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

  March 17, 2025

  to partner with Koppert is the company’s reliability and dedication to growers. “Koppert is more than just a supplier; they’re a partner in our journey [...] that a chemical-free plant is actually the healthier choice. If a predatory mite leaves behind some residue, it’s proof that biological control is working—but [...] plants and a more sustainable growing process. The road to chemical-free horticulture Looking ahead, Pieter sees a future where horticulture is entirely

• Cerall.. a powerful weapon against Fusarium, Tilletia caries and Septoria nodorum

  July 13, 2021

  under abiotic/biotic stress This is a great beginning for a healthy, flourishing and resilient crop, and is the perfect starting point for better production [...] money. Dosage Cerall is used at the rate of 10 ml/kg of seed. Directions for use can be found on the packaging. Application Cerall is a ready-to-use formulation [...] to ensure a precise application, thereby avoiding underdosing, for example. Koppert B.V. is not liable for any loss of quality if the product is stored for

• Vidi Fol (Fortafol)

  from 0.5-3 litres/ha Applications should be repeated a number of times Consult a Koppert advisor or a recognised distributor of Koppert products for advice [...] drenching equipment. Application as drench or via irrigation system: A separate tank/container is recommended for the proper preparation and application of the [...] countries the product is sold under the old name Fortafol Vidi Fol can cause damage to young plants. Test the sensitivity of the plants on a small scale, prior

• Towards a chemical-free future in agriculture: The vision of grower Koen

  l and organic is actually quite pleasant," he explains. He emphasizes that his approach stemmed from both practical considerations and a conscious choice [...] decided to find a balance between both approaches. This way of working allows him to gain experience in using biological crop protection . As a result, he acquires [...] acquires a lot of knowledge and is prepared to fully transition to biological crop protection when the government decides that certain traditional methods

• Veni Calcium

  from 2-5 litres/ha Applications should be repeated a number of times Consult a Koppert advisor or a recognised distributor of Koppert products for advice [...] Calcium provides a direct source of calcium to the plant which can easily be taken up. Crops All crops. Mode of action Veni Calcium is applied as foliar [...] foliar fertiliser, bringing the calcium quickly where it is needed. The calcium in the product can easily be taken up by the plant. Pack size 5 and 20 litre

• Vidi Terrum

  from 3-5 litres/ha Applications should be repeated a number of times Consult a Koppert advisor or a recognised distributor of Koppert products for advice [...] plant canopy. Application as drench or via the irrigation system: A separate tank/container is recommended for the proper preparation and application of the [...] plant with extra energy for the formation of fruit, tubers or bulbs. Energy is provided by the free L-amino acids in the product. Plants can take up Vidi

• Vidi Funda

  may develop fungal growth. Under aerobic conditions this is a sign that the substrate biology is active and becoming more resilient The fungus will disappear [...] substrate Applications could be repeated for certain crops Consult a Koppert advisor or a recognised distributor of Koppert products for advice on the best [...] microbial population, and release the minerals into the surrounding soil. It is this gradual decomposition that supports and develops the microbial life and

• Vidi Parva

  plant canopy. Application as drench or via the irrigation system: A separate tank/container is recommended for the proper preparation and application of the [...] from 3-5 litres/ha Applications should be repeated once Consult a Koppert advisor or a recognised distributor of Koppert products for advice on the best [...] herbal scent. Content 1% tryptophan and other free amino acids in herbal extract. Preparation Shake the container well before use Fill the application tank

• Biological seed treatment

  bacteria, as well as plant extracts and algae extracts. Biological substances are applied to the seed in a powder form or as a liquid. An even layer covers [...] products ( Cerall , Cedomon , Cedress) have a clear effect against pests or diseases (biotic stress). What is biological seed treatment? Biological seed [...] microbials depending on the organism: Biological seed treatment acts as a biostimulant: a treated crop becomes stronger and grows better; The treatment enhances

• Tobacco aphid

  matt, never glossy. Winged individuals have a brown-black head and thorax and a reddish abdomen. There is a dark brown spot on the abdomen and several [...] East and is a key pest of tobacco crops in both the United States and South America. The tobacco aphid ( Myzus persicae subsp. nicotianae ) is also encountered [...] symptoms Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise