• Apple collar rot

  lesions occur. In strawberry, the heart leaves wilt first, then the whole plant. Life cycle and appearance of Apple collar rot Phytophthora species are very [...] spreads more rapidly when the water content of the soil or substrate is higher than normal or optimal for crop growth. How to prevent Apple collar rot [...] Phytophthora cactorum is a plant pathogen that causes root rot, rhizome rot of strawberry, apple rot, apple collar rot and crown rot. It has an extremely

• Onion thrips

  leaves and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations [...] finally the adult insect. The eggs of the onion thrips (Thrips tabaci) are laid in leaves, flower petals and in the soft parts of stalks. They are inserted into [...] thrips (Thrips tabaci) has been identified as an important vector of tomato spotted wilt virus.

• Damping-off

  the leaf tips turn yellow, for example in flower bulbs. At first, the plants recover during the night, but later the plants wilt irreversibly. In potted plants [...] and very little of the root system survives. On the border between air and soil or substrate the plant turns brown. A typical symptom of a Pythium infection [...] infection is the easy stripping of the skin from the root cortex with a finger nail. Life cycle and appearance of Damping-off Pythium belongs to the Oomycetes

• Whitefly

  The larvae need a lot of nutrients for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and the excess [...] productive crops and prevent the spread of diseases. Biological control of whiteflies uses a combination of natural enemies and tools that target different [...] plant sap can affect the physiology of the plant, as a result of which growth is retarded. In full sunlight, leaves can wilt and drop. Such leaf damage can

• Cutworms

  usually observed as a cutting of young seedlings, often causing death of the cut seedlings. Sometimes wilting is observed because of partial cutting. A larva [...] worldwide. Important species are for instance the black cutworm Agrotis ipsilon and the turnip moth Agrotis segetum . The larvae of these moths usually feed on [...] continues cutting. Therefore, relatively small populations of cutworms can destroy entire stands of crops, such as cotton or maize. As plants become larger

• Grower Koen - Embracing biological crop protection in agriculture

  application of biological crop protection.| The future Koen's vision of the future of agriculture is hopeful. He believes that the reduction of chemical methods [...] to prepare for this new phase of sustainable agriculture. With his farm as a living example, Koen is an inspiration for others striving for more sustainable [...] With the growing availability of knowledge and the number of biological crop protection products, he also sees opportunities for traditional methods to evolve

• Greenhouse whitefly

  The larvae of whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and [...] plant sap can affect the physiology of the plant, as a result of which growth is retarded. In full sunlight, leaves can wilt and fall. Such leaf damage can [...] can be transmitted. The consumption of plant sap and secreting of honeydew by whiteflies reduce the aesthetic value of crops. This is particularly important

• Thrips

  misshapen. Thrips are also responsible for the transmission of viruses, the best known of which is tomato spotted wilt virus (TSWV), mainly transmitted by [...] Beneficial fungi can provide an additional line of defense. With Koppert’s biological solutions for thrips, professional growers can achieve reliable [...] crop quality and productivity. Solutions for thrips control Learn more about What are thrips? Several species of thrips are a major problem in greenhouse

• Western flower thrips

  leaves and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations [...] important vector for both tomato spotted wilt virus (TSWV) and impatiens necrotic spot virus (INSV). Both viruses affect a wide range of plants, and often [...] insect. The eggs of the western flower thrips (Frankliniella occidentalis) are laid in leaves, flower petals and in the soft parts of stalks. They are

• Tobacco whitefly

  its high level of resistance to many insecticides and its propensity for the transmission of viruses. Life cycle and appearance of Tobacco whitefly The tobacco [...] Bemisia tabaci is known for the transmission of viruses, including TYLCV in tomato. The consumption of plant sap and secreting of honeydew by whiteflies [...] peppers, yellowing of the flower stalks in gerbera, and serious yellowing of the leaves of French beans. Other symptoms include the appearance of chlorotic patches