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Natural Pesticides
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Just like conventional farmers organic farmers also have to deal with weeds and insects. But, to tackle these issues they use natural pesticides rather than chemicals to manage pests.
Natural pesticides are pesticides made by organisms normally for their own defense against insects and disease organism or are derived from natural sources such as a mineral or plant.

There are four types of natural pesticides and below you'll find simple explanations about each type.

Biochemical – Biochemical pesticides are pesticides that can disrupt the mating behavior and control the insect population. Pheromones are one form which is naturally sourced or manmade.

This is a non-toxic mechanism of controlling pests. Conventional pesticides are generally synthetic materials that kill the pest. Biochemical pesticides comprise substances that interfere with mating as well as various scented plant extracts that attract insect pests to traps.

Microbial – As the name suggests microbial agents are derived from microorganisms such as bacteria, fungi, algae, naturally occurring viruses or protozoans. They work by either introducing disease to a particular insect population, produce a toxin or limit reproduction. Milky spore is an example of this sort of natural pesticide.

Botanical – Botanical pesticides are natural pesticides derived from plants that possess naturally occurring defensive properties. Nicotine, Neem, Rotenone, Sabadilla and Pyrethrins are all derived from plants. Pyrethrins, for instance, come from the chrysanthemum plant and are effective on flying insects and to flush out larvae and grubs.

Mineral – Mineral-based controls include sulfur and lime-sulfur. Both are sprayed to control common insect pests.
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