• Asian citrus psyllid

  by the vectored disease. Damage symptoms The psyllid is a sucking insect that inserts its mouthparts into plant tissue to feed. Adults feed on young stems [...] when the insect is vector of the bacterium Candidatus Liberibacter asiaticus that cause the fatal citrus disease called citrus greening or huanglongbing (HLB)

• Green peach aphid

  plant sap and grow rapidly. When reproduction is sexual, the aphids lay eggs that overwinter. In greenhouses reproduction also takes place by parthenogenesis [...] on the abdomen and several transverse black bands across the body. Nymphs that develop into winged adults are often pink or red in colour.

• Black root rot of cucurbits

  light-brown. The lesions can be enclosed by pseudostromata: dark coloured tissue that looks like black stripes. The disease is usually restricted to a few of the

• Fusarium head blight or scab

  foot by overwintering inoculum. On the infected foot, conidia are produced that further spread the disease. Gibberella zeae (Fusarium graminearum ) primarily

• Black rot of carrots

  These spots can be distinguished by the dark and brown concentric rings that are caused by sporulation. Species may differ in specific symptoms. Life

• Citrus

  shaddock, widely cultivated for fruit or grown as an ornamental. It is believed that citrus plants are native to subtropical and tropical regions of Asia and

• Tropicals

  About The definition of ‘Tropical Plants’, are plants that grow naturally in a tropical climate. Tropical plant is a typical north American term, whereas

• Consumers

  bumblebee is a close relative of the honeybee. In 1987, it was established that bumblebees could prove extremely useful in greenhouses for the purpose of [...] store to order brochures and other promotional materials. Please keep in mind that the brochures and leaflets are geared towards professional growers. Go to

• Parasitic wasps

  What are parasitic wasps? Parasitic wasps are small insects that play a crucial role in natural pest control. They are called "parasitic" because they [...] fluids, which can be important for their reproduction. It's important to note that not all species of parasitic wasps engage in host feeding, and the primary

• Working at Koppert

  vacancies are preferably filled internally. Koppert feels it is important that its staff continue to develop and urges its employees to make use of internal