• General Terms and Conditions of Sale - Koppert UK Ltd.

  had been delivered in accordance with the Contract. 8.6 Where any valid claim in respect of any Goods which is based on any defect on the quality or condition [...] confirmed by the Company in Writing. 2.3 Any advice or recommendation given by the Company or its employees or agents to the Customer or its employees or agents [...] the Contract in accordance with its terms. 3.3 The quantity and description of and any specification for the Goods shall be those set out in the Company’s

• Lettuce

  family, Asteraceae. It is a hardy annual that is easy to cultivate and most often grown for its leaves. It is, however, often plagued on by a number of insect

• Bacterial canker of tomato

  years. On other fields on the same farm, no seed potatoes can be grown for one year after infection. Damage symptoms Clavibacter causes spots on stems, [...] infected propagation material. It spreads to other seedlings by touching the plants in greenhouse crops and by water in field crops, for example through [...] eradicate the infection. In tomato, growers must either destroy the infected crop entirely or, if the crop is old, only the plants in the infected area, with

• Boisduval scale

  Diaspi s are very similar in their appearance and damage symptoms. Here, the Boisduval scale is described in more detail, as it is the most important one [...] Diaspis boisduvalii , occurs throughout the tropics, and in greenhouses in more temperate climates. It is very polyphagous and can be a pest of orchids, palms [...] presence of the scales on upper and lower leaf surfaces, fruits, and stems of plants. On palms, Boisduval scales are normally found on the leaves and stems

• Green peach aphid

  excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky. Black fungal moulds ( Cladosporium spp.) grow on this honeydew, contaminating [...] important insect pest in sweet pepper, tomato, cucumber and many other greenhouse crops. The aphid may originate from Asia, where its winter-hardy host plant [...] occurs early enough in the season, the death of young plants. Retarded growth and defoliation reduce yield, Plant sap is rich in sugars, but has a low

• Macrolophus pygmaeus

  voracious predators, capable of feeding on various pest species. With its effectiveness in pest control and minimal impact on non-target organisms, the natural [...] well as the larvae of leaf miners . When the bug is present in a crop in large numbers, it can contribute substantially to the control of these pests. [...] to damage. In tomato there may be fruit deformations during setting, and in gerbera, misshapen flowers may appear. The use of this bug in gerbera is therefore

• Mealybugs and scales

  because of the sooty mould that grows on it. Ants are also attracted by the honeydew. In fact, the honeydew with its sooty mould is usually the first sign [...] mealybugs and soft scales also produce honeydew (on which moulds grow) resulting in considerable damage in ornamental and fruit crops and loss of value. Armoured [...] fruit are concerned, these often drop off; plant sap is low in proteins and rich in sugars. In order to gain an adequate intake of protein, mealybugs must

• Loose smut of barley

  growing tip and the seed primordia. It only becomes visible after head emergence. The teliospores that are formed on systemically infected seeds then infect [...] sp. hordei affects barley and can destroy a large proportion of the crop. It is also known as barley smut, or loose smut of barley. Damage symptoms Infection [...] during flowering and the infected seeds are the primary source of inoculum in the next crop. The fungus survives inside the seed and when the seed germinates

• Leaf stripe

  yield losses. Damage symptoms Symptoms first occur on the first, second and third leaf and subsequently on other leaves. Yellow stripes are formed at the base [...] this leads to the death of the leaf. The leaf splits at the end which makes it look shredded. This is typical for this disease. Infected plants may be stunted [...] The fungus spreads from the seed into the seedling. Conidia are produced on the infected leaves when humidity is high and wind-dispersed to neighbouring

• Goat moth

  of broad-leafed trees. It is most often found in birch, ash, willow and elm but can also attack fruit trees. It is widespread in Europe. Damage symptoms [...] long, dark brown, with spines on the abdominal segment. The moths fly at night in June or July and lay eggs on tree trunks in batches of up to 50. After the [...] feed on the wood most of the time hibernating in their galleries during the winter months. Pupation usually takes place just beneath the bark in a very