• Control spidermite with Phytoseiulus in soft fruit

  May 8, 2019

  The table below is a guideline for application rates in different crops, and different pest pressures. Application rates for Spidex: Preventative Low pest [...] variety of growing systems in UK soft fruit crops, the introduction rates for Phytoseiulus differ according to the particular crop, e.g. being expressed [...] good balance between predator and prey is achieved. This can be seen by the new growth of the plant being free of damage, and the presence of predatory mites

• Legume Pest Monitoring Systems

  April 12, 2023

  working together to ensure the continuation of our important monitoring systems for peas. With funding from UKRI, we have been evaluating pea midge pheromones [...] and significantly reduced yields in the more determinate vining peas. "The New System Will Enable Growers To Manage This Pest More Effectively" Following [...] activity period of midges was longer than normally expected, midges flying for up to 4 weeks at some sites compared to just a few days as we would normally

• Dwarf bunt

  in the next season. The optimum temperature for germination is 3-8 °C and it takes three to ten weeks for germination. The seedlings are infected after [...] infection. The soil-borne teliospores may survive in soil without suitable host for as long as ten years. Seed-borne transmission does occur, but is less important [...] to prevent Dwarf bunt Use resistant cultivars. However, the fungi may form new isolates that can break resistance Use clean, disinfected seed The use of

• Wheat bunt

  permanent wilting point is best for infection. How to prevent Wheat bunt Use resistant cultivars. However, the fungi may form new isolates that can break resistance [...] Triticum controversa mostly attacks the 2-3 leaf stage, this is less effective for this fungus Prevent plant diseases by optimizing plant potential and crop

• Phytophthora blight

  temperatures between 15 and 23 °C and higher water content than is optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs [...] zoospores. The pathogen grows into the stem and on the plant surface and new sporangiophores (structures containing sporangia, a type of spores) with sporangia [...] either by germinating sporangia or by zoospores produced in the sporangia. For germination on above-ground plant parts, leaf wetness is required. Dispersal

• Lyprauta

  droplets of oxalic-acid containing saliva that they use for catching and killing prey and for shelter. [...] internally. Just above the damaged area, the roots produce large numbers of new branches. This ultimately results in a reduced number of flower stems and [...] and a longer vegetative stage. The root damage can also form entry points for pathogens. Life cycle and appearance of Lyprauta The adults of the three species

• Mottled arum aphid

  produce large amounts of honeydew, which provides an excellent substrate for the growth of black sooty mould. Large areas of mould covering the leaves [...] parthenogenesis, with unfertilized viviparous females continuously producing new generations of females. There is no sexual stage in the life cycle. Wingless

• Aphipar-M

  Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for your situation. Environmental conditions Most effective between [...] the product can be stored for 1-2 days. Storage temperature 8-10°C/47-50°F. Storage conditions In the dark. Recommended for you Aphidius matricariae Parasitoid [...] Pests Especially for tobacco aphid ( Myzus persicae var. nicotianae ) and peach-potato aphid ( Myzus persicae var. persicae ). Mode of action Adult parasitic

• A legacy of sustainability: Stolk Brothers and Koppert’s shared vision

  March 17, 2025

  lettuce to tomatoes, and eventually to their current specialty: anthuriums. For Pieter Stolk, the transition to biological crop protection was both a necessity [...] Stolk Brothers and Koppert runs deep. “Our families have known each other for years. That foundation of trust made it easy to work together,” Pieter explains [...] growing—remains.” Predatory mites: the backbone of a sustainable strategy For Stolk Brothers, predatory mites form the foundation of their biological crop

• Angular leaf spot

  of infection in the spring. The bacteria are also introduced in a crop in new transplants. This bacterium is very resistant to desiccation and can survive