Which of the following is an example of cultural control?

Cultural control includes practices that modify the environment or agricultural practices to reduce pest populations and improve crop health. Soil fertility management and crop rotation are classic examples of cultural control because they aim at enhancing soil health and disrupting pest life cycles.

By managing soil fertility, farmers can ensure that plants are robust and more resistant to pest pressures. Crop rotation disrupts the habitat and food sources for pests, effectively managing infestations without relying on chemical controls or barriers. These practices promote a healthier ecosystem, leveraging natural pest resistance rather than mechanical or chemical means.

In contrast, spraying insecticides and physical trapping are forms of chemical and mechanical controls, respectively, while setting up barriers involves physical measures against pests, which do not fall under cultural practices aimed at improving agricultural conditions.