• Leaf stripe

  the number of kernels may be reduced and kernels may be brown. The symptoms do not always occur together. Life cycle and appearance of Leaf stripe Pyrenophora [...] Infection occurs between 10 and 33 °C. Infected seeds can look healthy and do not necessarily show symptoms of infection. Soil temperature during seedling

• Tropicals

  plants. Contrary to what most people expect, many of the tropical plants do not do well in direct sunlight and should be located in shadier environments.

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• Experience Centre

  Take a look inside a bumblebee hive and see these tireless workers do what they do best. Did you know that the vision of bumblebees differs vastly to that

• Predatory mites

  other beneficials, forming the foundation of many IPM systems. Which pests do predatory mites control? Predatory mites are known to control a variety of [...] frequency of releases. Video: How to use predatory mites How many predatory mites do I need? The dosage and frequency of predatory mites depends on climate, crop

• Black leg of seedlings

  in the absence of plants. Many species are entirely saprophytic, so these do not harm plants. How to prevent Black leg of seedlings Use resistant cultivars [...] cultivars Use clean planting material Ensure regular growth Avoid over-watering Do not provide excess nitrogen since this promotes the disease. In greenhouses:

• Beetles

  of aphids . Beetles undergo a complete metamorphosis, that is, the larvae do not resemble the adult at all, and must pass through a pupal instar before [...] biting mouthparts and mostly feed on the same food as the adults. The pupae do not make a cocoon and will already display many similarities with the adults

• Woolly apple aphid

  Sometimes a few wingless egg-laying females are produced in autumn but their eggs do not develop further. Adult viviparous (wingless) females of the woolly aphid [...] summer. Winged egg-laying females are produced in early autumn but their eggs do not develop. Contrary to the situation in America, South Africa, and Australia

• Damping-off

  in the absence of plants. Many species are entirely saprophytic, so these do not harm plants. How to prevent Damping-off Use resistant cultivars or graft [...] cultivars Use clean planting material Ensure regular growth Avoid over-watering Do not provide excess nitrogen since this promotes the disease. In greenhouses:

• Horiver Drystick

  sticks at max. 30 cm above the crop and adjust height when plants are growing Do not place traps in-between the plants as parasitic wasps will then also be [...] Drystick does not come off on your hands Horiver Drystick traps generally do not catch insects for as long as Horiver Wetstick as the glue gets saturated