• Obscure mealybug

  cause damage in ornamental crops such as passiflora, pelargonium, and orchids. Pseudococcus viburni is difficult to control biologically. Damage symptoms [...] 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

• Vine 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 [...] this mealybug is mostly found on grapevines, but also on figs and pomegranates. Damage symptoms Mealybugs inflict damage on the crop in various ways: Nymphs [...] photosynthesis in the leaves also reduces flower and fruit production. The vine mealybug causes direct and indirect damage. If the population is high, whole

• Macadamia nut borer

  been linked to any other crop or indigenous host in South Africa. It is a quarantine pest and control procedures have to be carried out to enable export [...] export. Damage and symptoms Damage before shell hardening is caused by the larvae which bore into the fruit. In small nuts the entire kernel is eaten, whereas [...] the head capsule is brown. The pupa is dark brown and (if pupation takes place in the soil) encased in a cocoon of soil particles. There is no cocoon if pupation

• 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

• 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

• Leafhoppers

  Caterpillars are highly destructive pests that feed on leaves, stems and fruits, causing serious damage to greenhouse and field crops. Their feeding reduces [...] plants and directly affects yield and quality. Effective caterpillar control is therefore essential for maintaining healthy and productive crops. Biological [...] Biological control of caterpillars combines monitoring and control strategies that target different life stages of the pest: Beneficial nematodes Pheromone traps

• 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

• 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

• Thrips Identification Guide

  found mainly in flowers. Fruit damage in strawberry, vector of TSWV, INSV, TCSV. Broad host range of flowering plants with pollen. Damage reported on [...] also called ‘thunderflies’. Can be found in high numbers on sticky traps in greenhouses. Do not cause any damage to greenhouse crops. Cereals and grasses [...] occurs in the substrate. Reproduction time is about 18 days at 25°C. Females lay 20-60 eggs in total, depending on the host plant. Feeding results in silvery

• 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