When a farmer tries to eradicate snails from pastures, he is attempting to control
Answer Details
The correct answer is liver flukes. Snails are intermediate hosts of liver flukes, which are a type of parasitic flatworm that infects livestock such as cattle, sheep, and goats. These liver flukes can cause serious damage to the liver and other organs, and can even be fatal in severe cases. By eradicating snails from pastures, farmers can help control the spread of liver flukes and protect their livestock. Therefore, the farmer is attempting to control liver flukes by controlling the snail population.