Ethoprophos solution is primarily used as a soil-applied nematicide and insecticide to protect crops from nematode infestations and soil-dwelling pests. It is effective in controlling root-knot nematodes, cyst nematodes, and other harmful soil insects that damage the roots of plants. This solution is commonly applied to crops such as potatoes, bananas, sugarcane, and tobacco, where it helps ensure healthy root systems and improves overall crop yield. Additionally, it is used in integrated pest management programs to reduce pest populations in agricultural fields. Proper application methods, including soil incorporation, are essential to maximize its effectiveness and minimize environmental impact.