• Koppert One

  insights to support your decisions. The Digital Assistant also helps you with questions about Koppert products and how to control key pests and diseases in [...] Koppert One - Digital platform for biological crop protection Koppert One is your all-in-one digital platform designed to simplify and strengthen biological [...] application window for your exact location. Clear ratings (from Poor to Excellent) show you instantly whether it’s the right moment to act. No guesswork

• Root and crown rot of strawberry

  General New diseases in strawberry have been ascribed to Pestalotiopsis clavispora in the case of root and crown rot (of strawberry), first found in The Netherlands [...] Pestalotiopsis clavispora has been connected to strawberry diseases, but has also been linked to rose diseases. Damage symptoms Pestalotiopsis clavispora [...] water stimulates disease development. How to prevent Root and crown rot of strawberry Avoid stress: Take runner tips at the right stage to avoid stress and

• Powdery mildew

  walls and makes it harder for the fungi to enter the leaves To reduce chances of powdery mildew in greenhouses, it is advised to first ventilate by only [...] Ascospores have not been found yet for all powdery mildew fungi and especially in greenhouse crops they don’t play a role in the epidemics. Fungal spores germinate [...] explode when in contact with water for no more than a few hours. Powdery mildew spores, either ascospores or conidia, don’t need nutrients or water for germination

• Gummy stem blight

  the main source of dispersal of disease upwards in the crop and the conidia for spread of the disease downwards. How to prevent Gummy stem blight Before [...] makes it harder for the fungi to enter the leaves Pick flowers within two days after opening in areas suspected of disease (only feasible in high-wire crops) [...] cucumis (Didymella bryoniae) is a fungal plant pathogen that causes gummy stem blight. Damage symptoms Mycosphaerella cucumis in cucumber causes brown lesions

• Bacterial wilt, brown rot

  solanacearum is a plant pathogenic bacterium. It is a soil-borne disease and colonises the xylem, causing bacterial wilt and brown rot in a very wide range [...] quarantine organism in Europe and considered a bioterrorist organism in the United States. It is a commonly found soil-inhabitant in tropical and subtropical [...] 35-37 °C, the optimum for Race 3 is 27 °C, which makes it more dangerous in temperate regions. It survives well in water and in many different soil types

• Brown root rot, corky root rot

  cultivation practices. However, this fungus is a poor competitor against a balanced microbial population in soil. How to prevent Brown root rot, corky root rot [...] lycopersici survives in the soil and in buried tomato roots as microsclerotia. The microsclerotia germinate and produce mycelium that in turn infect the roots [...] symptoms The first signs of this disease, are poorly looking plants in localized areas of the greenhouse or field. The affected plants may wilt. Also, interveinal

• Angular leaf spot

  overwinters in plants and dead leaves, that become the primary source of infection in the spring. The bacteria are also introduced in a crop in new transplants [...] bacterium is very resistant to desiccation and can survive well in dry leaves or leaves in the soil, but not independantly in the soil. Under humid conditions [...] plants. How to prevent Angular leaf spot Use clean propagation material and disease-free seed Remove sources of inoculum such as dead leaves In field-grown

• Black leg of seedlings

  that allow the disease to spread to neighbouring plants. The zoospores disperse via water. Therefore, this disease spreads most rapidly in wet conditions [...] considered 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 [...] survive very well in the soil or substrate in the absence of plants. Many species are entirely saprophytic, so these do not harm plants. How to prevent Black

• Dwarf bunt

  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 [...] 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

• Bacterial spot

  isolates are resistant to copper-containing pesticides. How to prevent Bacterial spot Use clean propagation material and disease-free seed Remove sources [...] like scab. These spots may be surrounded by a halo. In pepper, the spots on the leaves are also round and small to start with and slightly raised from the [...] survives on volunteer tomato plants in the field and on diseased plant debris. The bacteria are also seed-transmitted. Disease development is favoured by te