• Cotton bollworm

  length and have a wingspan of about 40 mm. The grey-green males are smaller. The forewings are edged with a line of black spots, and the hindwings in both [...] and a diameter of about 0.5 mm. They are at first a shiny yellowish white, with their colour changing to brown just before the larvae emerge. The cotton [...] brown. Full grown larvae are 30 to 40 mm long. The first instars are the most mobile, and move like loopers. The caterpillars are often aggressive and c

• Nothing beats original

  . Choosing the right predatory mite solution to control a pest infestation is contingent upon various factors such as the type of crop, the specific pest [...] stories Dive into the rich history and innovative spirit behind Koppert’s predatory mite solutions. Since 1967, we have been at the top of our game helping [...] with our unmatched portfolio of predatory mites . Uncover the untold stories behind this track record and gain insights into the passion and dedication that

• Angular leaf spot

  used, they are translucent. When conditions are humid, a viscous bacterial exudate forms on the underside of the leaf. This exudate changes to a white film [...] visible on the upper side of the leaf as irregular spots which are first reddish brown and then become necrotic. The foliar symptoms are the most important [...] important, but also all types of vascular tissue of the crown can be infected, creating a look similar to that of a Phytophthora fragariae infection. Life cycle

• Limonica

  Push the centre of the cap to open the dosage hole Carefully sprinkle material on leaves Make sure the material remains on the leaves for at least a few [...] until control is achieved. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for your situation. [...] Pests Larvae of various species of thrips (first and second larval stages); eggs and larvae of greenhouse whitefly ( Trialeurodes vaporariorum ) and tobacco

• Bacterial wilt, brown rot

  show signs of wilting during the day which may disappear in the early stages of infection. Under conditions favourable for the bacteria, the whole plant [...] is a plant 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 [...] s roots on the stem. The vascular stem tissue is coloured brown and when the stem is cut, bacterial slime oozes from the wound. This is the way to distinguish

• Early blight

  occur at the side of the stem. Life cycle and appearance of Early blight From the primary infection of leaves, Alternaria solani can spread to the flowers [...] spores surviving in the soil are the main source of infection. Especially wheat and barley reduce the number of surviving conidia in the soil. Use resistant [...] humidity (RH) of over 90% or when the leaves are wet. Small differences in optimum temperature occur between species, but in general the risk of Alternaria

• Thripex

  Application Turn and shake the bottle or bucket gently before use Bottle: Push the centre of the cap to open the dosage hole Bucket: Use a spoon to distribute [...] should always be adjusted to the particular situation. Start introduction as soon as the first pest mites are detected in the crop. Introduction rates typically [...] be repeated if necessary. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for your situation.

• Obscure mealybug

  covered with a thicker layer of wax, the filaments around the body are longer (20-50% of the body size) and the two tail filaments are always markedly longer [...] appearance of Obscure mealybug Mealybugs get their name from the fact that the body of the females from the third nymphal instar onwards are covered with a white [...] spp .) are often found growing on this honeydew. Additionally, the white, waxy secretion of the mealybugs, reduces the ornamental value of the affected

• Phytophthora blight

  fungal growth on the leaves. The centre is grey-brown with a light-green edge. On the stem, elongated brown lesions occur, usually circling the stem. On potato [...] through the skin. The Great Famine was a period of mass starvation caused by this disease which ravaged potato crops throughout Europe during the 1840s. [...] cells which are resistant to desiccation) or mycelium. Zoospores are formed from the overwintering structures which infect the host. Zoospores are spores with

• Botrytis

  cinerea ) is part of the foot rot complex, which causes rotting of the foot and may cause death of the plants. In cucumber and tomato the fungus causes lesions [...] compounds that kill the plant cells and then uses the content of the plant cells as nutrients. On the infected area, new spores are formed within a few days. Under [...] leaves on the stem once, especially in the autumn, because from these leaves the stems are infected, possibly killing the entire plant maintain a higher RH