Which of the following is a proper management option for corn nematodes?

Maintaining good weed control is a proper management option for corn nematodes because weeds can serve as alternate hosts for nematodes, allowing their populations to increase in the field. By controlling weeds effectively, you help to limit the nematode population's ability to survive and reproduce. This practice reduces the overall pest pressure on the corn crop and contributes to healthier plants, leading to better yields and crop performance.

In contrast, ignoring soil test recommendations would not provide the necessary information about the nematode levels or the overall health of the soil, making it difficult to implement effective control measures. Planting corn continuously in affected fields can exacerbate the problem as nematodes thrive on corn, leading to diminishing returns and increasing plant stress over time. Applying pesticides indiscriminately can lead to environmental concerns, resistance development, and potential harm to beneficial organisms, further complicating pest management in the long run.