• Two-spotted spider mite

  spotting on the leaves affects the appearance of the crop. This is of particular concern in ornamental crops. Life cycle and appearance of Spider mite [...] to the host plant by feeding on plant sap. They mainly occur on the underside of leaves where they pierce the cells and suck out the contents. The empty [...] period of roughly equal duration can be distinguished. Eggs are usually found on the underside of leaves. They have an oval body that is rounded at the rear

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• Know Your Enemy - A closer look at Whiteflies

  August 14, 2024

  inside the plant, the tobacco whitefly spreads out over the plant in its entirety. The females lay their eggs on the underside of the leaves, just the same [...] remain there for the rest of their larval development. The fourth larval instar, when the red eyes of the adult whitefly become visible, is also referred [...] stimulates the development of the infestation. In addition, rain and wind are factors that affect outdoor areas, lowering the risk of infestation. The spread

• Southern European marshland pyralid

  caterpillars often stay in the lower strata of the crop, sometimes attacking the stem of the plant as well as the leaves. Late instar larvae burrow into soft [...] line on the forewing. The end of the remarkably long abdomen bends upward almost vertically, with the abdomen of males often being longer than that of females [...] surface of the body there are pairs of dark dots. The dark head is also conspicuous, as are the four dark dots behind the head capsule. There are 4 pairs

• Broad mite

  to the damage caused by viruses. The typical pattern of damage consists of malformation and distortion of the above-ground growth of the plant. The mites [...] appearance of Broad mite The life cycle of tarsonemid mites has the following stages: egg, larva, and adult. The larvae have three pairs of legs, adults [...] to cause the leaf to turn brown and curl up. A typical indication of an attack of broad mite ( Polyphagotarsonemus latus ), is the appearance of dark brown

• Impatiens thrips

  patches on leaves and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When [...] eggplants. It lives exclusively on the leaves and is often present on weeds in greenhouses. Life cycle and appearance of Impatiens thrips Impatiens thrips [...] specifically on the leaves. Eggs are deposited in the leaf tissue, while subsequent stages are found on the upper- and undersides of the leaf. Pupation occurs

• Koppert Kenya sponsors local soccer academy

  June 24, 2016

  to be part of it for a long time. He truly believes in the talent of the children at the Centre. We are therefore glad to join in and do what we can to [...] determination and teamwork can lead to success. The goal was to make an impact in the lives of children and youth of Eldama Ravine in Baringo County, Kenya, who [...] watchful eye of experienced trainers and coaches. However, over the years, the Centre has spread its reach to involve the children and youth in the local community

• Onion thrips

  black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations become serious [...] pupa, and finally the adult insect. The eggs of the onion thrips (Thrips tabaci) are laid in leaves, flower petals and in the soft parts of stalks. They are [...] cells of the surface tissues and sucking out their contents, causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black

• Partners with Nature

  April 5, 2016

  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 [...] matter what part of the world we operate, this goal remains the same. This clarity of mission crystallized in October in 2014, after almost 50 years of Koppert’s [...] direction as an organization a redefined mission was borne to channel the way: Koppert Biological Systems contributes to better health of people and the planet

• American serpentine leaf miner

  enter the plant tissue via the feeding spots. Life cycle and appearance of American serpentine leaf miner The life cycle of a leaf miner has the following [...] roughly one hour the larva crawls out of the leaf and falls to the ground. This occurs in the early morning. The larva crawls into the ground to pupate [...] intermediate forms of tunnelling between these ‘plate mines’ and normal mines, making it an unreliable criterion for the identification of the species. Indirect