• Glume blotch

  presents itself as brown, elongated lesions with a light halo on leaves, stems and glumes. In the centre of the lesions, light-coloured translucent pycnidia [...] the whole leaf necrotic. On glumes, similar brown lesions with pycnidia and perithecia occur. Perithecia are also formed on dead glumes and stems. In [...] with chemicals that limit stem elongation when the lower leaves are infected and frequent rain is expected Be aware that in a crop with dense foliage, splash

• Blight of pepper

  cause root- and crown rot in potted plants. The small roots die and brown-black lesions [...] between 15 and 23 °C and higher water content than is optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs or in the soil in different stages: as

• Foot rot of cereals

  plant health and yield. Microdochium nivale thrives in cool, moist conditions, making it [...] group that causes seedling blight. Seedling blight causes pre- and post-emergence damping off. This can result in seedling death and poor [...] features for identifying the presence of the pathogen in affected cereal crops. How to

• Sciarid flies

  where they can cause enormous damage. Sciarid flies are usually found in damp, humid environments, and appear very commonly in greenhouses throughout [...] feeding on the roots. The larvae feed mainly on decaying plant material and on algae and fungi present in the soil. They, however, can also feed on [...] plant roots. The larvae can grow to 5 to 12 mm in length and 0.5 to 1.5 mm in diameter. They are legless and have a conspicuous

• Fit Roots for Plant Health Whitepaper - Koppert

  importance of chemical balance for plant health. Mineral nutrients are essential in agriculture and horticulture [...] solutions for food crops and ornamental plants. Together with growers and in partnership [...] vital ecosystems in a natural way is the basis for healthy crops and a balanced environment.

• Dwarf bunt

  only reach a fraction of their normal height. Spikes are generally broader and the glumes opened wider, than in plants infected with Tilletia tritici and Tilletia laevis Life cycle and appearance of Dwarf bunt Tilletia controversa survives as teliospores in [...] for germination is 3-8 °C and it takes three to ten weeks for germination. The

• Black leg of seedlings

  a ‘weak pathogen’, meaning that it can usually only affect plants that are in a sub-optimal condition or suffer from stress, caused for example by too [...] yellow, for example in flower bulbs. At first, the plants recover during the night, but later the plants wilt irreversibly. In potted plants the flower buds fall off. The side roots rot and very little

• Aphytis

  scale. After reaching adulthood, the adult wasp chews a small round hole in the scale cover and leaves. Aphytis melinus also exerts control by predation [...] . Use the lid, the 8 strips of green paper, the cotton wool on the bottom and the cup itself. Distribute evenly across the field. Release more doses in [...] the day of arrival. If necessary (in case of adverse weather conditions) the product can be stored for 1-2 days

• Limonica Ulti-Mite

  vaporariorum ) and tobacco whitefly ( Bemisia tabaci ). Crops Do not use in tomato . Mode of action Predatory mites multiply in the sachet and disperse into the crop over a period of several weeks. [...] performs effectively across a wide range of temperatures. It remains active and able to predate and reproduce in both cooler and warmer conditions. For

• Thripor-L

  Pests Various species of thrips . Crops Do not use in tomato. Mode of action The predatory bugs actively search for prey. With [...] on clean rock wool slabs, leaves and/or in application boxes (Dibox) Apply in groups of at least 50 insects in [...] pests and diseases in garlic, leek and onion Outdoor Experience Centre