Monitoring

Root rot of carrot

Conidia 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 [...] has delicate, simple morphological features hence is not easy to place it at the generic level. Årsvoll was the first to identify and describe the fungus [...] An infection can occur through the soil and the air. The fungus develops at temperatures ranging from -3°C to 25°C, with an optimum around 18°C. Lesions

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 [...] brown lesions on stem and foot. On fruits, dark sunken, leathery lesions occur at the side of the stem. Life cycle and appearance of Early blight From the primary [...] Prevent 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

Black rot of carrots

occasionally appear on the carrots at harvest but usually occur only during post-harvest storage. Sporulation of Alternaria occurs at temperatures from 2-4 °C up [...] up to 28-30 °C (optimum temperatures lie between 15 and 28 °C) and at a relative humidity (RH) of over 90% or when the leaves are wet. Small differences [...] Prevent 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

Cottony soft rot

Sclerotia germinate at temperatures between 4 and 26 °C with an optimum between 13 and 15 °C. Germination and infection mostly take place at high soil water [...] soft root ( Sclerotinia sclerotiorum ) infection are water-soaked lesions at the stem base. The plant above it wilts and rots. White, fluffy fungal mycelium

En-Strip

conditions The parasitic wasp is most effective at temperatures between 20°C and 25°C (68 and 77°F). At a 24 hours average temperature below 17°C/63°F the [...] if possible approximately 75 cm under the plant head Avoid hanging cards at places exposed to direct sunlight Dosage The dosage of En-Strip depends on [...] 1-10 per m 2 /release. Releases should be repeated until control is achieved. At increasing temperatures it may be better to switch to the use of Enermix or

Natutec Trianum-G tool

Trianum-G at the start of the cultivation. Mode of action The Trianum-G tool is a hand-held device, used to uniformly distribute Trianum-G at the start

Black leg of seedlings

temperatures or sudden fluctuations in temperature. Pythium ultimum mostly occurs at low soil or water temperatures and causes among others cereal diseases. Damage [...] lose their turgor or the leaf tips turn yellow, for example in flower bulbs. At first, the plants recover during the night, but later the plants wilt irreversibly [...] recirculating nutrient solutions Increase the distance to the main substrate at the start by using higher substrate blocks for the seedlings In field crops:

Bacterial canker of tomato

turn brown and may merge. The leaves wilt and curl upwards, often starting at one side of the plant. They turn brown but don’t fall off. On stems and shoots [...] lower leaves and subsequent expansion of the wilt upwards. Cutting the stem at the foot shows whitish ooze with bacteria in the case of C lavibacter infection [...] disinfect tools and 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

Damping-off

or sudden fluctuations in temperature. Pythium aphanidermatum mostly occurs at higher temperatures in the soil or irrigation water. Pythium aphanidermatum [...] lose their turgor or the leaf tips turn yellow, for example in flower bulbs. At first, the plants recover during the night, but later the plants wilt irreversibly [...] recirculating nutrient solutions. Increase the distance to the main substrate at the start by using higher substrate blocks for the seedlings. In field crops: