The most effective method of controlling ectoparasites in farm animals is by regular

The most effective method of controlling ectoparasites in farm animals is by regular dipping of animals in a solution of pesticides. Ectoparasites are external parasites such as ticks, mites, and lice that live on the skin of animals and feed on their blood. These parasites can cause significant damage to the health and productivity of farm animals. Dipping is a method of controlling ectoparasites by submerging animals in a solution of pesticides. This method is effective because it covers the entire body of the animal and kills parasites that are not visible to the naked eye. Dipping also has a residual effect, meaning that it continues to protect the animal from parasites for a period of time after the treatment. Exposure of animals to sunlight is not an effective method of controlling ectoparasites because most ectoparasites prefer dark, moist environments and can survive in direct sunlight. Hand-picking of ectoparasites is not an effective method of control because it is time-consuming and can only remove visible parasites, leaving behind hidden ones. Isolation of infested animals is not an effective method of control because it does not address the underlying problem and can lead to the spread of parasites to other animals. In summary, regular dipping of farm animals in a solution of pesticides is the most effective method of controlling ectoparasites because it covers the entire body of the animal, kills hidden parasites, and has a residual effect.