• General Conditions Koppert

  conditions have been drawn up in both the Dutch and the English language. In case of any discrepancy between the Dutch and the English text, the Dutch text shall [...] agreement has been concluded, except in case the agreement has already been performed, in whole or in part, by Koppert. V1 6.2 I n case of liquidation [...] Buyer does not meet its payment obligation in full within the term referred to in article 6.1, the Buyer is in breach without any further notice of default

• Strawberry

  speaking, the strawberry is a so-called aggregate accessory fruit. This means that the fleshy, edible part of the fruit does not develop from the plant’s [...] so-called ‘seeds’ (achenes) that are visible on the strawberry’s skin, are in reality the ovaries of the flower with a seed inside. Recommended for you

• Stop the spread of Botrytis with NoPath

  March 26, 2025

  spreading and nip it in the bud? Preventing a humid climate is crucial here. If you have greenhouse crops, you can effectively stay in control and create [...] The situation is a little more complex in outdoor crops, as you have no control over the weather. Only by means of cultivation management can you get some [...] ’s ability to strike. The spores of Botrytis germinate easily and quickly in wet conditions and at high humidity. If the foliage is wet for longer than

• Knowing & recognizing

  giving you the ability to recognize the pest or disease you are up against by means of detailed illustrations and close-up photographs. The knowledge gained [...] find the best sustainable solutions. First published 25 years ago and revised in 2003, the latest edition comprises 443 pages, 700 photographs, and dozens [...] between pests, diseases and their natural enemies. It explains how they spread in the crop, the damage they can cause, and specific behavioural characteristics

• Thrips

  cause problems in agriculture and horticulture. Thrips are small insects (0.5-14 mm), with the largest species found in the tropics. In temperate regions [...] Biological control of thrips Thrips are among the most challenging pests in greenhouse and field crops. Their feeding and virus transmission cause leaf [...] actively control thrips larvae and pupae, while beneficial nematodes target pupae in the soil. Sticky traps and kairomones support early detection and population

• Biological seed treatment

  Biological substances are applied to the seed in a powder form or as a liquid. An even layer covers the whole seed. In this way, the beneficial ingredients are [...] availability of plant nutrients in the root system and increases nutrient uptake; The enhanced root and shoot growth means that the early growth rate is [...] boosted; Biological seed treatment reduces the use of agrochemicals which results in a lower exposure of growers to chemicals and lessens their impact on the

• Botrytis

  fungus in many environments. It survives in plant parts like bulbs and crop residues or as sclerotia (drought- and cold-resistant structures) in the soil [...] plants or plant parts in a closed plastic bag In tomato: prune with a knife and not by hand, to avoid rugged, irregular wound surfaces In cucumber: remove dead [...] lesion wilts and dies. In vegetables and strawberry, grey mould ( Botryotinia fuckeliana / Botrytis cinerea ) affects the fruit. In potted plants, the cuttings

• Damping-off

  aphanidermatum mostly occurs in young plants and damage is more extensive in young crops. Damage symptoms Pythium affects roots, in particular those of seedlings [...] General Pythium is considered a ‘weak pathogen’, meaning that it can usually only affect plants that are in a sub-optimal condition or suffer from stress [...] temperatures or sudden fluctuations in temperature. Pythium aphanidermatum mostly occurs at higher temperatures in the soil or irrigation water. Pythium

• Partners with Nature

  October 11, 2018

  operate, this goal remains the same. This clarity of mission crystallized in October in 2014, after almost 50 years of Koppert’s dedication to the production [...] action will allow us to do great things and in the process sustain a happy population and planet. By means of a holistic approach -combining knowledge [...] Contributing to the better health of the people and the planet, in partnership with nature That is the one reason the Koppert team wakes up excited every

• Mealybugs and scales

  fruit are concerned, these often drop off; plant sap is low in proteins and rich in sugars. In order to gain an adequate intake of protein, mealybugs must [...] scales also produce honeydew (on which moulds grow) resulting in considerable damage in ornamental and fruit crops and loss of value. Armoured scales do [...] sale, and the reduced level of photosynthesis in the leaves also reduces flower and fruit production; in ornamental crops, the mere presence of mealybugs