• Black rot of carrots

  appearance of Black rot of carrots Black rot of carrots ( Alternaria radicina ) is a seed-transferred carrot disease. The seeds are the main source of primary [...] crop residues and cause primary infection of the leaves. Survival can be several years, in the case of black rot of carrots ( Alternaria radicina ) up to 8 [...] primary infection and this may lead to death of seedlings. From the primary infection of leaves, this type of carrot disease can spread to the flowers (especially

• Loose smut of wheat

  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 [...] or loose smut of wheat. Damage symptoms Infection by Ustilago nuda f.sp. tritici remains invisible until head emergence. The first sign of infection is [...] 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

• Downy mildew of Cucurbits

  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 extruding [...] extruding from the stomata. Life cycle and appearance of Downy mildew Pathogens causing downy mildew are not fungi but Oomycetes and related to Pythium [...] protruding from the stomata. Because there are more stomata on the underside of the leaf, this is where most fluffy symptoms are found. How to prevent Downey

• Black root rot of cucurbits

  Black root rot of cucurbits Test for the presence of Phomopsis sclerotioides with molecular tools before planting Use resistant rootstock of Cucurbita ficifolia [...] lesions are slightly sunken and are mostly formed around the point of attachment of lateral roots and root hairs. The lesions may grow and encircle 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 vascular tissue remains

• Optimal placement of bumblebee hives

  Correct placement of hives The right placement of bumblebee hives can significantly enhance the pollination efficiency of bumblebees. The following steps [...] it is 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 [...] In case of insufficient shade, additional measures should be taken, especially in autumn when the Wireless Beehome System is closed. In times of high t

• Recognising the power of agriculture

  November 22, 2022

  responsible for 31% of all human-caused greenhouse gas emissions, the primary driver of climate change. By threatening every dimension of food security – [...] to climate change is the issue of biodiversity loss. The intensification of agriculture – which involves the heavy use of synthetic fertilisers, pesticides [...] climate action. The role of the agricultural and food sector in achieving the UN climate targets were major themes. In light of these discussions, we reflect

• Pollination of pumpkins by bumblebees

  July 23, 2021

  the results. The quality of the pumpkins is more uniform, and the use of Natupol Booster also has a clear added value in terms of shelf life. These benefits

• Control of aphids in rose

  March 3, 2020

  A reduction of available chemical agents to combat aphids in roses has made the integrated control of this pest more difficult. Choices need to be made [...] rose cultivation is not yet possible. The use of natural enemies has, however, resulted in a reduction of chemical spraying. Rose growers often have to [...] at the bottom of the crop where they are difficult to control with chemical agents. After three weeks, the aphids are back in the top of the crop, which

• Dutch Minister of Foreign Trade and Governor of Querétaro visit Koppert Mexico

  March 15, 2024

  Wilfred Mohr, Ambassador of the Kingdom of the Netherlands in Mexico, and Mauricio Kuri González, the Governor of the State of Queretaro, accompanied by [...] included visits to various governmental agencies, such as the Ministry of Foreign Affairs of Mexico, non-governmental organizations, and Dutch companies operating [...] warmly welcomed by Alfonso Torres, General Manager of Koppert Mexico, and Rigoberto Bueno, Chairman of the Mexican Board, who hosted the meeting. Following

• Certainty in the quality of every sachet and bottle of our predatory mites

  May 19, 2025

  knowledge of biology and agronomy to promote environmentally friendly agricultural practices. For Bertha, plants are fundamental pillars of ecosystems [...] the quality of the predatory mites that Koppert produces and imports. Her work involves verifying the quantity, activity, and capability of these small [...] worldwide distribution, every step of the process is carried out with rigorous standards. Bertha highlights the importance of the cold chain during transportation