Working at Koppert

works at our company agrees: At Koppert you are regarded as an individual. Our company has grown into an international business over the past 50 years [...] colleagues. At Koppert we work together. Koppert employees have many opportunities to develop their careers. Koppert is recognized as a training company in many [...] many fields. To develop your career within the company, Koppert has developed an internal career policy. New vacancies are preferably filled internally. Koppert

Koppert India celebrated 10 years as partners with Indian nature and farmers

Root rot of carrot

rootlets. Conidia on leaflets produced a germ tube, an appressorium and an infection peg into an epidermal cell, and then intracellular and intercellular mycelium [...] buried in nonsterile soil remained viable at 0°C and 3°C for 12 months, at 6°C for 6 months, and at 12°C for 2 months, indicating a capacity to overwinter [...] identify and describe the fungus in Norway, in 1965. An infection can occur through the soil and the air. The fungus develops at temperatures ranging from

Early blight

Sporulation of Alternaria occurs at temperatures from 2-4 °C up to 28-30 °C (optimum temperatures lie between 15 and 28 °C) and at a relative humidity (RH) of [...] storage at 0-1 o C. A. brassicae and A. brassicicola : adjust the sowing date to avoid conditions conducive to infection. In greenhouses: avoid high RH. Prevent [...] is larger under quite warm and humid conditions. Infection may take place within a few hours, with lesions occurring as rapidly as two to three days later

Black rot of carrots

damage during harvest (in potato and carrot). Post-harvest storage at 0-1 o C. A. brassicae and A. brassicicola : adjust the sowing date to avoid conditions [...] carrots at harvest but usually occur only during post-harvest storage. Sporulation of Alternaria occurs at temperatures from 2-4 °C up to 28-30 °C (optimum t [...] temperatures lie between 15 and 28 °C) and at a relative humidity (RH) of over 90% or when the leaves are wet. Small differences in optimum temperatures occur

Swirski-Mite Plus

preventively or as soon as the first pest mites are detected in the crop. Use at least 4,000 sachets per ha and hang them evenly spaced in the crop. Release [...] 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). A. swirskii is sensitive [...] sheltered locations in the crop, not exposed to direct sunlight Sachets already have an exit hole Hold sachets by the cardboard strip at the top, to avoid damaging

Fusarium head blight or scab

germinate at temperatures between 4 and 35 °C, with an optimum between 25 and 28 °C. Germination only occurs at relative humidity (RH) above 80%. Warm (25-30 [...] Primary infection is either seed-borne or takes place as infection of the roots at the root tip or in small wounds, for example where lateral roots branch [...] head blight in cereals, such as wheat (fusarium head blight wheat) and post-harvest decay. Life cycle and appearance of Fusarium head blight or scab Most

Verticillium wilt

around 25-27 °C. How to prevent Verticillium wilt Start with clean soil or substrate by heating it at a temperature if at least 65 o C for a minimum of 30 [...] tubers or cuttings Grow less susceptible cultivars Prevent damage to the roots by controlling the nematodes, as damaged spots can be used as points of entry [...] verticillium wilt and early dying of potato. Damage symptoms Verticillium species mostly cause wilting of plants. The wilting starts at the lower leaves. These

Swirski-Mite LD

preventively or as soon as the first pest mites are detected in the crop. Use at least 4,000 sachets per ha and hang them evenly spaced in the crop. Release [...] sheltered locations in the crop, not exposed to direct sunlight Sachets already have an exit hole Hold sachets by the cardboard strip at the top, to avoid damaging [...] Amblyseius andersoni ). Storage time after receipt Apply as soon as possible after receipt. If necessary, the product can be stored for 1-2 days. Storage temperature

Amblyseius swirskii

preventively or as soon as the first pest mites are detected in the crop. Use at least 4,000 sachets per ha and hang them evenly spaced in the crop. Release [...] crawlers and second instar larvae of whiteflies. At 25°C under optimal conditions, an adult female Amblyseius swirskii lays 2.3 eggs per day with Trialeurodes [...] 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 to relative