• Potato aphid

  vegetable and ornamental crops grown in greenhouses are colonized, including tomato, aubergine and roses. Damage symptoms Nymphs and adults extract nutrients from [...] making the crop and its fruit sticky. Black fungal moulds ( Cladosporium spp.) grow on this honeydew, contaminating fruit and ornamental crops and rendering [...] rendering them unsuitable for market. At the same time, photosynthesis in the leaves is reduced, affecting production. Life cycle and appearance of Potato aphid

• American serpentine leaf miner

  leaf-fall and cosmetic damage. In tropical and subtropical areas this can lead to burning in fruit such as tomato and melon. Loss of leaves also reduces yield [...] highly polyphagous and thus lives on many host plants such as chrysanthemum, gerbera, gypsophila, celery, sweet pepper, pea, bean and potato. In greenhouses [...] gerbera and chrysanthemum. Today the insect is widespread across the whole world. Damage symptoms Leaf miners cause damage to plants both directly and indirectly

• Root rot of carrot

  in nonsterile soil remained viable at 0°C and 3°C for 12 months, at 6°C for 6 months, and at 12°C for 2 months, indicating a capacity to overwinter in [...] lesions of various shapes. The lesions can merge and eventually cover the entire surface of the carrot. The affected areas are firm, shallow, and clearly [...] root, leaf, and petiole lesions. Continuous light is best for in vitro sporulation. Spore germination in vitro requires free water. The pH for growth, s

• Amblyseius swirskii

  conditions for use of Amblyseius swirskii Amblyseius swirskii is most effective at temperatures between 20 and 32°C (68 and 90°F). It is not effective at temperatures [...] 60%. In tomato, use of Amblyseius swirskii is not recommended as it is hindered by the glandular hairs on the stems and leaves and does not build up a population [...] offering a sustainable and environmentally friendly alternative to chemical pesticides. Amblyseius swirskii for pest control Amblyseius swirskii is used for the

• Beet armyworm

  during the day and is active only at night. The forewings are grey-brown suffused with a dark brown or black. The head and thorax are brown and the abdomen [...] black. The colour and pattern of the caterpillars is highly variable and depends partly on the host plant, the stage of development and the climate. A full-grown [...] exigua) has become a regular problem for horticulturalists due to its resistance to nearly all insecticides, and its ability to develop on wild vegetation

• Citrus mealybug

  mealybugs, reduces the ornamental value of the affected plants. Fruit and flowers are also fouled, rendering them unfit for sale, and the reduced level of [...] damage on the crop in various ways: Nymphs and females extract the sap from the plant, stunting growth and causing deformation and / or yellowing of leaves [...] distribution and many and diverse host plants. In temperate regions of the world this mealybug poses a problem in greenhouse horticulture, and in the tropics

• Grower Koen - Embracing biological crop protection in agriculture

  trend, and he is determined to prepare for this new phase of sustainable agriculture. With his farm as a living example, Koen is an inspiration for others [...] of agriculture, where traditional and organic practices complement each other, and how organic and traditional farming are getting closer together. "The [...] increasingly critical. Society expects more and more that agriculture is environmentally friendly and responsible. And that the vegetables consumers eat are

• Apple scab

  browning, and early leaf drop Reduced tree vigor and potential loss of return bloom from heavy defoliation Lower fruit quality, storage potential, and marketable [...] of leaf wetness and reduces secondary infection cycles Shred or chop fallen leaves in autumn/winter to accelerate decomposition and reduce overwintering [...] disease infects leaves, blossoms, young shoots, and fruit, reducing fruit quality, marketable yield, and storage potential. Without management, economic

• Horiver Drystick

  Use Horiver Drystick for trapping and monitoring different flying insects. The traps work particularly well for bugs such as Lygus spp. and Nesidiocoris [...] largely covered by insects and/or debris Dosage For monitoring use one Horiver Drystick per 200 m 2 For trapping in hotspots use one Horiver Drystick per [...] ends and lateral ventilation openings Attach traps to wires or sticks at max. 30 cm above the crop and adjust height when plants are growing Do not place

• Koppert Foundation

  contribute to sustainable solutions for horticulture and agriculture and improvement of the health and availability of food and nutrition for those who need [...] can find more information in English and Dutch on www.koppertfoundation.org . Do you need help with explanation and/or application? Please contact your [...] most. Scope Koppert Foundation focuses on three domains: supporting projects for smallholder farmers providing education about our wonderful partnering with