Consumers

around the world to combat pests and diseases in a natural and sustainable way. In this way, we hope to make an active contribution to a sustainable society [...] answer to your question in this list. Biological crop protection What is biological crop protection ? The idea behind biological crop protection is very [...] crops. The bumblebee is a close relative of the honeybee. In 1987, it was established that bumblebees could prove extremely useful in greenhouses for the

Black leg of seedlings

General Pythium is considered a ‘weak pathogen’, meaning that it can usually only affect plants that are in a sub-optimal condition or suffer from stress [...] through other similarly damaged spots. On the infected plant, new sporangia with zoospores are formed, that allow the disease to spread to neighbouring plants [...] Pythium affects roots, in particular those of seedlings. Infected plants lag in growth. Seedlings fall over (‘ damping-off ’). In slightly older plants,

Experience Centre

workers do what they do best. Did you know that the vision of bumblebees differs vastly to that of humans and that we use that difference to provide our [...] (Mon - Fri) from 9:00 AM to 5:00 PM. A tour takes an average of 1,5 hours and is suitable for groups of up to 15 visitors. In the case of bigger groups [...] on Veilingweg 14 in Berkel en Rodenrijs, the Netherlands. Practical info Our Experience Centre is aimed at target groups linked to agriculture and ho

Greenhouse whitefly

and the excess is excreted as honeydew, with larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of sucking [...] leaves can wilt and fall. Such leaf damage can in turn influence the development of fruit and lead to a reduction in yield. The honeydew deposited on fruit [...] the population is very large, feeding on plant sap can affect the physiology of the plant, as a result of which growth is retarded. In full sunlight, leaves

Predatory mites

so knowing the target pest is crucial. Scouting is essential to know where the pest is, how severe the infestation is and to identify the pest. Select the [...] What are predatory mites? Predatory mites are beneficial arthropods used in pest control to manage and reduce populations of harmful pests in various [...] sustainable alternative to chemical pesticides. Koppert is the pioneer in the development of predatory mite solutions, starting in 1967 with the rearing

Bhendi/Ladies finger

its growing period. It grows best in temperature range between 24 to 27 0 C and successfully grown in rainy season even in heavy rainfall areas. [...] About Bhendi also called as Okra in United States and United Kingdom. It belongs to Malvaceae family. It is vegetable crop cultivated throughout the tropical [...] dried or frozen for use during off-season. It is most heat and drought tolerant vegetable, but frost can damage the pods. Ladies finger requires long warm

Citrus mealybug

effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order [...] photosynthesis in the leaves also reduces flower and fruit production. In ornamental crops, the mere presence of mealybugs is sufficient to render the product [...] length. They produce little wax, so that the light yellow to pink body is visible through its waxy covering. There is often a darker longitudinal stripe

Early blight

concentric rings that are caused by sporulation. Species may differ in specific symptoms. Damage symptoms Alternaria solani causes small green to dark brown [...] General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause [...] of leaves, Alternaria solani can spread to the flowers (especially dangerous in crops for seed production) and to the crown. Sporulation of Alternaria occurs

Loose smut of barley

Infection mostly occurs before pollination and within one to two days after pollination. Damage symptoms Infection by Ustilago nuda f. sp. hordei r emains [...] olive-brown smut spores. Solution Finder Find solutions for your crop Damage symptoms How to prevent Loose smut of barley Use clean seed: Apply systemic fungicide [...] hordei affects barley and can destroy a large proportion of the crop. It is also known as barley smut, or loose smut of barley. Life cycle and appearance

Tomato leafminer

place in the soil or on the surface of a leaf, in a curled leaf or in a mine. If they leave the mines they build silk cocoons on the leaflets or in the soil [...] own tomatoes, belongs to the family of Gelechiidae . It is oligophagous, feeding mainly on Solanaceae species . The main host is tomato but it also feeds [...] nigrum. Damage symptoms The most distinctive symptoms of damage done by the tomato leaf miner ( Tuta absoluta) are the blotch-shaped mines in the leaves