What action could be considered an ineffective method for pest prevention?

Allowing food spills to remain is indeed an ineffective method for pest prevention, as it creates an attractive environment for pests. When food spills are left uncleaned, they provide a consistent source of food for insects and rodents, which increases the likelihood of infestations. Pests are naturally drawn to areas where food debris is present, so neglecting spills undermines all other sanitation efforts.

In contrast, implementing regular cleaning schedules, using food-grade pesticides, and ensuring proper disposal of trash are proactive strategies designed to reduce pest attraction and entry. Regular cleaning removes food residues and potential pest habitats, while proper trash disposal prevents the accumulation of waste that might attract pests. Using food-grade pesticides can also help control any existing pest populations without risking contamination of food products.