David Holden, Plant Doctor

Third party research is crucial to making sure agricultural inputs work as advertised, and David Holden has been a trusted evaluator for many companies, including ours.

Holden Research and Consulting in Ventura County has worked with more than 100 crops, ranging from avocados to zucchini.

Holden has carried out at least 750 biostimulant-type trials in the last 20 years. He said biostmulants hold promise in fighting abiotic stress, in particular.

“I have quite often seen a reduction in the effect of various diseases, mites and insects when you use some of these products,” he said. “In other words, healthier plants are happier plants, and they live under stress situations better.”

Holden said his research helps show how biostimulants work, but growers would be interested in knowing why they are working. He said better answers to those questions would entice more farmers to try this newer technology.