Biopesticides are pesticidal substances produced by plants that contain genetic material added to the plant often through genetic engineering. Biopesticides also exist for the management of weeds, insects, and nematodes. Biopesticides are the biological agents used to control the pest population. It includes the use of botanicals, microbial pathogens such as fungi, bacteria, viruses and natural enemies of pests such as parasitoids and predators, nematodes and semiochemicals. Biopesticides are pesticides obtained from biological agents and organisms that are toxic to pests that invade crops. They work against various insects, weeds, and nematodes. These pesticides can be naturally occurring in the microorganisms or can be induced genetically in the plants through genetic engineering. Biopesticides have a range of attractive properties that make them good components of IPM. Most are selective, produce little or no toxic residue, and development costs are significantly lower than those of conventional synthetic chemical pesticides. Ecological Engineering (EE) for pest management is a new paradigm to enhance the natural enemies of pests in an agro ecosystem and is being considered an important strategy for promoting Bio intensive Integrated Pest Management (BIPM). Biopesticides use natural food chains to manage pests and diseases by taking advantage of predator-prey or parasite-host relationships. With this method, growers can sustainably manage crop pests without harming non-target organisms, the environment or humans.
Bio pesticides are living organisms which can intervene the life cycle of insect pests in such a way that the crop damage is minimized. The agents employed as biopesticides, include parasites, predetors and disease causing fungi, bacteria and viruses, which are the natural enemies of pests. In addition to preventing yield losses through pest and disease control, biopesticides improve environmental and human health by contributing to the reduction of chemical pesticides as well as by improving the quality of produce. Biopesticides are naturally occurring compounds or agents that are obtained from animals, plants, and microorganisms such as bacteria, cyanobacteria, and microalgae and are used to control agricultural pests and pathogens. Biopesticides are natural, biologically occurring compounds that are used to control various agricultural pests infesting plants in forests, gardens, farmlands, etc. There are different types of biopesticides that have been developed from various sources. Biopesticides are certain types of pesticides derived from such natural materials as animals, plants, bacteria, and certain minerals. As canola oil and baking soda have pesticidal applications and are considered biopesticides. Biopesticides are classified into three main categories: biochemical, microbials and plant-incorporated protectants.