Root rot of carrot

concentration of this disease in the rather acidic soils (of southwestern Norway). Spore germination was inhibited in nonsterile soil but not in similar soil [...] Life cycle and appearance of Root rot of carrots The fungus of R. carotae has delicate, simple morphological features hence is not easy to place it at the [...] overwinter in cold regions. Inoculum can survive in perennial (umbelliferous) weeds or alternate hosts and transfer to annual crops. As far as is known, Daucus

Towards a chemical-free future in agriculture: The vision of grower Koen

was miles ahead in terms of sustainability and environmental friendliness, but that gap is getting smaller. In 15 years, I expect there will be no difference [...] This way of working allows him to gain experience in using biological crop protection . As a result, he acquires a lot of knowledge and is prepared to [...] increase in effective organic methods." Limitation in use of chemical pesticides The increasing interest, especially from governmental bodies, in organic

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 [...] germination free water is required. For most downy mildews, the optimum temperature is around 15 o C and the closer the temperature is to this, the shorter [...] structures are 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

Treatment of bumblebee stings and allergies

to the site. In addition, a number of anti-itch ointments are available (e.g. containing diethyl-m-toluamide). In the rare case of a sting in the mouth or [...] environment in many countries. In addition, bumblebees and honeybees are used as pollinators in agricultural and horticultural crops. There are various [...] reactions only occur when the victim is stung dozens of times in a brief period. General allergic reactions can occur in the nervous or circulatory system

Nematodes established solution for Nesidiocoris in France

Macrolophus . Capsanem is a valuable ally!’ Audrey Vignaud is Koppert’s technical head of the consultant for the South East Region of France: ‘We recommended [...] Nesidiocoris showing up in crops from February onwards, which is really early. Nesidiocoris tenuis is a bug that has been a problem in France for a good 10 [...] by producers in the South of France, but also, more recently in the north. ‘We had reached a technical impasse with this bug, especially in the “zero residue”

Trianum effectively controls Pythium in cucumber

Trianum, levels of Phythium have decreased dramatically. Up until 2019, there was a lot of damage and loss of production at the end of cultivation. Whole [...] two grams of Trianium-G on each mat before putting out the new plants in ‘duo’ pots (two plants in one rockwool cube). He decided to do this in response [...] a farm covering over six hectares along Hoefslag road in the Dutch village of Pijnacker. Built in 2011, the farm has two sections. Hendriks grows high-wire

Municipality Venray: biological control of oak processionary caterpillars

In the Municipality of Venray a third of the tree stock in the area, some 11,000 trees, is oak. ‘We’ve been using Koppert’s nematode product Entonem as [...] coordinator of oak processionary caterpillar management for the Municipality of Venray. ‘We use nematodes at locations in outlying areas where there might be [...] nests. It is possible that there has been more drift during spraying in those places, which means that the nematodes are more easily blown away. In some cases

How to protect bumblebees in cold

crop is healthy and the average 24-hour temperature is at least 15 ºC, you can ensure that there won't be any issues with the foraging activity of the [...] tips to ensure bumblebee colonies thrive in low temperatures: Warmth is key Place the hives in the warmest part of the tunnel/greenhouse, ensuring they catch [...] during such conditions to avoid damage Keep in mind that the impact of climate on pollination and colony quality is also time-sensitive. The longer unfavorable

Amazone Plants continues the path of organic cultivation

that there is always a strong population in the greenhouse crop and control of the thrips is maintained at the right level. The method works fine in this [...] proportion of the growing plants. In the end, everything more or less turned out fine – the plants in 12 cm pots were sold in 14 cm pots in the summer [...] product of natural origin, such as Mycotal , twice a year, in the spring and in the autumn. Wim van der Meer explains, ‘Koppert is involved in a trial

Enhancing the efficiency of biocontrol applications with Natutec Airobreez

Airobreez, we’ve accomplished that and more." Located in the Netherlands' Westland region, Labeau specializes in breeding and propagating young ornamental plants [...] plants, with Phalaenopsis orchids as its flagship product. As one of the first adopters of the Airobreez, the company has benefited from this advanced application [...] efficiency, and labor savings in dispersing beneficial organisms – used for biological crop protection . "The device is lightweight, easy to handle, and