• Shore fly

  General Shore flies ( Scatella tenuicosta ) occur very commonly, often in the vicinity of water. They feed on algae. Other shore fly species have diverse [...] larvae of most species feed on rotting material. Shore flies are commonly found in greenhouses. Damage symptoms Shore flies ( Scatella tenuicosta) do not [...] plants directly, as they feed on green algae. However, they can transmit plant diseases and can be a nuisance to greenhouse works by their sheer numbers

• Carnation tortrix

  The carnation tortrix ( Cacoecimorpha pronubana ) is a Mediterranean species belonging to the family of Tortricidae . It occurs in the Middle East, North [...] Channel Islands as well as Madeira. It is polyphagous, observed on 160 cultivated and wild plant species – trees as well as herbaceous forms - of 42 plant families [...] families, and it is the major pests in carnation cultures throughout the Mediterranean region, particularly in Israel, Italy, France and Spain. In greenhouses

• Silver-Y moth

  General The silver-Y moth ( Autographa gamma ) is a migrant moth that appears in northern parts of Europe until November, migrating back to southern Europe [...] months. The moths can fly 2,000 to 2,500 km. In temperate climates, the species produces one to two overlapping generations, and it is the second generation [...] damage to agricultural crops, particularly brassicas, from August onward. The silver-Y moth ( Autographa gamma ) feeds on plants of 14 families and is sometimes

• Cotton aphid

  General The cotton aphid ( Aphis gossypii ) is an extremely polyphagous aphid found on more than 700 plant species. Crop plants attacked by this aphid include [...] plants such as chrysanthemum and kalanchoe. The cotton aphid ( Aphis gossypii ) is distributed throughout the world but prefers the warmer regions. It has been [...] been a pest in European greenhouses since the late 1980’s, particularly affecting cucumber. Damage symptoms The cotton aphid ( Aphis gossypii ) is an important

• Tobacco aphid

  tobacco aphid ( Myzus persicae subsp. nicotianae ) probably evolved from the peach potato aphid in the Far East and is a key pest of tobacco crops in both the [...] America. The tobacco aphid ( Myzus persicae subsp. nicotianae ) is also encountered in a range of crops in greenhouses, such as sweet pepper, aubergine, [...] balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early enough in the season

• Lyprauta

  General Larvae of the flies Lyprauta cambria, Proceroplatus trinidadensis and Lyprauta chacoensis (family Keroplatidae) have been associated with root [...] root damage in potted orchids, especially in greenhouses in the Netherlands. Dutch farmers call these larvae potworms, however, they should not be confused [...] potworms which are small earthworms of the family Enchytraeidae. Damage symptoms The symptoms are superficial damage on roots. Especially the root tips are

• Mottled arum aphid

  circumflexus , has a cosmopolitan distribution and a wide host range. In temperate climates it is primarily a pest in greenhouses where it attacks many [...] many ornamentals , including chrysanthemums, Begonia and Fuchsia, and also sweet pepper. Damage symptoms Large colonies of mottled arum aphids can greatly [...] 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

• Strawberry aphid

  Chaetosiphon fragaefolii , has a cosmopolitan distribution and is the most important aphid pest of strawberries. It can cause direct damage by feeding and transmits [...] symptoms Chaetosiphon fragaefolii is one of the most serious pests affecting strawberry plants. Direct damage is caused by the aphids sucking sap from the [...] reduces the yield and quality of fruit. The leaves do not become distorted but leaves and fruits quickly become sticky due to the honeydew the aphids excrete

• Blueberry aphid

  fimbriata or Ericaphis scammelli , is most likely of North American origin and was probably introduced into Europe with plant material. It feeds on blueberries [...] blueberries and is a vector of blueberry scorch virus. Damage symptoms Blueberry aphids live in dense colonies on young shoots of blueberry bushes and produce [...] amounts of sticky honeydew. The aphids spread blueberry scorch virus. This virus disease can cause severe yield loss. Life cycle and appearance of Blueberry

• Pear psylla

  The pear psylla, Cacopsylla pyri , is a widely distributed pest of pear in central Europe and can inflict serious damage in pear orchards. Damage symptoms [...] leads to growth inhibition and malformation of leaves and fruits. Heavy infestations can cause premature leaf fall and fruit drop. Flowers attacked by first [...] Feeding later in the season may affect the harvest of the next year by weakening or killing fruit buds. Pear psyllas excrete large amounts of honeydew. Sooty