• Swirski-Mite

  swirskii is most effective at temperatures between 20 and 32°C (68 and 90°F). It is not effective at temperatures below 18°C/64°F. Amblyseius swirskii is sensitive [...] if necessary. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for your situation. Environmental [...] cap to open the dosage hole Sprinkle material on leaves or pour into Diboxes Make sure the material remains on the introduction site for at least a few

• Greenhouse whitefly

  whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and the excess is excreted [...] development of fruit and lead to a reduction in yield. The honeydew deposited on fruit makes it sticky. Dirt adheres to the fruit, and the growth of sooty [...] larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of sucking out the sap from the plant leaves and secreting

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  You may print or download a part of the website onto your hard disc or distribute it to other parties provided that this is done purely for information [...] to this website personal data and other data may be stored in the form of cookies. Koppert reserves the right to store this data and to use it in its [...] (including, but not limited to, images, product descriptions, and advice) contained, or referred to, on this website is complete, up to date, accurate, and suitable

• Verticillium wilt

  Verticillium albo-atrum is 21 °C and growth stops above 30 °C, whereas Verticillium dahliae has an optimum temperature around 25-27 °C. How to prevent Verticillium [...] m wilt Start with clean soil or substrate by heating it at a temperature if at least 65 o C for a minimum of 30 minutes Use clean seed, tubers or cuttings [...] 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

• Bacterial canker of tomato

  General Clavibacter is a quarantine organism in Europe, which means that strong efforts are used to prevent the bacterium from entering. When the occasional [...] tuber-borne and primary infection is mostly from infected propagation material. It spreads to other seedlings by touching the plants in greenhouse crops and by [...] greenhouse structures Use a crop rotation in field crops of at least two years and alternate with a non-host crop Apply deep-ploughing to stimulate the decay

• Fusarium spp.

  Fusarium spp. is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many species are [...] (deoxynivalenol) is the best-known. The mycotoxins are toxic to mammals so maximum levels have been determined. Fusarium sambucinum (a.k.a. F. sulphureum [...] of Fusarium spp. Fusarium is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many

• Whitefly

  larvae need a lot of nutrients for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and the excess is excreted [...] deposited on fruit makes it sticky. Dirt adheres to the fruit, and the growth of sooty moulds ( Cladosporium spp.) is encouraged. Such fruit is unsaleable. In serious [...] causes leaf yellowing and leads to honeydew deposits that reduce crop quality. Effective whitefly control is essential to maintain healthy, productive crops

• Pierce's disease of grapevine

  General Xylella fastidiosa is a gram-negative bacterium which is limited to xylem tissue. It has many hosts, many of which show minor or no symptoms. More [...] canopy of infected plants is compact and umbrella-like due to the shorter internodes. The foliage is denser and the leaves are a darker green than usual [...] from early to midsummer. The necrotic area spreads over the leaf from the margin and is marked by a chlorotic band. In the beginning, only a few leaves

• Aphipar

  in Diboxes Make sure the material remains dry and is not moved from its introduction site for at least a few days Dosage The dosage of Aphipar depends on [...] least 3 times. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for your situation. Environmental [...] develops inside the aphid, which converts into a leathery mummy. The adult parasitic wasp emerges through a hole at the rear of the mummy. The first mummies

• Don Sanchez Fresh innovates with biological control in avocados

  using biological control in its raspberry production when it successfully controlled the white mite, a pest that had been a major problem for several berry [...] beneficial insects. It also takes a lot of dedication to obtain the favorable results that biological pest control gives. More open doors thanks to biological control [...] control is because a law is coming that will limit the use of many molecules and insecticides. Together with Koppert, Don Sánchez Fresh has managed to implement