Using a 'burn barrel' is a very effective passive method when protecting crops.

Answer 1

Yes, using a burn barrel is an effective passive method for protecting crops. Burn barrels are used to create a smoke screen that can help to repel pests and other animals that may be attracted to the crops. The smoke also helps to reduce the amount of moisture in the air, which can help to prevent the growth of mold and mildew. Additionally, the heat from the burning materials can help to kill off any insects or larvae that may be present in the area.