• Consumers

  Every day, Koppert helps growers and farmers around the world to combat pests and diseases in a natural and sustainable way. In this way, we hope to make [...] species of parasitic wasps, predatory mites, bugs and beetles , gall midges, and lacewings. Visit our YouTube channel to see how natural enemies attack their [...] beneficials and pollinators, microbial products such as bacteria and fungi form a third pillar for the sustainable production of plants and crops. Even

• Cottony soft rot

  easily be seen with the naked eye and look like rat droppings. The symptoms may occur on stems but also on leaves, fruits and pods. Root infection often leads [...] wilting and death of plants. Life cycle and appearance of Cottony soft rot Cottony soft root ( Sclerotinia sclerotiorum ) overwinters as sclerotia and mycelium [...] in dead and living plant material in or on the ground. Sclerotia germinate at temperatures between 4 and 26 °C with an optimum between 13 and 15 °C. G

• Onion thrips

  throughout the world. It is found outdoors on many plants and particularly damaging on onions, leek, and in greenhouses on cucurbits, tomato, sweet pepper, eggplant [...] carnations, bulbs and many others. Damage symptoms Thrips cause damage to plants by piercing the cells of the surface tissues and sucking out their contents [...] Life cycle and appearance of Onion thrips Onion thrips (Thrips tabaci) develops in six stages: egg, two larval instars, prepupa, pupa, and finally the

• Cotton aphid

  making the crop and its fruit sticky. Black fungal moulds ( Cladosporium spp.) grow on this honeydew, contaminating fruit and ornamental crops and rendering [...] production. Life cycle and appearance of Cotton aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in [...] temperature can be much smaller (from 0.9 mm), and yellow or cream-coloured. Cotton aphids have red eyes and relatively short antennae.

• Onion

  mostly handled as an annual and harvested at the end of its first production season. Onions are popular and therefore cultivated and used for cooking all around [...] chopped, because it contains particular chemical elements that irritate the eyes.

• Bacterial wilt, brown rot

  well in water and in many different soil types and on alternative hosts like weeds. It invades the plants through wounds or stomata and then spreads into [...] pathogenic bacterium. It is a soil-borne disease and colonises the xylem, causing bacterial wilt and brown rot in a very wide range of potential host plants [...] potato, field symptoms of Ralstonia solanacearum are wilting and yellowing of leaves and stunted plants. Inside, vascular browning is common with bacterial

• Western flower thrips

  vegetable and ornamental crops in greenhouses, and on various weeds. It is an especially significant pest in cucumber, sweet pepper, eggplants, and many ornamental [...] surface tissues and sucking out their contents, causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black dots of [...] developing plant tissues such as growing tips and flower buds. When these tissues develop further, the leaves and flowers can appear grossly deformed. Severely

• Mushroom

  whites, crimini, and portobello. Many other mushroom varieties are also commercially available as growers and breeders search for new and unique tastes for [...] by criteria that include absence of poisonous effects on humans and desirable taste and aroma. Most mushrooms sold in supermarkets have been commercially [...] above ground on soil or on its food source. Edible mushrooms are the fleshy and edible fruit bodies of several species of macrofungi (fungi which bear fruiting

• Tobacco whitefly

  appearance of chlorotic patches, yellowing, fruit and leaf fall and misshapen fruit. Life cycle and appearance of Tobacco whitefly The tobacco whitefly [...] insecticides and its propensity for the transmission of viruses. Damage symptoms The larvae of whitefly need a lot of protein for growth, and thus consume [...] retarded. In full sunlight, leaves can wilt and fall. Such leaf damage can in turn influence the development of fruit and lead to a reduction in yield. The honeydew

• Broad mite

  but is slightly smaller and has only three pairs of legs. The emerging adult mite is roughly 0.2 mm long, oval and broad, and pale yellow or yellow-green [...] peppers, but also aubergine, tomato and cucumber. Additionally, many ornamental crops such as azalea, begonia, gerbera and cyclamen are also affected. Outside [...] are species that feed on fungi, algae, plants, as well as insect and mite predators and parasites. Those living on plants can cause considerable damage