also spread diseases, affecting the health and production performance of chickens.

For the fly control problem in large chicken farms, it is necessary to integrate multi-dimensional strategies such as physical prevention and control, chemical prevention and control, biological intervention and environmental management. The specific implementation plan is as follows:

1.Source control: feces treatment and egg blocking

‌Sealed fermentation method：

‌ After cleaning chicken manure every day, cover the manure pile with soil or plastic film and seal it for fermentation. Use high temperature (above 70°C) to kill eggs and pathogens and block the fly breeding chain15. On rainy days, yellow mud can be used to compact and cover to form a hardened layer to prevent maggots from drilling out.

‌Feces and urine separation treatment：

Use biological fermentation technology to separate feces and urine, increase the compost temperature to above 70°C, quickly inactivate eggs, and reduce the breeding environment for flies.

‌Auxiliary drying measures：

Sprinkle wood ash on the surface of chicken manure to absorb moisture and reduce the survival rate of eggs. Experimental data show that this method can reduce the number of flies by 70%.

2.Chemical control: precision medication and long-term management

‌Drug spraying strategy‌：

Starting from early March every year, spray pyrethroids or organophosphorus insecticides every 15 days, and then spray once a week, focusing on covering the feces area, feed troughs and corners.

‌Bait and poison rope application‌：

Putting baits containing stomach poison and contact killing effects (such as cyromazine) in fly active areas, or hanging fly poison ropes, can achieve a continuous fly killing effect of 15-30 days.

‌Feed additive intervention：

By adding fly killing ingredients (such as cyromazine) to feed, the drugs are excreted with feces to directly kill fly maggots, controlling fly hatching from the source.

3.Physical control: combination of barriers and traps

‌Enclosed facility construction：

Install sealed doors and windows, insect-proof nets and soft door curtains, set up shelves in the buffer zone to avoid dead corners, and block flies from entering the chicken house.

‌Trapping device layout‌ ：

Make your own sweet and sour liquid (a mixture of sugar, vinegar, and detergent) or hang fly-killing lamps to attract and kill adult flies, suitable for corners, passages, and other areas

4. Environmental optimization and biological intervention

‌Keep clean and ventilated‌ ：

Regularly clean the residue in the feed trough, adopt "small and frequent feeding" to reduce mildew, and use mechanical ventilation to reduce humidity and inhibit fly breeding.

‌Application of biological deodorant‌ ：

Spray biological deodorant containing active probiotics to reduce the source of attraction of fecal odor and improve the respiratory health of the chickens11.

‌Introduction of natural enemies‌ ：

Cultivate natural enemies of flies such as beetles and mites, or reduce the density of adult flies through natural predation such as spiders and geckos.

5. Monitoring and emergency plan

‌Regular detection of insect egg density‌ ：

Focus on monitoring the number of insect eggs in the feces area and around the feed trough. If it exceeds the standard, immediately strengthen sealing or drug intervention. ‌

Strengthen coverage during rainy season：

Increase the frequency of plastic film covering during rainy season to prevent rainwater from eroding and causing sealing failure.

Through the above comprehensive measures, the fly density can be significantly reduced, the risk of disease transmission can be reduced, and environmental protection and breeding efficiency can be taken into account at the same time.