Mealybugs and scales

fruit are concerned, these often drop off; plant sap is low in proteins and rich in sugars. In order to gain an adequate intake of protein, mealybugs must [...] photosynthesis in the leaves also reduces flower and fruit production; in ornamental crops, the mere presence of mealybugs is sufficient to render the product [...] foliage, stunting, and in extreme cases eventual defoliation. However, it is mainly the great quantity of honey-dew that causes the damage because of the sooty

Angular leaf spot

leaves, that become the primary source of infection in the spring. The bacteria are also introduced in a crop in new transplants. This bacterium is very resistant [...] resistant to desiccation and can survive well in dry leaves or leaves in the soil, but not independantly in the soil. Under humid conditions, bacteria [...] General Xanthomonas fragariae is a leaf spot disease found in strawberry. Damage symptoms Xanthomonas fragariae initially causes small, water-soaked lesions

Botrytis

How to prevent Grey mould Make sure the crop grows regularly with not too much vegetative growth, in order to maintain a microclimate which is not humid [...] ventilation in greenhouse crops Remove diseased plants or plant parts in a closed plastic bag In tomato: prune with a knife and not by hand, to avoid rugged [...] Botryotinia fuckeliana / Botrytis cinerea ) is a commonly found fungus in many environments. It survives in plant parts like bulbs and crop residues or

Phytophthora blight

wetness is required. Dispersal is by wind and rain causes the pathogen to be returned to the soil from infected plants. Dispersal in the soil happens via water [...] higher water content than is optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs or in the soil in different stages: as oospores [...] Zoospores are spores with flagellae which enable them to move through water. Infection is usually from the root to the foot, but direct infection of the foot also

Aphids

virus Y (PVY) is transmitted by aphids in tomato in this way, as is the cucumber mosaic virus (CMV) in cucumber. How to prevent aphids To prevent aphid [...] belong to the family Aphididae, a family containing many species that cause damage in cultivated crops. The most significant aphids that occur in greenhouses [...] sap has a low protein content but is rich in sugars. Aphids therefore need to extract large quantities of sap in order to get sufficient protein. As a consequence

Whitefly

which growth is retarded. In full sunlight, leaves can wilt and drop. Such leaf damage can in turn influence the development of fruit and lead to a reduction [...] sticky. Dirt adheres to the fruit, and the growth of sooty moulds ( Cladosporium spp.) is encouraged. Such fruit is unsaleable. In serious cases the fruit [...] look at the video or go to our Youtube channel to see our whitefly control products in action. More whitefly control videos How to get rid of whitefly The

Bacterial wilt, brown rot

solanacearum is a quarantine organism in Europe and considered a bioterrorist organism in the United States. It is a commonly found soil-inhabitant in tropical [...] The vascular stem tissue is coloured brown and when the stem is cut, bacterial slime oozes from the wound. This is the way to distinguish it from Verticillium [...] xylem vessels. In potato, it is tuber-borne. Spread from plant to plant results from bacteria moving from the roots of infected plants to neighbouring plants

General Conditions Koppert

without prejudice to Koppert’s right to full payment of damages. I f it is agreed that Natural Enemies, Pollinators and/or Products are to be sent under condition [...] Specifically, the obligation to pay damages shall not cover damage as a result of loss of harvest, crop damage and/or damage due to deterioration of the structure [...] Buyer refuses to meet Koppert’s request to that effect, Koppert shall furthermore have the right to immediately demand the purchase sum, or to dissolve by

Biological seed treatment

nutrients in the root system and increases nutrient uptake; The enhanced root and shoot growth means that the early growth rate is optimized and that both the [...] results in a lower exposure of growers to chemicals and lessens their impact on the environment. The potential exposure of the soil to agrochemicals is also [...] (Panoramix) that increase crop resilience against abiotic stress, like drought-, salinity stress, and improve the uptake of plant nutrients. What is biological

Crop Protection

products. What is biological crop protection? Biological crop protection, often referred to as biocontrol, is a natural and sustainable approach to managing [...] benefits. Lower risk to human health Biological crop protection poses minimum to no risks to growers and consumers. It reduces exposure to toxic chemicals, [...] Crop protection in agriculture Crop protection is the practice of protecting plants against pests, diseases, and harmful influences to ensure healthy growth