• Angular leaf spot

  t. When conditions are humid, a viscous bacterial exudate forms on the underside of the leaf. This exudate changes to a white film when it dries. Lesions [...] types of vascular tissue of the crown can be infected, creating a look similar to that of a Phytophthora fragariae infection. Life cycle and appearance of [...] spring. The bacteria are also introduced in a crop in new transplants. This bacterium is very resistant to desiccation and can survive well in dry leaves

• Bacterial spot

  such as clipping and handling and aerosols. Many isolates are resistant to copper-containing pesticides. How to prevent Bacterial spot Use clean propagation [...] 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 [...] also seed-transmitted. Disease development is favoured by temperatures between 24 and 30 °C and high precipitation due to rain, fog or overhead irrigation

• Beneficial nematodes and natural enemies effectively control pests and diseases in garlic, leek and onion

  October 10, 2023

  Consequently, they experienced a widespread loss of effectiveness of many chemicals and needed other, safer and more sustainable means to ensure plant protection [...] trials five years ago, Koppert has developed successful biological control protocols for outdoor crops. Successful biocontrol strategies Koppert is a pioneer [...] Europe when it comes to the use of vegetable hedges with Lobularia maritima, that offer Orius laevigatus (a natural enemy of thrips ) a natural shelter and

• Downy mildew of Cucurbits

  symptoms are found. How to prevent Downey mildew Choose resistant cultivars Use a wide crop rotation with non-host crops Prevent a humid microclimate. [...] from the living plant cells. The pathogens continue to grow inside the leaves and after a while new spore-bearing structures are protruding from the stomata [...] you “Empowering our strawberry plants through nutrition has helped us to become a more reliable supplier”

• Sustainability drive continues - plastic buckets now recycled!

  March 30, 2024

  helping growers to transition to more sustainable agriculture and horticulture for more than half a century, much still needs to be done for us to reach our [...] presented a contamination risk,’ Daan explains. ‘We approached Houweling Group and together found a win-win solution. All the growers have to do is to stack [...] ‘Growers were facing high costs to have the buckets removed and asked us how we could help to solve this problem,’ Project Manager Daan Verbeek remembers

• Citrus thrips

  survive on many different host plants but seem to be particularly attracted to those with aromatic oils and terpenoids. Scirtothrips aurantii is a quarantine [...] towards the shady area of the tree to pupate, if a suitable site is not found, the larva will drop to the ground to pupate. Citrus thrips does not enter [...] grower who suspects the presence of this species is legally required to report it to the local competent authority. Damage and symptoms Citrus thrips larvae

• Social responsibility

  people We aspire to create a workplace where people work with pleasure in a safe environment to achieve our mission. We prioritize developing and fulfilling [...] communities worldwide. We are contributing to safe and nutritious food production and food safety while we play a vital role in safeguarding global food security [...] driving change towards a future defined by sustainability, emphasizing the need for 100% sustainable, safely produced food. Through a newly formed global

• Cedomon

  Cedomon is a biological seed dressing that protects seeds against fungal diseases, hence supports growth and development of young cereal plants up to the five-leaf [...] immediate and long-lasting control on a wide variety of seed-borne diseases. How does it work? Cedomon contains a high concentration of the P. chlororaphis [...] rapidly start to multiply. This ensures that the seeds and first developing roots are quickly colonized. Subsequently, the bacteria will start to compete with

• Testimony: the V10 vaccine is once again used against the Pepino mosaic virus

  September 7, 2020

  We were forced to dispose of a large quantity. Following this bad season, a new adviser told us about the V10 vaccine, which we decided to test. Koppert: [...] father’s greenhouses in Belgium for ten years, using a competitor’s vaccine. When I moved to France three years ago, I continued using this vaccine. The [...] solution, to cover half a day’s needs, in order to prevent the product from getting too warm or losing its quality. Each applicator wore latex gloves to protect

• Grapes

  strategy. It works by interfering with disease development and reducing infection pressure, helping to protect new plant growth during critical stages. Tiagan [...] Maky is known for its ability to produce a wide range of bio-active compounds involved in microbial interactions. When used as a lysate, these compounds support [...] diseases in grape production. Unlike many fungal pathogens, it does not require free water to infect, making it a persistent threat throughout the growing