• Knowing & recognizing

  use of biological control is not a simple process, it has become a complex system in which many aspects need to be considered. The need for knowledge has [...] explains how they spread in the crop, the damage they can cause, and specific behavioural characteristics. Shop now Koppert - A knowledge company The use [...] giving you the ability to recognize the pest or disease you are up against by means of detailed illustrations and close-up photographs. The knowledge gained

• Veni Biosulfur

  sulphur taken up by the plant. Crops All crops. Mode of action Veni Biosulfur increases the amount of sulphur taken up by the plant. Sulphur is an essential [...] from 1-3 litres/ha. Applications should be repeated a number of times. Consult a Koppert advisor or a recognized distributor of Koppert products for advise [...] pH of the solution should be between 5 and 7 Application Apply as a foliar spray Use a fine nozzle (<300 microns) After application rinse the nozzles thoroughly

• Spidex

  Releases should be repeated once or twice at weekly intervals. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best [...] persimilis is most effective at temperatures between 13 and 27°C (55 and 81°F) and not effective above 30°C/86°F. Phytoseiulus persimilis is sensitive to [...] Diboxes Make sure the material remains on the introduction site for at least a few hours after introduction Can also be applied with Natutec Airobreez, Natutec

• Maize

  mays ), is a large grain plant that is divided in different types including: pod corn, sweet corn, flour corn and baby corn. Maize is adaptable to a whole [...] climate conditions and is the single most extensively grown crop in Kenya. It is also the country's main staple food and is cultivated by both small and la [...] can all be used to produce a large variety of food and non-food products. Recommended for you Some Tips for Maize Production in Challenging Times

• Horiver Rollertrap

  additional support. It is recommended to replace the Rollertrap after 10 months, or earlier if the surface is largely covered by insects and/or debris For [...] temperature 0-32°C/32-104°F. Storage conditions In a cool, dry place. Recommended for you Know Your Enemy - A closer look at Whiteflies [...] and transparent Standard sizes: 5, 15 and 30 cm x 100 m 15 cm width is also available in lengths of 125, 150 and 500 m; other lengths on request Presentation

• 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 [...] . This 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 [...] General Xanthomonas fragariae is a leaf spot disease found in strawberry. Damage symptoms Xanthomonas fragariae initially causes small, water-soaked lesions

• Phytophthora blight

  higher water content than is optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs or in the soil in different stages: as oospores [...] sporangia, a type of spores) with sporangia are formed that protrude through the stomata. Secondary infection is either by germinating sporangia or by zoospores [...] zoospores produced in the sporangia. For germination on above-ground plant parts, leaf wetness is required. Dispersal is by wind and rain causes the pathogen

• Bacterial wilt, brown rot

  solanacearum is a quarantine organism in Europe and considered a bioterrorist organism in the United States. It is a commonly found soil-inhabitant in tropical [...] 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 [...] 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 and

• Damping-off

  General Pythium is considered a ‘weak pathogen’, meaning that it can usually only affect plants that are in a sub-optimal condition or suffer from stress [...] higher temperatures in the soil or irrigation water. Pythium aphanidermatum mostly occurs in young plants and damage is more extensive in young crops. Damage [...] substrate the plant turns brown. A typical symptom of a Pythium infection is the easy stripping of the skin from the root cortex with a finger nail. Life cycle

• Early blight

  General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause [...] These spots can be distinguished by the dark and brown concentric rings that are caused by sporulation. Species may differ in specific symptoms. Damage symptoms [...] and at a relative humidity (RH) of over 90% or when the leaves are wet. Small differences in optimum temperature occur between species, but in general