There are several methods for controlling agricultural insects, including:

  1. Cultural methods: These methods involve modifying the environment to make it less favorable to insect pests. This can include crop rotation, intercropping, and planting trap crops.

  2. Biological methods: These methods use natural enemies of insect pests to control their populations. This can include the use of predators, parasites, and pathogens.

  3. Chemical methods: These methods involve the use of insecticides to kill or repel insects. This can include synthetic chemicals, as well as natural insecticides such as neem oil.

  4. Physical methods: These methods involve physically removing or excluding insects from the crop. This can include the use of screens, barriers, and traps.

  5. Genetic methods: These methods involve the use of genetically modified crops that are resistant to insect pests. This can include crops that produce their own insecticides or crops that are more resistant to damage.

It is important to use a combination of these methods, known as integrated pest management (IPM), to effectively control insect pests while minimizing the impact on the environment and human health.