Could fungi be the best way for farmers to ward off pests?

Use of fungal pesticides is on the rise, and their popularity may continue to increase over the next few years.  

What are the pros?
Most obviously, fungal pesticides do not affect human, animal or environmental health in the way that synthetic pesticides do.  They can target specific pests, rather than eradicating all biodiversity in an area.  And since they are living organisms, they can evolve with the pest, preventing resistance. 

The cons?
As of right now, fungal pesticides are more expensive than synthetic pesticides, which is an automatic turnoff for farmers.  Their effectiveness can also be altered by environmental conditions, such as humidity and temperature, making them less dependable.

For more details on this topic, check out the original article on NPR.