Greenhouse whitefly

The larvae of whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and [...] the physiology of the plant, as a result of which growth is retarded. In full sunlight, leaves can wilt and fall. Such leaf damage can in turn influence [...] The consumption of plant sap and secreting of honeydew by whiteflies reduce the aesthetic value of crops. This is particularly important in ornamentals. Solution

American serpentine leaf miner

cosmetic damage. In tropical and subtropical areas this can lead to burning in fruit such as tomato and melon. Loss of leaves also reduces yield. In full-grown [...] toothed ovipositor, usually in the upper side of the leaf. Egg spots are oval and hard to distinguish from feeding spots. The larvae of Liriomyza trifolii are [...] crawls out of the leaf and falls to the ground. This occurs in the early morning. The larva crawls into the ground to pupate. A small percentage of the larvae

Tobacco aphid

) 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 [...] tobacco aphid ( Myzus persicae subsp. nicotianae ) is also encountered in a range of crops in greenhouses, such as sweet pepper, aubergine, chrysanthemum, and [...] therefore need to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit

Caterpillars

damage crops. Most of them feed on nectar. In contrast, the caterpillars have biting and chewing mouthparts and can devour large amounts of plant tissue. Many [...] that occur in greenhouses belong to the Noctuidae (the noctuid or owl moths), which is the largest of all lepidopteran families. Most adults of this family [...] underside of leaves. This causes a window effect where the epidermis of the upper leaf surface remains undamaged. Young caterpillars are often found in groups

Fall Armyworm

Recently, it has been found in Africa too. The caterpillars of fall armyworms feed on the leaves, stems and reproductive parts of more than 100 plant species [...] disperse in a radius of about 500 km (300 miles) before oviposition, which is sufficient for them to move from seasonally dry habitats to wet habitats in Central [...] the warm, humid evenings. Females lay their eggs in clusters of 150-200 and can lay up to 2000 eggs in a lifetime. Eggs are white, pinkish or light green

Two-spotted spider mite

such webs in which the mites live. The webbing and spotting on the leaves affects the appearance of the crop. This is of particular concern in ornamental [...] damage can also be seen on the upper surface of leaves as small yellow dots. The destruction of cells results in reduced photosynthesis, increased transpiration [...] eventually the whole plant, may die. In tomatoes and cucumbers, as little as 30% damage of the leaf surface can lead to loss of the crop. The nymphs and adults

General Conditions Koppert

compensation T of any damages suffered in any manner as a result of late delivery, excepting in cases of intent or gross negligence on the part of Koppert. The [...] payment of this interest. In addition, the Buyer is obliged to compensate Koppert in full for the losses Koppert suffers as a result of a fall in the exchange [...] damage as a result of loss of harvest, crop damage and/or damage due to deterioration of the structure of the soil. The payments of damages claimed shall

Broad mite

indication of an attack of broad mite ( Polyphagotarsonemus latus ), is the appearance of dark brown edges at the base of young leaves. In case of a mild [...] s latus) occurs in the tropics and in greenhouses in temperate regions. The broad mite (Polyphagotarsonemus latus) has a wide range of host plants, especially [...] caused by viruses. The typical pattern of damage consists of malformation and distortion of the above-ground growth of the plant. The mites show a preference

Spider mites and other mites

such webs in which the mites live. The webbing and spotting on the leaves affect the appearance of the crop. This is of particular concern in ornamental [...] far the most important species in greenhouses and many outdoor crops. Find solutions for mites in your crop Life cycle of spider mites Spider mite damage [...] damage can also be seen on the upper surface of leaves as small yellow dots. The destruction of cells results in reduced photosynthesis, increased transpiration

Green peach aphid

therefore need to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit [...] and appearance of green peach aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. When [...] families. Damage symptoms Of all the aphids , the peach potato aphid ( Myzus persicae subsp. persicae ) is the most important vector of viral diseases. It can