• GreenGuard by Dümmen Orange: For A Sustainable Chain

  November 6, 2018

  maximum quality' is what it says on the cover of the GreenGuard ornamentals brochure. This sentence is as clear-cut as it gets. Dümmen Orange works together [...] demanding that their suppliers use as few chemicals as possible on the flowers and plants that they deliver. This shift inspired Dümmen Orange to set a brand-new [...] starting with the production of chrysanthemum cuttings in Uganda. Was it possible to achieve a production of cuttings using a minimum of chemical products in

• Fusarium wilt

  system of the host plant and spreads upwards inside the plants. The other species are dispersed upwards on the outside of the plant. Most Fusarium species [...] wilt. First the leaves turn yellow and wilt, mostly on one side of the plant. Finally, the whole plant wilts. Other symptoms are brown discolouration of [...] the soil and on crop residues of infected plants as chlamydospores (thick walled mycelium cells) or mycelium. Survival is also possible on seed, greenhouse

• Natupol

  Pollination checklist Tomato Pollination Checklist Outdoor Pollination checklist Growing lights Pollination Checklist Tomato Plant Pollinator interactions [...] of crops, grown on surfaces bigger than 2000 m² and with approximately 25-35 flowers per m² per week. Crops Round, beef and plum tomatoes and other vegetable [...] crop and depends on environmental conditions. Always consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy

• Shore fly

  ( Scatella tenuicosta) do not attack plants directly, as they feed on green algae. However, they can transmit plant diseases and can be a nuisance to greenhouse [...] vicinity of water. They feed on algae. Other shore fly species have diverse feeding habits but the larvae of most species feed on rotting material. Shore flies [...] Frass deposited on leaves or flowers in ornamental crops, lettuce and herbs also causes cosmetic damage, and sometimes this can occur on such a scale that

• Very few greenhouse crops are safe from whitefly

  July 18, 2022

  Whiteflies multiply much faster on cucumber plants than on tomato plants, for example, and can survive much better on gerbera than on roses. It certainly has its [...] some plants offer a better food supply for whitefly . In addition, some host plants have properties that are less favored by insects: tomato plants, for [...] wide range of different host plants from all manner of families. Whitefly can appear on various vegetable crops, including tomato, cucumber, aubergine, courgette

• Gerbera

  gerbera is still popular and extensively used as a decorative garden plant or sold as cut flower. Domesticated cultivars are usually the result of crossing [...] The gerbera belongs to the family of daisies or Asteraceae . The flowering plant is originally from South Africa and grew among others in the Cape Province

• A step-by-step guide to whitefly control

  Integrated Pest Management (IPM), focusing on biological solutions. These pests favor a variety of crops such as tomatoes, roses, cucumbers, and even cannabis [...] Scout plants regularly, leveraging historical data to predict infestation trends. Introduce parasitic wasps at the first signs of whitefly presence on traps [...] whiteflies Eggs Lay eggs at the tops of plants; eggs turn brown to black within days. Lay eggs across the plant; eggs transition from yellow-green to brown

• Sciarid flies

  healthy plants. Direct damage is the immediate result of larvae feeding on the roots. The larvae feed mainly on decaying plant material and on algae and [...] generally do little harm to healthy plants, sciarid flies are particularly problematic in cuttings and other young growing plant material. Damage symptoms The [...] sciarid flies feed mainly on organic remains and the fungi that grow on them, although some species can also eat living plant material. The adults prefer

• Garden chafer

  stems of plants and on strawberry fruits lying on the ground. Both adult beetles and larvae are polyphagous and feed on a wide variety of plant species [...] larvae can destroy plants under field conditions. Established crops are more resistant to damage than young plants or recently planted cuttings. The beetles [...] larval stage when it feeds on roots of grasses and clover. The adults feed on the leaves of trees like oak, hazelnut and birch and on the flowers and developing

• Tobacco aphid

  chrysanthemum, and various pot plants and cut flower crops. Damage symptoms Nymphs and adults extract nutrients from the plant and disturb the balance of growth [...] the plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early enough in the season, the death of young plants. Retarded [...] young aphids are born as developed nymphs. They immediately start to feed on plant sap and grow rapidly. Aphids moult four times before reaching adulthood