• Bacterial spot

  spot Xanthomonas vesicatoria survives on volunteer tomato plants in the field and on diseased plant debris. The bacteria are also seed-transmitted. Disease [...] cultivars of pepper are available and should be used Prevent plant diseases by optimizing plant potential and crop resilience. [...] lesions with a light brown centre. As with powdery mildew infection, pepper plants shed the leaves that are severely infected. Humid conditions are conducive

• Apple scab

  available. They infect the plant by direct penetration of the cuticula and then grow between the cuticula and the epidermis of the plant cells. This causes lesions [...] since they help in decomposing the infected leaves Prevent plant diseases by optimizing plant potential and crop resilience. [...] and may merge. Infected fruits and leaves may fall off prematurely. The plants’ defence mechanism is to produce corky rings around the lesions to prevent

• Koppert sponsor of The Netherlands Pavilion at Expo 2020 Dubai

  October 27, 2021

  energy and plants, surmounted by glass solar cell skylights and acoustic walls. ‘The cone is made up of 63 rings of ornamental and vegetable plants, including [...] tomatoes. Koppert provided the knowledge to control pests and diseases in the propagation material of the plants in a sustainable way’, Lahiani explains. The

• Koppert collaborates to launch free biocontrol tool

  February 14, 2020

  mark the inaugural International Year of Plant Health which aims to raise awareness of the importance of plant health in addressing world hunger, poverty [...] pressures on the environment. Users of the portal enter their country and crop pest problem query to start a search which generates information on biocontrol

• Southern blight

  main root. As a consequence, leaves higher up in the plant start yellowing. Severely affected plants present girdling of the stem, which causes wilting of [...] The fungus may reduce the stand of the plants. Damping-off may occur during germination or establishment of the plant (seedling phase), due to the occurrence [...] by the fungus Sclerotium rolfsii (Athelia rolfsii) . It is an important plant pathogen that inhabits the soil, and is responsible for root and stem rot

• Parasitic wasps vs chemical pesticides

  offer rapid pest suppression, their effects are often short-lived and can lead to pest resurgence. Using parasitic wasps for biological pest control , on [...] ng crops from pests, growers often weigh the benefits of parasitic wasps against chemical insecticides. Both methods aim to control pest populations, but [...] Biological control Parasitic wasps are natural enemies of many agricultural pests. They lay their eggs inside or underneath the bodies of host insects, and

• Spical-Plus

  Pests Two spotted spider mite ( Tetranychus urticae ); European red mite ( Panonychus ulmi ); citrus red mite ( Panonychus citri ); other spider mite species [...] predatory mites Dosage The dosage of Spical-Plus depends on climate, crop and pest density and should always be adjusted to the particular situation. Start [...] evenly spaced in the crop. Release should be repeated after 4 weeks if the pest is not controlled. Consult a Koppert advisor or a recognized distributor

• Spinach

  About Spinach (Spinacia oleracea ) is an edible flowering plant of the Amarantha family that originates in Asia. It is consumed as vegetable and is rich

• Fusarium head blight or scab

  wound healing after harvest, depending on the crop Prevent plant diseases by optimizing plant potential and crop resilience. [...] are considered weak pathogens and can only infect wounded or stressed host plants. Damage symptoms Fusarium fungi cause vascular wilt, root rot, foot and [...] overwinters for many years in the soil and on crop residues of infected plants as chlamydospores (thick walled mycelium cells) or mycelium. Survival is

• Black root rot of cucurbits

  annually Disinfect nutrient solution and irrigation water Prevent plant diseases by optimizing plant potential and crop resilience. [...] General Phomopsis sclerotioides is a plant pathogen infecting cucurbits, causing black root rot of cucurbits. Damage symptoms Phomopsis sclerotioides causes [...] with an intense green colour. Severe infection in this stage may kill the plants. In case of a less severe infection, the vines may wilt at a late stage