• Radish

  This plant was already domesticated in Europe in pre-Roman times. Radish comes in several varieties that all vary in flavour, colour, size and time it takes [...] the world. The seeds are used to produce oil. Other varieties are developed for sprouting and their roots and leaves are consumed either cooked or cold. [...] components that are produced by the plant, namely glucosinolate, myrosinase, and isothiocyanate. Radish is now produced and consumed in all parts of the

• Circular scale

  has been dispersed widely in tropical and subtropical parts of the world, mostly in association with the citrus industry. In more northern countries of [...] of its range, it occurs in greenhouses. In addition to citrus, it occurs on many other plants. Damage symptoms Chrysomphalus aonidum has a preference for [...] humid environments. In citrus, it tends to prefer the lower and central parts of mature trees. Circular scale prefers the leaves, but in high infestations

• Boisduval scale

  three species of Diaspi s are very similar in their appearance and damage symptoms. Here, the Boisduval scale is described in more detail, as it is the [...] Boisduval scale, Diaspis boisduvalii , occurs throughout the tropics, and in greenhouses in more temperate climates. It is very polyphagous and can be a pest of [...] Boisduval scales are normally found on the leaves and stems. Toxic saliva injected while feeding causes necrosis of tissue at the feeding site. In orchids, this

• Pepper

  pepper and hot peppers in jalapeno and habanero. The pepper plant is native to tropical America. Pepper plants are perennials, but are typically grown as summer [...] greenhouse technology has allowed for an increase in per crop harvest from 2-3 months in the field to 8-9 months in a greenhouse environment. [...] summer annuals. Pepper plants are propagated by seeding direct into the soil or by transplanting seedlings in a greenhouse environment. Plant height can

• Black bean aphid

  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 [...] cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with unfertilized [...] presence in the crop. The black bean aphid is dark olive green to black with black bands across the back. The two cornicles (or siphunculi) are short and

• Black currant

  hand or by machine. The berries are extremely rich in vitamin C and polyphenol phytochemicals. Nowadays, black currants are extensively cultivated, both on [...] both central and northern Europe and northern Asia. The plants grows well in damp and fertile soils. During summer, clusters of small and glossy black

• Chili pepper

  d) plants. The plant’s flowers are white and have a greenish white or greenish yellow corolla. The plant’s berries are very small (10–20 millimetres (0 [...] (0.39–0.79 inch) long and 3–7 millimetres (0.12–0.28 in) in diameter) and acrid, their shape is ellipsoid-conical to lanceolate. The fruit (the peppers) [...] usually develop from a pale yellow to a bright red when ripe. Varieties can come in other colours as well.

• Carrot

  hardy biennials and are grown as annuals. Carrots can vary greatly in colour, shape and size. The shorter carrot types grow well in heavy soil, the longer [...] and comes in a variety of colours, ranging from the regular orange to black and purple, but also red, yellow and white. The carrots which are produced nowadays

• Fruit grower uses Natupol Tripol for outdoor pollination

  apple orchard in early spring. ‘Although the weather has been unpredictable these last few years, we make sure to place our order for the hives in good time [...] together with his brother and nephews on their fruit company, Verstegen VOF in Opijnen, Gerlderland. Six years ago, they introduced Natupol Tripol bumblebees [...] bumblebees for optimal pollination of their apple and pear orchards. Situated in the Betuwe fruit growing region of the Netherlands, the 80-hectare orchard

• Ervibank

  plants from the box and place it on the rock wool in the basket Place the basket in direct light, preferably in a spot where it can remain for 10-12 weeks Fit [...] and reproduce on monocotyledons. As most cultivated crops in greenhouses are dicotyledons they are not attacked. Storage time after receipt Apply as soon [...] temperature 5-8°C/41-47°F. Storage conditions Store in a dark place. In case of excess of condensation in the box remove lid.