A legacy of sustainability: Stolk Brothers and Koppert’s shared vision
March 17, 2025
didn’t. I remember one experiment with a garlic-based product. We applied it in the evening, and by morning, the entire greenhouse smelled like a giant shawarma [...] Pieter Stolk, the transition to biological crop protection was both a necessity and a calling. “In the early 90s, my father and uncle began working with [...] that’s not how biological control works best. Now, we take a proactive approach, maintaining a strong population of predatory mites throughout the entire