• Tetrapar

  Bactericera cockerelli ). Mode of action Adult female parasitic wasps parasitize nymphs of the fourth and fifth instar of psyllid. Additionaly, host feeding [...] occurs. Appearance The eggs of the parasitoid are covered with a mucilaginous substance and are attached to the body wall of the psyllid nymph. The larvae [...] Curative Rate: 1/m 2 Heavy Curative Rate: 10/m 2 Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for

• Tobacco aphid

  Life cycle and appearance of Tobacco aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour [...] matt, never glossy. Winged individuals have a brown-black head and thorax and a reddish abdomen. There is a dark brown spot on the abdomen and several [...] probably evolved from the peach potato aphid in the Far East and is a key pest of tobacco crops in both the United States and South America. The tobacco

• Phytoseiulus persimilis

  other prey. Feeding behaviour of Phytoseiulus persimilis Phytoseiulus persimilis feeds on all stages of spider mites , but has a preference for eggs. The predatory [...] per day. Because the development rate of the predatory mite is roughly twice that of the spider mite, the number of predatory mites increases rapidly, and [...] usually deposited close to, or in a spider mite colony. They are approximately twice the size of spider mite eggs and a transparent light pink when freshly

• Green peach aphid

  malformations of the growing tips. Life cycle and appearance of green peach aphid Aphids have a complex life cycle, with both winged and wingless forms of adults [...] native, however it is now a pest with a world-wide distribution. The green peach aphid ( Myzus persicae subsp. persicae ) is a particularly polyphagous [...] glossy. Winged individuals have a brown-black head and thorax and a yellow-green to green or even reddish abdomen. They have a dark brown spot on the abdomen

• Cannabis aphid

  described in 1860, the cannabis aphid ( Phorodon cannabis ; a.k.a. bhang aphid or hemp aphid) is a very new pest to North America. It was first seen on cuttings [...] offspring. Newborn nymphs will typically reach maturity within a couple of weeks, and adults live up to a month. Outdoors, as the days shorten in late summer/early [...] states and parts of Canada. The cannabis aphid closely resembles the hop aphid ( Phorodon humuli ), to the point that microscopic analysis of the head is required

• Corn rootworm

  with a peak between the end of June and the middle of July. The adults may mate several times during their lifetime, and females lay an average of 400 eggs [...] abortion and, in the case of heavy infestations, significantly reduce the number of seeds. During the milk and dough stages of maturity, the adults may [...] continues until the begin of July, with the presence of larvae peaking around the middle of June. The whitish-coloured larvae move around in the soil, feeding

• Natutec biocontrol application devices

  technology! The Natutec product portfolio offers a broad range of application devices for the dispersal of beneficial organisms over crops. Each Natutec solution [...] technology. Endorsed by Koppert Natutec is a product brand of Koppert. We specialize in the production and supply of biological control products, including [...] right system depends on the specific needs of your operations, particularly the surface area and layout of your growing environment. Select the system

• Municipality Enschede: Entonem nematodes against oak processionary caterpillar

  The Municipality of Enschede started using nematodes for the first time in the spring of 2021 to try to halt the spread of the oak processionary caterpillar [...] manager of the oak processionary caterpillar for the Municipality of Enschede. ‘We use Koppert’s nematode product Entonem in locations where we find a range [...] caterpillar. The municipality’s built-up area has a total of 22,000 oak trees. In the past, the municipality only extracted the nests. But as Petra Klein Breukink

• Mottled arum aphid

  aphid, Neomyzus circumflexus , has a cosmopolitan distribution and a wide host range. In temperate climates it is primarily a pest in greenhouses where it attacks [...] they produce large amounts of honeydew, which provides an excellent substrate for the growth of black sooty mould. Large areas of mould covering the leaves [...] Damage symptoms Large colonies of mottled arum aphids can greatly reduce plant vigour and kill the plant through sucking of plant sap. However, also at lower

• European corn borer

  black head of the larva can be seen just before hatching. The eggs are laid in a mass and overlap like tiles on a roof. The average number of eggs per egg [...] General The European corn borer ( Ostrinia nubilali s), is a severe pest of maize and has also been reported to attack apple, strawberries, peppers and [...] Damage symptoms Horizontal rows of holes in the young leaves, caused by larval feeding, provide an early indication of European corn borer attack. Later