• Aphidius colemani

  remains dry and is not moved from its introduction site for at least a few days The dosage of Aphipar depends on climate, crop and aphid density and should [...] wasps to track down and parasitize aphids , even when they are at low density. The behaviour of the female during egg-laying is typical of the Aphidiidae. [...] similar to that of Aphidius spp. The aphids do not die at once but usually continue to feed and secrete honeydew. Second and third instar aphids are preferred

• Beetles

  Coleoptera is the largest of all insect orders and displays an enormous variety of form, size and habit. A number of species are a serious pest in crops [...] species are very capable fliers but others cannot fly at all. Beetle damage Both larvae and adults of beetles can cause damage to crops. The larvae of some [...] Coleoptera, a well-known group of insects that are easily recognizable on account of their hard wing covers (elytra). With more than 350,000 known species

• Working at Koppert

  cooperation and respect for people and the environment is important. The company is developing fast, so we are keen to draw people who will play a role in its [...] vacancies are preferably filled internally. Koppert feels it is important that its staff continue to develop and urges its employees to make use of internal [...] internal and external training and courses. Our staff makes good use of these opportunities. At Koppert you work on your career.

• 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 [...] behaviour of Orius laevigatus Orius laevigatus is a predator feeding on thrips . The prey is pierced with the mouthparts and the body contents are consumed [...] They are also cannibalistic. In pollen producing plants, younger Orius nymphs are mainly found on the leaves, whereas older nymphs and adults are mainly

• Brown root rot, corky root rot

  disease causes more and more destruction of the root system and subsequent loss of vigour and further wilting. Life cycle and appearance of Brown root rot, [...] infecting tomatoes and aubergine. It causes brown root rot and corky root rot. Damage symptoms The first signs of this disease, are poorly looking plants [...] soil and in buried tomato roots as microsclerotia. The microsclerotia germinate and produce mycelium that in turn infect the roots of tomato and other

• Glasshouse potato aphid

  colour, and has an overall shiny appearance. Antennae are marked by a number of darker bands, and their length exceeds that of the body. The legs are also [...] anholocyclic (no eggs are laid) and holocyclic (winter eggs are produced) lifecycles. There is no alternation of hosts, and the two types of life cycles occur [...] growth above with lumpy leaves and curled leaf margins. The immediate effects of piercing by the aphids are visible in lower leaves in the form of yellow patches

• Swirski-Mite LD

  Pests Young larvae of various thrips species and eggs and larvae of whitefly . Crops Do not use in tomato. Mode of action Predatory mites multiply in the [...] humidity below 60%. Combined use Can be combined with Orius spp. and whitefly parasitoids. Do not combine with other generalist predatory mites ( Neoseiulus cucumeris [...] the sachet and disperse into the crop over a period of several weeks. Predatory mites use their piercing mouthparts to extract the contents of their prey

• Swirski-Mite Plus

  Pests Young larvae of various thrips species and eggs and larvae of whitefly . Crops Do not use in tomato. Mode of action Predatory mites multiply in the [...] humidity below 60%. Combined use Can be combined with Orius spp. and whitefly parasitoids. Do not combine with other generalist predatory mites ( Neoseiulus cucumeris [...] the sachet and disperse into the crop over a period of several weeks. Predatory mites use their piercing mouthparts to extract the contents of their prey

• Verticillium wilt

  Verticillium species are non-specific plant pathogens. Many species are saprophytes, V erticillium albo-atrum and Verticillium dahlia e are the most important [...] nematodes. The fungus then grows into the vessels of the plant and produces spores that are transported upwards with the transpiration stream. As a defence mechanism [...] dahlia causes verticillium wilt and early dying of potato. Damage symptoms Verticillium species mostly cause wilting of plants. The wilting starts at the

• Early blight

  three days later and sporulation within five days. Infection is both direct and through wounds and stomata. Spores are dispersed by wind and in some species [...] species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause primary infection of the leaves. Survival can be several [...] Alternaria causes early blight of potato and early blight of tomato, which presents itself as spots on leaves, petals and stems. These spots can be dis