• Fusarium head blight or scab

  density. The foot of the plant is infected, either because the seedling was infected or by direct infection of the foot by overwintering inoculum. On the infected [...] takes place as infection of the roots at the root tip or in small wounds, for example where lateral roots branch off from the tap root. Gibberella zeae (Fusarium [...] spread the disease. Gibberella zeae (Fusarium graminearum ) primarily infects the older, lower leaves. The spores are dispersed upwards to the ears by

• Legume Pest Monitoring Systems

  April 12, 2023

  growers in recent years. Pea midge is a pest that affects mainly vining peas, although combining peas are occasionally attacked. The larvae feed in the flower [...] leading to flower failure and significantly reduced yields in the more determinate vining peas. "The New System Will Enable Growers To Manage This Pest More [...] More Effectively" Following evaluation at several sites in Yorkshire in 2021, the monitoring system has been shown to work well, accurately predicting early

• Koppert collaborates with Valto to control harmful tomato virus

  October 8, 2018

  access to tomato growers around the world. The two innovative biological solutions producers are located in the heart of the Dutch fruit and vegetable growing [...] sale of this natural viral solution to the rest of the world. The product is awaiting registration in most of the remaining EU countries and registration [...] protects a substantial percentage of the total production of tomatoes in the Netherlands. ‘ V10 has proved its worth during the course of several efficiency trials

• Phytophthora blight

  wind and rain causes the pathogen to be returned to the soil from infected plants. Dispersal in the soil happens via water, since the zoospores can readily [...] fungal growth on the leaves. The centre is grey-brown with a light-green edge. On the stem, elongated brown lesions occur, usually circling the stem. On potato [...] through the skin. The Great Famine was a period of mass starvation caused by this disease which ravaged potato crops throughout Europe during the 1840s.

• Dacnusa sibirica

  a hole in the pupal cuticle with their jaws. The orientation of the wasp within the host pupa is the same as that of the leaf miner itself, the head of [...] particularly in the control of leaf miners of the genus Liriomyza . The species is native to Europe and can appear spontaneously in greenhouses in all seasons [...] sibirica The parasitic wasp Dacnusa sibirica is available in a bottle ( Minusa ). Release parasitic wasps between the leaves of the crop in the morning

• Tomato russet mite

  time in Australia and is a pest in tomatoes in all areas where they are grown. Other members of the plant family Solanaceae may be affected to a lesser [...] rusty brown colour, and in serious cases they may snap. The fruit can also be affected, and when this happens in tomatoes, the skin becomes coarse and [...] and affected leaves dry out quickly. The damage is first seen on the lower part of the plant and moves upwards as the mites ascend. Life cycle and appearance

• 100% Sustainable Agriculture

  that is the guiding principle in everything we do! Pioneering is not new to Koppert. In fact, it’s in our DNA. Fifty years ago our founder was the first [...] constantly testing them in the field together with you. Only with the help of your knowledge and experience can we move forward to develop the very best biological [...] alone: Koppert wants to help you find the right solutions. We are a family business and the global market leader in developing sustainable solutions against

• Pollination under artificial lights

  September 24, 2018

  colonies. The company has been finding solutions to these problems ever since. Constant innovation The first hive innovation was the introduction of the ‘ Wireless [...] drop, growers in the higher latitudes of the Northern Hemisphere are paying special attention to their growing lights. High time to focus on the effects this [...] follow and put into practice. ‘We hope that the guidelines we offer in the manual will ensure that our growers get the best performance out of their Natupol

• Horse-chestnut leaf miner

  5 mm in the firsts instar up to 3.5 mm in the fourth instar. The pupa is brown and is 2.9-4.5 mm long. The horse-chestnut leaf miner overwinters in the [...] a true cocoon in the mine. The percentage of larvae which spin true cocoons increases in each of the subsequent generations. Adults of the first generation [...] It was first observed attacking ornamental horse-chestnut trees in Macedonia in the 1970s, from where it spread to most of Europe. Since then, in all

• Earth Day 2023

  April 22, 2023

  protect the environment, support biodiversity, and contribute to the health and wellbeing of people and the planet. Our Positive Impact One of the key ways [...] production facility. In the last two years much of the reduction has also been driven by energy price hikes and warmer weather conditions. In 2022, we started [...] production facilities in the Netherlands, leading to a reduction of 89% in CO2 emissions from electricity use. Three out of four cars added to the KBV and Koppert