• A legacy of sustainability: Stolk Brothers and Koppert’s shared vision

  March 17, 2025

  transition to biological control hasn’t always been smooth. “We’ve tried all kinds of methods—some worked, some didn’t. I remember one experiment with a [...] with bugs ,’” Pieter recalls. “But fast forward 30 years, and now you can’t imagine horticulture without biological pest control.” A partnership rooted [...] crucial. “People still associate clean-looking plants with quality, but they don’t realize that a chemical-free plant is actually the healthier choice. If a predatory

• Wheat

  January 1, 1970

  About Wheat ( Triticum spp., most commonly T. aestivum ) is a cereal grain, but botanically a particular type of fruit referred to as caryopsis. Wheat

• How to protect bumblebees in cold

  January 1, 1970

  average 24-hour temperature is at least 15 ºC, you can ensure that there won't be any issues with the foraging activity of the bumblebees, leading to efficient [...] bumblebees. Sometimes, worker bumblebees may get lost through the vents and won't be able to return. To mitigate this, consider using netting whenever possible

• Powdery mildew

  January 1, 1970

  yet for all powdery mildew fungi and especially in greenhouse crops they don’t play a role in the epidemics. Fungal spores germinate on the leaf surface and [...] than a few hours. Powdery mildew spores, either ascospores or conidia, don’t need nutrients or water for germination. In general, the development rate of

• The Trianum and Vidi Parva Foundation

  February 27, 2019

  Beneficial Microbes Trianum is a registered biofungicide containing T. harzianum T-22. It protects crops from soil-borne diseases ( Pythium, Fusarium and [...] Parva work together to optimise root establishment, and Trichoderma harzianum T-22 colonisation. Repeated research and field trials have demonstrated the

• Trianum effectively controls Pythium in cucumber

  January 1, 1970

  started using Trianum-G in 2020. Based on the fungus Trichoderma harzianum T-22, the product colonizes the plant’s root system and keeps pathogenic fungi [...] lost up to 50% of production on the affected mats. It all adds up, and I don’t want to be faced with another situation like that.’ The crop receives 20 hours

• Cerall Brochure

  January 1, 1970

  Variation between trials is expressed as standard error: untreated ±0.6 t/ha; Cerall ±0.6 t/ha. 0 Untreated Cerall Chemical reference Average number of winter [...] future-proof solution against seed-borne diseases Improved yields Cerall doesn’t only protect your wheat, rye and triticale crops from seed-borne diseases such [...] ±9%; Cerall ±0.7%; reference ±0.2%. Cerall improves yields 4.75 4.50 Yield (t/ha) 90 4.25 4.00 0 Untreated Cerall Cerall seed treatment improves grain

• Personal message to our customers

  April 8, 2020

  turbulent times we reach out to you. Because, without you the World wouldn’t have fresh and healthy vegetables, fruit and flowers. Especially in a time

• Limonica strong contender against persistent thrips

  September 15, 2025

  with supplemental feeding. A. limonicus egg laying and predation capacity on T. parvispinus larvae A. limonicus egg laying and predation capacity on S. dorsalis [...] potential of Limonica against other thrips Although most data currently focuses on T. parvispinus and S. dorsalis , Limonica ’s biology suggests potential effectiveness

• Fusarium head blight or scab

  January 1, 1970

  infection is from this inoculum or from infected seed. Infected seed doesn’t germinate well and seedlings die, causing irregular crop density. The foot