• Swirski Ulti-Mite

  of whitefly . Crops Do not use in tomato. Mode of action Predatory mites multiply in the sachet and disperse into the crop over a period of several weeks [...] swirskii is most effective at temperatures between 20 and 32°C (68 and 90°F). It is not effective at temperatures below 18°C/64°F. Amblyseius swirskii is sensitive [...] Sachets in cardboard box. Carrier Bran. Downloads Trial results in grapes Predatory mites whitepaper Predatory Mites Poster Application Hang sachets in sheltered

• Aphidius ervi

  Aphidius ervi is available in a bottle ( Ervipar ). Spread the material on rock wool slabs or in Diboxes Make sure the material remains dry and is not moved from [...] the parasitic wasp Aphidius ervi Aphidius ervi is a parasitic wasp species that plays a significant role in biological control of aphids . The natural enemy [...] repeated weekly during the period when aphid infestation is expected. Consult a Koppert advisor or a recognized distributor of Koppert products for advice

• Amazone Plants continues the path of organic cultivation

  netting at a good rate over a longer period. This means that there is always a strong population in the greenhouse crop and control of the thrips is maintained [...] turned out fine – the plants in 12 cm pots were sold in 14 cm pots in the summer, and the plants in 14 cm pots went to the buyers in 17 cm pots. The company [...] spring and in the autumn. Wim van der Meer explains, ‘Koppert is involved in a trial in which we are investigating whether Chrysopa eggs are effective at

• Caterpillars

  can rapidly decimate a plant. Very small caterpillars are not able to chew and therefore graze the underside of leaves. This causes a window effect where [...] beneficial nematodes in fruit orchards Target pests of beneficial nematodes in top fruits Target pests of beneficial nematodes in potato & outdoor vegetables [...] inconspicuously brownish are greyish. Adult butterflies do not damage crops. Most of them feed on nectar. In contrast, the caterpillars have biting and chewing

• Swirski-Mite

  between 20 and 32°C (68 and 90°F). It is not effective at temperatures below 18°C/64°F. Amblyseius swirskii is sensitive to relative humidity below 60% [...] larvae of various thrips species and eggs and larvae of whitefly . Crops Do not use in tomato. Mode of action Predatory mites use their piercing mouthparts to [...] are detected in the crop. Introduction rates typically range from 25-300 per m2/release. Releases should be repeated if necessary. Consult a Koppert advisor

• General Conditions Koppert

  6.6 I f the 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 [...] the losses Koppert suffers as a result of a fall in the exchange rate of the currency in which payment is made as compared to the euro, calculated from [...] deadlines. 5.5 he Buyer is not entitled to any claims against Koppert for compensation T of any damages suffered in any manner as a result of late delivery

• Aphids

  individuals. Potato virus Y (PVY) is transmitted by aphids in tomato in this way, as is the cucumber mosaic virus (CMV) in cucumber. How to get rid of aphids [...] the progeny of a single female is genetically identical to the mother. In other words, they are clones. Because there is no genetic recombination, different [...] the life cycle is termed holocyclic (complete). In greenhouses, however, the alternation of host plant and egg-laying may not take place. In this case, r

• Knowing & recognizing

  use of biological control is not a simple process, it has become a complex system in which many aspects need to be considered. The need for knowledge has [...] explains how they spread in the crop, the damage they can cause, and specific behavioural characteristics. Shop now Koppert - A knowledge company The use [...] find the best sustainable solutions. First published 25 years ago and revised in 2003, the latest edition comprises 443 pages, 700 photographs, and dozens

• Powdery mildew

  of powdery mildew in greenhouses, it is advised to first ventilate by only opening the windows on the lee side. Please note, this is not relevant for other [...] General Powdery mildew is a fungal disease that is caused by many different species of fungi such as Erysiphe, Podosphaera, Oïdium, Leveillula. Damage [...] powdery mildew is extremely sensitive to water and ‘hides’ on the underside of the leaves. Therefore, this is where the colonies mostly occur in these crops

• Leaf stripe

  The symptoms do not always occur together. Life cycle and appearance of Leaf stripe Pyrenophora graminea is monocyclic, which means there is only one disease [...] General Pyrenophora graminea is a disease of Barley that causes significant yield losses. Damage symptoms Symptoms first occur on the first, second and [...] disease cycle during the cropping season. The fungus is seed-borne and this systemic infection is the only source of primary infection. The fungus spreads