• Verticillium wilt

  January 1, 1970

  to prevent Verticillium wilt Start with clean soil or substrate by heating it at a temperature if at least 65 o C for a minimum of 30 minutes Use clean

• Radish

  January 1, 1970

  comes in several varieties that all vary in flavour, colour, size and time it takes to mature. The vegetable has a particular sharp or sometimes pungent

• Woolly apple aphid

  January 1, 1970

  apple pest. It is probably of North American origin and has been distributed to other parts of the world mainly via infested apple rootstocks. It can occasionally

• Mealybugs and scales

  January 1, 1970

  defoliation. However, it is mainly the great quantity of honey-dew that causes the damage because of the sooty mould that grows on it. Ants are also attracted [...] attracted by the honeydew. In fact, the honeydew with its sooty mould is usually the first sign of the presence of this type of pest. Among ornamental crops

• Citrus mealybug

  January 1, 1970

  task is to fertilize the females and as soon as a male emerges from its cocoon, it goes in search of a female. A fertilized female lays several hundreds [...] produce little wax, so that the light yellow to pink body is visible through its waxy covering. There is often a darker longitudinal stripe running over the

• Pear

  January 1, 1970

  European or common pear is a perennial, deciduous tree and cultivated for its fruit. The tree grows small, white flowers (about 2.5 cm or 1 inch in diameter)

• Pollination checklist tomato

  January 1, 1970

  jaw on the flower (bite marks) turn brown within one to four hours and make it possible to check the bumblebees' work. A single visit results in the transfer [...] flower has been pollinated. The flower needs to have been pollinated before it closes. Depending on the conditions, a flower will remain open for one to [...] measures will be required such as active cooling. Position the hive so that it is easily visible both to the bumblebees and to people Ensure the hive is

• Grapes

  January 1, 1970

  Vitis vinifera grapes, but only a few play an important commercial role when it comes to the production of wine, but also table grapes. Still, cultivars of

• Fall Armyworm

  January 1, 1970

  is a polyphagous pest that is indigenous throughout the Americas. Recently, it has been found in Africa too. The caterpillars of fall armyworms feed on the [...] from seasonally dry habitats to wet habitats in Central America. This makes it possible for fall armyworms to spread over large areas rapidly. Adults fly

• Cotton aphid

  January 1, 1970

  gossypii ) is distributed throughout the world but prefers the warmer regions. It has been a pest in European greenhouses since the late 1980’s, particularly [...] The 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