Biological pest control is the way of the future using biomimicry to emulate what nature does. Why genetically modify when we can just learn from nature how it’s already being done, and has been doing it for millions of years. Or in other words, why reinvent the wheel?

Mycology is also a great example of such and Paul Stamet is, and has been, doing some great work. If short on time skip to 13:00 for specific info about pesticides.
https://www.ted.com/talks/paul_stamets_on_6_ways_mushrooms_can_save_the_world

Mas info…insects are pretty cool too…
http://www.biocomes.eu/biological-control/biological-control-examples/