• Common cockchafer

  feeds on roots of grasses and clover. The adults feed on the leaves of trees, mainly on oak, maple, beech and plum. Life cycle and appearance of Common cockchafer [...] European beetle of the genus Melolontha, in the family Scarabaeidae. Damage symptoms The common cockchafer ( Melolontha melolontha ) does most of its damage [...] below the elytra. When just laid, the oval eggs of the common cockchafer ( Melolontha melolontha ) are 2 x 3 mm, but they increase in size by absorbing

• Large blackberry aphid

  blackberries. Damage symptoms High populations of large blackberry aphids can reduce yield. Life cycle and appearance of Large blackberry aphid Aphids have a complex [...] skin, betraying their presence in the crop. Wingless females of the large blackberry aphid are 2.6-4.1 mm long, pale to yellowish green with long antennae [...] complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis

• Orius laevigatus

  systems. Both adults and nymphs of Orius laevigatus are voracious predators, adept at piercing and feeding on the soft bodies of their prey. The predatory bug [...] range from 0.5-10 per m2/release. Releases should be repeated once or twice. Consult a Koppert advisor or a recognized distributor of Koppert products for [...] conditions for use of Orius laevigatus Optimal temperatures for Thripor-L are above 20°C (68°F), lower temperatures slow down the development of Orius laevigatus

• Pear psylla

  appearance of Pear psylla Adults pear psyllas are 2-3 mm long and orange red to blackish. They have white, longitudinal stripes on the back of the thorax [...] bark of pear trees. The adults become active in spring and start to feed on young leaves and flowers. Eggs are deposited in crevices of the bark of twigs [...] season may affect the harvest of the next year by weakening or killing fruit buds. Pear psyllas excrete large amounts of honeydew. Sooty moulds often grow

• Chrysoperla carnea

  honeydew and most will fly out of the greenhouse. Life cycle of Chrysoperla carnea You can recognize the different life stages of the green lacewing, Chrysoperla [...] s. The larvae of green lacewings are particularly effective predators. The green lacewing Chrysoperla carnea is used for the control of the following pests: [...] behaviour of Chrysoperla carnea Lacewing larvae search for prey randomly on the plant. Their efficiency is seriously impaired by the presence of leaf hairs

• Buckthorn-potato aphid

  transmission of viruses. Life cycle and appearance of Buckthorn-potato aphid Aphids have a complex life cycle, with both winged and wingless forms of adults [...] n distribution and is a major pest of potatoes, where it also transmits viruses. It also attacks a large number of other crops, for instance sweet pepper [...] betraying their presence in the crop. Wingless females of the buckthorn- potato aphid are 1.1-2.4 mm long and bright pale green to yellowish green. The

• Capirel

  temperature for 30 minutes Empty the contents of the sachets into a bucket containing at least 2 litres of water per sachet (water temperature: 15-20°C/59-68°F) [...] box. On average product can be stored for 2-3 months. Storage temperature Refrigerate at a temperature of 2-6°C/35-43°F in a ventilated refrigerator/cold [...] pour the contents of the bucket into the half-filled spray tank (except when tank mixing with a compatible product) Maintain agitation of mixture in the tank

• FAQ Spidex Vital

  colour. This takes 1-2 days. 2 2. Application Why does it have a different colour than the Spidex I’m used to? During production of Spidex Vital the predatory [...] koppert.com 1. Changes of Spidex What is the difference in the product presentation? Spidex Vital consists of all mobile stages of Phytoseiulus persimilis [...] control of spider mites. What obstacle did Koppert overcome to produce this product, I have been told it was near impossible? After years of research

• World Food Day 2020

  October 16, 2020

  well-being of the ecosystem. There's still a lot of research to be done. 'At Koppert, we are aware of the enormous potential that the invisible world of bacteria [...] their health. People were reminded of the role that food plays in their resistance to disease. Within days of the outbreak of COVID-19, buying patterns began [...] are becoming increasingly critical of the use of chemical agents and that is why we are increasing the production of microbiological solutions worldwide'

• Circular scale

  spots with paler margins, on both surfaces of shaded leaves of the host plant. Life cycle and appearance of Circular scale Female nymphs and adults have [...] tropical and subtropical parts of the world, mostly in association with the citrus industry. In more northern countries of its range, it occurs in greenhouses [...] stems and trunks, and may cause yellowing of leaves, premature leaf and fruit drop, and stem dieback. First signs of an infestation are dark-purple to red