• Koppert One

  Koppert One - Digital platform for biological crop protection Koppert One is your all-in-one digital platform designed to simplify and strengthen biological [...] make or break the success of biological control. With Timing Expert in Koppert One, you always know when conditions are right for foliar nematode applications [...] the Digital Assistant, Koppert One turns complex information into clear, actionable insights. This helps you optimize your Integrated Pest Management strategy

• Bacterial canker of tomato

  Solaneceaous crops can be planted for five years. On other fields on the same farm, no seed potatoes can be grown for one year after infection. Damage symptoms [...] only occurs in the second half of the season. The first symptoms are wilting of the lower leaves and subsequent expansion of the wilt upwards. Cutting the [...] brown and may merge. The leaves wilt and curl upwards, often starting at one side of the plant. They turn brown but don’t fall off. On stems and shoots light

• Black leg of seedlings

  infection is the easy stripping of the skin from the root cortex with a finger nail. Life cycle and appearance of Black leg of seedlings Pythium belongs to [...] ‘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 much [...] and very little of the root system survives. On the border between air and soil or substrate the plant turns brown. A typical symptom of a Pythium infection

• Pierce's disease of grapevine

  in olive. Damage symptoms Grapevines: Primary infection of leaves results in leaf scorch. Part of a green leaf suddenly dies and turns brown with adjacent [...] occur on the underside of the leaves. These lesions start out in a light-brown colour, turning to dark-brown or necrosis. Fruits of infected trees are much [...] foliage becomes thinner, but the trees don’t die of the disease. Olives: Scorch symptoms and desiccation of twigs and small branches occur on infected leaves

• Black rot of carrots

  case of black rot of carrots ( Alternaria radicina ) up to 8 years. Damage symptoms Black rot of carrots ( Alternaria radicina ) causes death of seedlings [...] appearance of Black rot of carrots Black rot of carrots ( Alternaria radicina ) is a seed-transferred carrot disease. The seeds are the main source of primary [...] death of seedlings. From the primary infection of leaves, this type of carrot disease can spread to the flowers (especially dangerous in crops for seed

• Loose smut of barley

  emergence. The first sign of infection is the appearance of a smutted ear. Instead of normal tissue, the ear contains a mass of olive-brown smut spores. [...] and compensated for Use resistant cultivars Perform field checks for infected seed and prevent the use of seeds from infected fields for further cropping [...] cycle and appearance of Loose smut of barley The seeds are infected during flowering and the infected seeds are the primary source of inoculum in the next

• Loose smut of wheat

  appearance of a smutted ear. Instead of normal tissue, the ear contains a mass of olive-brown smut spores. Life cycle and appearance of Loose smut of wheat [...] and compensated for Use resistant cultivars Perform field checks for infected seed and prevent the use of seeds from infected fields for further cropping [...] n and within one to two days after pollination. How to prevent Loose smut of wheat Use clean seed: Apply systemic fungicide treatment of seeds. Contact

• Root rot of carrot

  exhibit by necrotic leaf spots Life cycle and appearance of Root rot of carrots The fungus of R. carotae has delicate, simple morphological features hence [...] (optimum 4.2–4.7). This affinity for acidic conditions may explain the concentration of this disease in the rather acidic soils (of southwestern Norway). Spore [...] in nonsterile soil remained viable at 0°C and 3°C for 12 months, at 6°C for 6 months, and at 12°C for 2 months, indicating a capacity to overwinter in cold

• Black root rot of cucurbits

  Black root rot of cucurbits Test for the presence of Phomopsis sclerotioides with molecular tools before planting Use resistant rootstock of Cucurbita ficifolia [...] disease is usually restricted to a few of the roots but in severe cases all roots may be infected. At the final stage of the disease, only vascular tissue remains [...] appearance of Black root rot of cucurbits Phomopsis sclerotioides survives in the soil and is a strong saprophytic competitor, which means it can rapidly

• Treatment of bumblebee stings and allergies

  Treatment of bumblebee stings and allergies This information on bumblebee stings provides guidance for reducing the chance of being stung by a bumblebee [...] rarely sting. The chance of being stung by a bumblebee can be reduced by avoiding provoking them or making them aggressive. First of all, it is important to [...] reaction: swelling, itchiness and redness at the site of the sting, lasting for only a couple of hours. This can occur directly after the sting, but more