Pest control measures should focus on all of the following EXCEPT:

Pest control measures are critical in maintaining a safe and hygienic environment, especially in food handling establishments. Keeping doors and windows open is not conducive to pest control because it allows insects and rodents to easily enter the premises. Effective pest control relies on creating barriers to limit the entry of pests, and maintaining an environment that is not inviting to them.

On the other hand, regular cleaning schedules, proper waste management, and sealing cracks and openings are all vital components of a comprehensive pest management plan. Regular cleaning helps eliminate food sources, which deters pests, while proper waste management prevents accumulation of refuse that attracts them. Sealing cracks and openings reduces potential entry points, thereby minimizing the chance of infestations. Together, these strategies help create an inhospitable environment for pests, unlike the practice of keeping doors and windows open.