Crop pest protection is one of the world's most pressing issues. Synthetic insecticides are constantly employed to control insects; nevertheless, their toxicity puts the health of farm workers, livestock, and food consumers at risk. Because of their ecological side effects and low cost, botanical pesticides have garnered renewed study in response to the detrimental effects on human health. The use of plant compounds (flavonoids, essential oils, glycosides, alkaloids, fatty acids, and esters) with anti-insect properties is reviewed here, along with their value as a substitute for chemicals that are employed in various insect removal scenarios, such as growth retardants, repellents, feeding deterrents/antifeedants, attractants, toxicants, and chemosterilants. Botanical pesticides are safe, residue-free food sources that only harm targeted insects?they do not eliminate helpful natural adversaries. As a result, we advise employing botanical insecticides in conjunction with an integrated pest control approach to significantly decrease the usage of synthetic insecticides.