Substantial growth in the biologicals market has been driven in part by stricter pesticide regulations and by farmers who wish to produce higher yielding, more resilient crops. Biologicals represent a broad category of plant protection products, including biostimulants, biopesticides and biofertilizers.

There is growing interest among farmers on the use of biostimulants to boost crop yield and quality. But with curiosity comes skepticism, as limited data on their effectiveness is available. To dispel some of the mystery around these potentially powerful tools, we spoke with companies now developing biostimulants, researchers who aim to quantify their efficacy and farmers who have adopted them in crop management systems.