• Potato

  second half of the 16th century. Potatoes as a food crop were introduced by the Spanish. Now this starchy, tuberous crop is an integral part of the world’s [...] tuberosum ) is used to refer to the plant itself or its edible tuber. The plant is an herbaceous perennial and came to Europe from Latin America in the second [...] world’s food supply and many people’s diet. In terms of volume, potato is the fourth-largest food crop in the world, after maize, wheat and rice. Potato plants

• Ephedrus cerasicola

  persicae on paprika, lasts 33.7 days at 15°C, about 21 days at 21°C,and 19 days at 24°C. The adult lifespan increases gradually from 2.8 days at 32°C, to 26.2 [...] emerges through a round hole at the rear of the mummy. In practice, mummies are often found on the plant, but also in hidden places such as on ropes, under [...] Ephedrus cerasicola is available at Koppert in Aphiscout . Aphiscout consists of Aphidius colemani , Aphidius ervi , Aphelinus abdominalis , Praon volucre ,

• Cauliflower

  broccoli and consists of white, flowering meristem. Only the cauliflower head is eaten, this white flowering part is at times referred to as ‘curd’. [...] various cultivars, but are all members of the species Brassica oleracea. The cauliflower plant is an annual plant that reproduced by seed. The cauliflower [...] Brassica oleracea of the genus Brassica which is part of the family of Brassicaceae . Broccoli, Brussels sprouts, cabbage, collard greens and kale (collectively

• Green peach aphid

  persicae ) is an important insect pest in sweet pepper, tomato, cucumber and many other greenhouse crops. The aphid may originate from Asia, where its winter-hardy [...] important vector of viral diseases. It can transmit at least 100 different viruses and is thus rightfully feared by many growers. Nymphs and adults extract nutrients [...] from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation

• Tomato looper

  three pairs of prolegs, instead of the normal five and therefore the caterpillar moves with the same looping motion as an inchworm (geometrid). The cocoon [...] Mediterranean and northern Africa. The larva is highly polyphagous and feeds on plants of over 20 families, among them crops such as cauliflower, corn, crucifer [...] soybean, potato, strawberry, banana, sweet pepper and tomato but also chrysanthemum and geranium. An annual migrant from southern Europe, the golden twin-spot

• Municipality Venray: biological control of oak processionary caterpillars

  political agenda, as well as being an important social issue.’ Entonem makes a big difference According to Bergeijk, the results have been generally positive [...] Municipality of Venray. ‘We use nematodes at locations in outlying areas where there might be protected species of butterfly and moth. The major benefit of Entonem [...] In the Municipality of Venray a third of the tree stock in the area, some 11,000 trees, is oak. ‘We’ve been using Koppert’s nematode product Entonem as

• Aphilin

  agents, such as Aphidend . Storage time after receipt Apply as soon as possible after receipt. If necessary, the product can be stored for 1-2 days. Storage [...] euphorbiae ) and glasshouse potato aphid ( Aulacorthum solani ). It also has an effect on the peach potato aphid ( Myzus persicae ) and other aphid species [...] converts into a leathery mummy. The adult parasitic wasp emerges through a hole at the rear of the mummy. The first mummies are noticed in the crop around

• Mottled arum aphid

  sucking of plant sap. However, also at lower densities the aphids can damage plants because they produce large amounts of honeydew, which provides an excellent [...] growth of black sooty mould. Large areas of mould covering the leaves can reduce photosynthesis and also result in an unattractive plant with a much lower [...] Immature Neomyzus circumflexus are usually the same background colour as their parents, but they lack the characteristic black markings.

• Wheat

  aestivum ) is a cereal grain, but botanically a particular type of fruit referred to as caryopsis. Wheat originates from southwestern Asia, or more specifically [...] east of the Mediterranean. The wheat plant is an annual plant which is sown either in spring or autumn. The plant flowers from about the end of May to the [...] beginning of June. This flowering period is rather long (usually lasting longer than a week), because not all flowers of one single plant open at the same

• Roots Growers positive about Mycotal against whitefly

  Mycotal is cold-tolerant and works at temperatures starting at 5°C, it can be applied effectively even at lower temperatures. Read more about Mycotal [...] cultivation to be as organic as possible, and we’ve seen how Mycotal really helps us to achieve that.’ So says Sam van der Knaap, who is responsible for [...] lighting) and another covering 8 hectares (crops under artificial lighting). The second site, located in Zevenhuizen, covers 11 hectares. As organic as possible