Abstract
Pesticides are categorized into different types according to their toxicity and environmental impacts. "Biorational" pesticides are pest control agents that are comparatively safe for humans and have a less negative impact on the environment. The classes of biorational pesticides comprise botanicals, microbial, minerals, and synthetic materials. Botanical pesticides are plant-derived materials, for example, ro-tenone, pyrethrum, sabadilla, and ryania. Microbial pesticides are prepared from mi-croorganisms such as fungi, bacteria, viruses, and protozoan or their by-products. Bacillus thuringiensis is a well-known microbial insecticide. Some mineral biorational pesticides are also there such as sulfur for the control of foliar diseases. Some low- toxic synthetics are also included in biorational pesticides such as soaps or fatty acids of potassium salts. They mostly have a more specified mechanism of action with a smaller target range of pests. Instead of entirely eliminating a particular insect, this new family of pesticides frequently aims to reduce its number to a controllable level. These chemicals offer a great deal of potential for replacing persistent conventional pesticides, demonstrating an excellent cost-benefit ratio, addressing environmental consequences, and maintaining food security in a secure environment.