Companion planting is extremely important not only to gardeners, but also farmers. Companion planting is used by gardeners to create attractive borders or vegetable patches, which also helps them to use their space productively. Whereas, farmers use companion planting to help protect plants from pest infestation and can help them produce healthier and bigger yields.
An example of companion planting is:
Nasturtium are well-known to attract caterpillars, therefore, planting them around vegetables such as lettuce or cabbage protects them from damage, as egg-laying insects will tend to prefer the nasturtium.
Planting plants in close proximity together can help discourage pests, whilst encouraging prefatory insects to eat pests and encourages beneficial microorganisms. Organic pest control and biological pest control can be used as part of integrated pest management (IPM), which is greatly preferred by farmers as effort isn’t required as much as getting down to the root of the problem themselves. However, IPM can include the use of chemical pesticides that are not part of organic or biological techniques.