• Onion fly

  wings. The eggs are laid by the female onion fly on the young leaves, necks of onion seedlings or in the soil close to the base of onion plants. The onion [...] pest pressure will remain low. Finally, the correct application of the nematodes is important. The soil must be damp, bright sun must be avoided, as well [...] even death of the onion plant. The roots and leaves are harmed when the onion fly larvae tunnel into the onion bulbs. This damage may decrease the quality

• Koppert appoints Hans Peters as Chief Executive Officer

  April 28, 2026

  period of two months, Paul Koppert and Henri Oosthoek will return to their roles on the Supervisory Board. As of July 1st, the Executive Board will consist [...] perspective, while also understanding the importance of our heritage and long-term vision. As we move into the next phase of our development, with a stronger [...] Koppert announces the appointment of Hans Peters as Chief Executive Officer (CEO), effective May 1st, 2026. Hans Peters brings extensive international

• Onion fly season 2024: Growers limit damage with beneficial nematodes

  September 18, 2024

  in the heart of the Noordoostpolder, the Koppert and Nemacontrol teams are taking stock of the growing season. The Noordoostpolder is known for the intensive [...] made. In a number of fields, the peak of the onion fly’s second flight, which by nature is exponentially higher than the peak of the first flight, was [...] ng the larvae. These nematodes are highly effective when applied in the right way and at the right time: not too early, not too late, and while the soil

• Biological crop protection: pest and disease control with minimal to no resistance risks

  August 6, 2024

  numbers with a high population of pests and diseases. The quicker the lifecycle of the pest or pathogen, the higher the likelihood for resistance. Why [...] Biocontrol is a natural form of pest and disease control, and the highly unlikely possibility of resistance is one of the key benefits of incorporating biocontrol [...] growing conditions. Trianum also reinforces the defence mechanism of the parts of the plant above ground, the so-called induced systemic resistance (ISR)

• Agro Care delivers the first Fair Trade tomatoes to the Dutch market

  June 13, 2016

  jobs which will bolster the economy of the region, we also want to be a good employer. This is why we pay good wages, provide employees with the opportunity [...] The Dutch tomato producer Agro Care brought the first Fair Trade certified tomatoes to the Dutch market last year. These tomatoes can be found on the shelves [...] to contribute to strengthening the regional economy of southern Tunisia. Philip van Antwerpen, one of the directors of Agro Care, explains, ‘Not only are

• Root rot of carrot

  dark brown to black lesions of various shapes. The lesions can merge and eventually cover the entire surface of the carrot. The affected areas are firm, shallow [...] merge, after which whole sections of the leaf will die off. The fungus appears to prefer older tissue. In the field, the disease is difficult to distinguish [...] is the only host plant of the fungus. How to prevent root rot of carrot Studies have shown that 3several key factors influencing the occurrence of blemishes

• Control of aphids in rose

  March 3, 2020

  into the greenhouse. You unscrew the top and remove the lid. Situate the Aphidend bottle in the crop and hang up the Aphiscout cylinder using the adhesive [...] results in the aphid further developing at the bottom of the crop where they are difficult to control with chemical agents. After three weeks, the aphids are [...] back in the top of the crop, which means that they need to be sprayed yet again. Simply use both products Aphids occurring lower in the crop can be effectively

• New parasitic wasp mix detects first signs of aphid infestation

  January 18, 2016

  they deal with the most commonly occurring types of aphid. This makes Aphiscout the ideal form of basic protection against aphids . The parasitized aphids [...] mummies.. Thanks to the felt NectarPad containing sugar water inside the container, the parasitic wasps can go into battle full of energy. The packaging features [...] features a simple hanging system, whereby the sticky outer layer of the label can be used to fix the container around a wire or a plant stem, for example

• Urgent need to accelerate the pace of change for sustainable cultivation

  April 4, 2018

  experts spoke on the future of sustainable agriculture and horticulture at the congress. Foodlog will establish an open sourced network of the kind Professor [...] supported by many of the delegates at the congress. Scientists, politicians, farmers, (non) governmental organizations and related businesses will be invited to [...] to significantly reduce the impact of agriculture and horticulture on the environment’, ‘How to accelerate the registration of new biological agents for

• Horiver Drystick

  tenuis White: Lygus spp. Mode of action Insect pests are attracted to the colour of the sticky trap and get caught in the glue. Presentation Polysterene [...] above the crop and adjust height when plants are growing Do not place traps in-between the plants as parasitic wasps will then also be trapped Remove the [...] both sides of the trap Replace the traps when largely covered by insects and/or debris Dosage For monitoring use one Horiver Drystick per 200 m 2 For trapping