Downy mildew of Cucurbits

brown. On the underside of the leave fluffy growth appears which is first white and later turns grey-brown. This is actually the sporulation of the pathogens [...] For most downy mildews, the optimum temperature is around 15 o C and the closer the temperature is to this, the shorter the leaf wetness period that is [...] Inside the plant, the pathogens produce haustoria, small organs with which the pathogen can take up nutrients from the living plant cells. The pathogens

Black leg of seedlings

symptom of a Pythium infection is the easy stripping of the skin from the root cortex with a finger nail. Life cycle and appearance of Black leg of seedlings [...] plants the flower buds fall off. The side roots rot and very little of the root system survives. On the border between air and soil or substrate the plant [...] enable the spores to move through water. The zoospores are chemically drawn to the growing roots of young plants and move towards them through the soil water

Loose smut of barley

appearance of Loose smut of barley The seeds are infected during flowering and the infected seeds are the primary source of inoculum in the next crop. The fungus [...] survives inside the seed and when the seed germinates, the mycelium of the fungus grows upwards inside the plant into the growing tip and the seed primordia [...] until head emergence. The first sign of infection is the appearance of a smutted ear. Instead of normal tissue, the ear contains a mass of olive-brown smut

Loose smut of wheat

wheat The seeds are infected during flowering and the infected seeds are the primary source of inoculum in the next crop. The fungus survives inside the seed [...] seed and when the seed germinates, the mycelium of the fungus grows upwards inside the plant into the growing tip and the seed primordia. It only becomes [...] appearance of a smutted ear. Instead of normal tissue, the ear contains a mass of olive-brown smut spores. Life cycle and appearance of Loose smut of wheat

Leaf spot of strawberry

clavispora in the case of root and crown rot (of strawberry), first found in The Netherlands, and Pestalotiopsis longisetula in the case of leaf spots, such [...] appearance of Leaf spot of strawberry Not much is known about the life cycle. The fungus produces ascospores and conidia, but their role in the epidemic [...] such as leaf spot of strawberry and fruit rot reported mainly from Brazil. The genus is quite complex, so the taxonomy may change. Pestalotiopsis clavispora

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Black root rot of cucurbits

are mostly formed around the point of attachment of lateral roots and root hairs. The lesions may grow and encircle the root. The roots become yellow-brown [...] black stripes. The disease is usually restricted to a few of the roots but in severe cases all roots may be infected. At the final stage of the disease, only [...] infection in this stage may kill the plants. In case of a less severe infection, the vines may wilt at a late stage of the crop, but when water supply is

The Netherlands acquires a registration extension for Trianum-G for an increasing number of crops

published: December 17, 2020 The Netherlands acquires a registration extension for Trianum-G for an increasing number of crops

Optimal placement of bumblebee hives

advisable to position the hives at a height of 20 – 60 cm above the ground on the south side of the path. This location ensures that the hives receive adequate [...] Correct placement of hives The right placement of bumblebee hives can significantly enhance the pollination efficiency of bumblebees. The following steps [...] sunlight, typically on the north side. If needed, the hives can be placed higher inside the crop, at a minimum height of 1.4 meters above the ground, particularly

Pollination of pumpkins by bumblebees

Category: News Date published: July 23, 2021 Pollination of pumpkins by bumblebees More information about Natupol Booster? Other pollination products