Final answer:
Electronic Insect Eliminators, or 'zappers', are devices that attract and electrocute flying insects, while pheromone traps use lures to attract and trap pests for population monitoring and control. While zappers protect surroundings and lower control costs, ultrasonic pest repellers have been found ineffective in controlled tests. Biological control methods like these are environmentally friendly and cost-effective.
Step-by-step explanation:
An Electronic Insect Eliminator, often referred to as an "insect zapper," is a device designed to attract and kill flying insects. It typically uses ultraviolet light to attract pests and then electrocutes them with an electric grid. This tool is a form of biological control that aims to protect surroundings and can help in lowering costs associated with pest control.
However, not all devices marketed for controlling pests are effective. For example, ultrasonic pest repellers claim to drive away rodents and insects by emitting sounds, but controlled tests have shown that rodents quickly learn the speakers are harmless and ignore them. This underscores the need for scientific evidence when evaluating pest control solutions.
In contrast, pheromone traps utilize sex or aggregating pheromones to lure and trap insects. A lure impregnated with pheromones is placed inside a conventional trap to capture pests like clothes moths. This method is often used for both monitoring insect populations and reducing them effectively.
Both the electronic insect eliminator and pheromone traps are parts of a broader range of biological control tools that have proven successful in managing insect populations and resistance, thereby preserving the environment and saving costs in comparison to chemical treatments.