• Charcoal rot

  conditions. In field crops in temperate regions it is therefore not a problem. How to prevent Charcoal rot Plant in fields with no history of the disease [...] General Macrophomina phaseolina is a common soil fungus in warmer regions, causing charcoal rot. It has a very wide range of host crops, many of which [...] discolouration of vascular and cortex tissue (outer tissue layer) to orange-brown to dark brown. Cutting the roots may show the same discolouration of

• Anagyrus vladimiri

  Anagyrus vladimiri is a parasitic wasp belonging to the Encyrtidae family. This parasitic wasp is particularly effective for mealybug control, a common pest affecting [...] products Citripar Expand all items How to use Anagyrus vladimiri The parasitic wasp Anagyrus vladimir is available in a bottle ( Citripar ). Remove the label [...] be repeated at least 3 times at an interval of 1-2 weeks. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best

• Predatory mites

  crops, using a blower for dispersion is an available option. This approach proves particularly effective when a swift response is required due to a pest invading [...] targeting: Predatory mites have a remarkable ability to locate and prey upon specific pest species, minimizing damage to non-target organisms. Resilient [...] target pest is crucial. Scouting is essential to know where the pest is, how severe the infestation is and to identify the pest. Select the right predatory

• Black root rot of cucurbits

  coloured tissue that looks like black stripes. The disease is usually restricted to a few of the roots but in severe cases all roots may be infected. At the final [...] infection in this stage may kill the plants. In case of a less severe infection, the vines may wilt at a late stage of the crop, but when water supply is in [...] the life cycle. The fungus is dispersed by water, air and soil particles. How to prevent Black root rot of cucurbits Test for the presence of Phomopsis

• Black rot of carrots

  Post-harvest storage at 0-1 o C. A. brassicae and A. brassicicola : adjust the sowing date to avoid conditions conducive to infection. In greenhouses: avoid [...] radicina ) up to 8 years. Damage symptoms Black rot of carrots ( Alternaria radicina ) causes death of seedlings and dark brown lesions with a yellow halo [...] Alternaria radicina ) is a seed-transferred carrot disease. The seeds are the main source of primary infection and this may lead to death of seedlings. From

• Gummy stem blight

  the disease downwards. How to prevent Gummy stem blight Before cropping: Remove all crop debris and disinfect the greenhouse Choose a cultivar that is less [...] General Mycosphaerella cucumis (Didymella bryoniae) is a fungal plant pathogen that causes gummy stem blight. Damage symptoms Mycosphaerella cucumis in [...] less susceptible to internal fruit rot Use clean propagation material During cropping and between consecutive cucumber crops: Remove all pots and plant parts

• Fusarium wilt

  General Fusarium is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many species [...] small wounds, for example where lateral roots branch off from the tap root. How to prevent Fusarium wilt Remove or destroy crop residues Choose resistant cultivars [...] plantations may die and the soil may not be suitable for planting for many years to come. Life cycle and appearance of Fusarium wilt Fusarium oxysporum has many

• Dwarf bunt

  General Tilletia controversa is a plant pathogen. It is a fungus known to cause the smut disease TCK smut in soft white and hard red winter wheats, as [...] the whole kernel becomes a bunt ball full of teliospores. These balls break during harvest allowing the teliospores to fall to the ground. Additionally [...] which in turn become a source of disease in the next season. The optimum temperature for germination is 3-8 °C and it takes three to ten weeks for germination

• Wheat bunt

  the whole kernel becomes a bunt ball full of teliospores. These balls break during harvest allowing the teliospores to fall to the ground. Additionaly, [...] e of around 6 to 7 °C during that period. Soil moisture between field capacity and permanent wilting point is best for infection. How to prevent Wheat [...] healthy kernels, which in turn become a source of disease in the next season. Infection is strongly correlated to temperature and precipitation in the first

• Verticillium wilt

  around 25-27 °C. How to prevent Verticillium wilt Start with clean soil or substrate by heating it at a temperature if at least 65 o C for a minimum of 30 [...] beginning the plant seems to recover at night. The symptoms may occur only in parts of the plant. Cutting the stalk horizontally reveals a slight discolouration [...] stream. As a defence mechanism, the plant produces gum in the vessels. The presence of both the fungus and the gum causes the xylem vessels to get blocked