Context: The term "push-pull" was established in 1987 as an approach for integrated pest management (IPM). This strategy uses a mixture of behavior-modifying stimuli to manipulate the distribution and abundance of insects. "Push" means the insects are repelled or deterred away from whatever resource that is being protected. "Pull" means that certain stimuli (semiochemical stimuli, pheromones, food additives, visual stimuli, genetically altered plants, etc.) are used to attract pests to trap crops where they will be killed. There are numerous different components involved in order to implement a Push-Pull Strategy in IPM.

Question: What does IPM stand for?
Answer: integrated pest management

Question: How can the location and amount of insects be changed?
Answer: behavior-modifying stimuli

Question: What is one thing that can be used to pull pests?
Answer: food additives

Question: What is the name of the process by which pests are attracted and repelled using IPM. 
Answer: Push-Pull

Question: When was the term semiochemcial stimuli established?
Answer: Unanswerable

Question: What is one thing that makes people want to buy products they don't need?
Answer: Unanswerable

Question: What is easier to grow than normal plants?
Answer: Unanswerable

Question: What was created in 1987 to add to food so they will last longer on the shelf?
Answer: Unanswerable

Question: What do marketers use in commercials to get people to buy their products?
Answer: Unanswerable