• Citrus mealybug

  roses and gerbera. Additionally, the citrus mealybug ( Planococcus citri ) can also appear in cucumber, melon and aubergine. Damage symptoms Although most [...] their nourishment from roots, whilst others are gall-formers. A few species can also transmit harmful viruses. Mealybugs inflict damage on the crop in various [...] Cladosporium spp .) are often found growing on this honeydew. Additionally, the white, waxy secretion of the mealybugs, reduces the ornamental value of the affected

• Root rot of carrot

  in cold regions. Inoculum can survive in perennial (umbelliferous) weeds or alternate hosts and transfer to annual crops. As far as is known, Daucus carota [...] General Black spots on cold-stored carrots are a major problem and can lead to significant postharvest losses Several different fungal pathogens cause [...] diseases. When carrots are stored during winter, diseases on the carrot roots can continue to develop during storage. Alternaria radicina , Alternaria dauci

• HyFood takes habanero to another level with biological control

  Koppert and HyFood is another example of how implementing an integrated pest management program based on biocontrol can open doors to international markets [...] tests, they recommended us to use the products that have worked very well so far," said Martin Salazar, HyFood's production manager. One of the key factors

• Tobacco whitefly

  leaf all different developmental stages can be found together. When shaking infested plants, adults will first fly, then return to the underside of the leaves [...] and secreting honeydew. This can have the following consequences: If the population is very large, feeding on plant sap can affect the physiology of the [...] result of which growth is retarded. In full sunlight, leaves can wilt and fall. Such leaf damage can in turn influence the development of fruit and lead to a

• Cottony soft rot

  water-soaked lesions at the stem base. The plant above it wilts and rots. White, fluffy fungal mycelium grows on the lesions, giving this disease its name [...] name cottony soft rot. In the mycelium, big, dark sclerotia are formed. They can easily be seen with the naked eye and look like rat droppings. The symptoms [...] inside the plant and kills the host cells. On the infected plant tissue white, fluffy mycelium occurs with new dark sclerotia. The fungus also infects

• Caterpillars

  monitor pest activity and reduce flying populations. With Koppert’s biological solutions for caterpillars, professional growers can protect their crops effectively [...] the butterfly species that are active during the day can be strikingly colourful while moth flying at night are usually inconspicuously brownish are greyish [...] damage Caterpillars can cause serious economic damage. Most species feed on leaves and young shoots, and their enormous feeding capacity can rapidly decimate

• Southern blight

  mycelium is young it is white; later it darkens. There are many sclerotia. They are round and their diameter varies from 0.4 to 2 mm. They can be dispersed via [...] susceptible, but it can invade via direct penetration, generally close to the surface of the stem. In favourable conditions, the sclerotia can germinate in two [...] texture and humidity close to field capacity. In the southern USA, losses can reach 5% of annual production. Symptoms and damage Symptoms begin with brown

• Bacterial canker of tomato

  potatoes or other Solaneceaous crops can be planted for five years. On other fields on the same farm, no seed potatoes can be grown for one year after infection [...] blocked. The bacterium can survive some time in crop residues like volunteer tubers and potato crop residues. Infected tubers can infect healthy tubers [...] the plants in the infected area, with a substantial buffer zone. Replanting can only take place after thorough disinfection has been proven to the authorities

• Leaf miners

  miners belong to the order Diptera (the true flies ) and form the family Agromyzidae. This is a family of small flies whose larvae tunnel into the leaves of [...] mining the leaf tissue which can lead to desiccation, premature leaf-fall and cosmetic damage. In (sub)tropical areas this can lead to burning in fruit such [...] females can also reduce yield, although with the exception of ornamental crops, this is usually of less significance. Seedlings and young plants can be totally

• Orius laevigatus

  brown body with white markings on their wings. The wings lie flat over their backs when at rest, displaying a characteristic black and white pattern. Adults [...] which can supplement their diet when prey is scarce. By regularly inspecting plants and noting the presence of these life stages, growers can effectively [...] The natural enemy Orius laevigatus is available at Koppert as Thripor-L . How to use Orius laevigatus The predatory bug Orius laevigatus is available in