Chlorpyrifos is effective against a wide range of pests, including aphids, caterpillars, beetles, and mites. It is known for its systemic action, meaning that it can be absorbed by plants and distributed throughout their tissues, providing long-lasting protection against pests. However, chlorpyrifos has been the subject of controversy due to its potential health and environmental risks. It is highly toxic to humans and other animals, and exposure to high levels can cause a range of health effects, including nausea, dizziness, respiratory problems, and even death. It has also been linked to developmental and neurological effects, particularly in children. Structural Formula: