A legacy of sustainability: Stolk Brothers and Koppert’s shared vision
February 17, 2025
“Over time, we realized that’s not how biological control works best. Now, we take a proactive approach, maintaining a strong population of predatory mites [...] biological crop protection was both a necessity and a calling. “In the early 90s, my father and uncle began working with Koppert, driven by firsthand experience [...] foundation of trust made it easy to work together,” Pieter explains. “Koppert has grown tremendously, but it remains a family business at heart—focused on