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

  March 17, 2025

  and uncle began working with Koppert, driven by firsthand experience of the impact of chemical pesticides. My father developed severe eczema from handling [...] but the essence of the company—the accessibility, the shared commitment to sustainable growing—remains.” Predatory mites: the backbone of a sustainable strategy [...] runs deep. “Our families have known each other for years. That foundation of trust made it easy to work together,” Pieter explains. “Koppert has grown

• Latest R&D data about the new strain of Myzus persicae

  February 9, 2025

  and combat this strain. Identifying the problem The first signs of the new stain of the green peach aphid surfaced when growers noticed that their standard [...] The emergence of the new Myzus persicae strain, informally called ‘Myzus 2.0’ is presenting significant challenges to growers worldwide. However, the dedicated [...] due to the pest’s unusual behavior. According to Onne Isfordink, a member of Koppert’s R&D team, ‘At the time, I was working in the department responsible

• Getting a head start - The importance of scouting in winter

  January 7, 2025

  Effective pest scouting involves a combination of visual inspections and the use of tools such as Koppert’s wide range of Horiver sticky trap products. Pherodis [...] especially the undersides of leaves and new growth, where pests often hide. Look for signs of feeding damage, excrement, or the presence of live pests. Soil and [...] yellowing and browning of leaf tips, and in a later stage crown and root rot. This gives distinctive brown patches across the field at the end of the winter. Many

• Be in control of mealybugs in citrus with Citripar and Cryptobug

  December 28, 2024

  many pest challenges to protect their harvests. One of these challenges is mealybugs . The dangers of mealybug damage Mealybugs pose significant challenges [...] attack second and fourth instars of female citrus mealybugs (Planococcus citri). Pupae develop in the mummified skin of the host and look like swollen mealybug [...] targets all stages of mealybugs, by consuming the mealybug entirely. 80% decrease with Citripar Recent trials highlight effectiveness of Citripar , especially

• Trianum - enhancing the health and strength of your spring transplants

  April 10, 2024

  the next crop cycle, we recommend the application of our biological fungicide Trianum. This T22 strain of Trichoderma harzianum swiftly establishes itself [...] ranging from 4 to 8.5. The positive effects of Trianum are noticeable right from sowing and during the initial weeks of plant development. This potent biological [...] year-round applicability, the enduring effects of this biological fungicide contribute to the long-term improvement of soil biodiversity. The outcome is robust

• 2023 trial season proves value of biological solutions in outdoor crops

  March 7, 2024

  opportunity to observe firsthand the effects of our products on their harvest. The power of trials With the arrival of the new year, almost all the results were [...] successes with the use of biofungicide Trianum in a wide range of crops. In fields treated with Trianum, there were few early symptoms of Rhizoctonia in potato [...] rid of wireworms is a multi-year process of restoring microbiological soil health. Even halfway through the growing season, there was evidence of our Casea

• Caterpillars: a growth explosion in the life of butterflies and moths

  June 30, 2023

  explosion in the life of butterflies and moths Butterflies and moths are fairly harmless insects, but their caterpillars can do a lot of damage and have a [...] eggs, often in groups on the leaves or other parts of plants. Some species separate them, some lay a row of eggs, while others deposit them in layers. Every [...] possible to salvage it As the caterpillars eat more, they grow out of their skins. The number of times the caterpillar sheds its skin can vary from three to more

• International Day of Plant Health: Protecting plant health with sustainable solutions

  May 12, 2023

  International Day of Plant Health: Protecting plant health with sustainable solutions On the 12th of May, the world celebrates International Day of Plant Health [...] based on the principles of natural balance and working with nature, rather than against it. One of our core solutions is the use of beneficial insects , such [...] are proud to be part of a global movement that recognizes the vital role that plants play in our lives. Plants are the foundation of life on Earth. They

• Creating a Culture of Safety: Koppert's Daily Health and Safety Practices

  April 28, 2023

  is part of our Social Sustainability commitment and one of our core values. ‘Making our Health, Safety measures more visible at Koppert is one of my missions [...] tion of occupational health and safety policies and strategies.’ ‘Our daily health and safety practices start with the training and education of our employees [...] to protect working environments and safeguard the safety and health of workers. One of our core values, ‘We Are Family’, came into its own during this crisis

• Tree specialist Wolterinck BV: biological control of the oak processionary caterpillar

  March 9, 2022

  and works on behalf of local authorities and governmental bodies. Co-owner and general director Ivo de Groot has witnessed the effect of Koppert’s nematode [...] egg casings begin to emerge. A second spraying may be needed, either of nematodes or of nematodes plus Bacillus thuringiensis -based products. ‘That is effective [...] least 30% of their leaf cover, Bacillus thuringiensis can also have a good combatting effect.’ Staunch advocate Wolterinck BV is a staunch advocate of Entonem