• Aphidius colemani

  causing aphids to drop from the leaf and fall to the ground. Although many aphids die as a result, many will survive and migrate to other plants to begin new [...] colemani is most effective between 20 and 25°C (68 and 77°F). The effectivity is reduced at temperatures above 30°C/86°F. Behaviour of parasitic wasp Aphidius [...] a cocoon inside the aphid cuticle, causing it to swell. The cuticle turns from a hard, leathery brown to a golden yellow casing, known as a mummy. Parasitized

• Aphidoletes aphidimyza

  above 12°C/61°F, to ensure optimal conditions for oviposition. Apply Aphidoletes aphidimyza in an environment with a high relative humidity (> 70%) to get the [...] 20 and 30°C (68 and 86°F), effectivity decreases significantly at higher temperatures. As gall-midges are active at night, it is crucial to keep the night [...] the aphids, and the aphid species. The time required to consume an aphid can vary from a few minutes to several hours, depending on the age and nutritional

• European red mite

  mainly on the undersides of leaves but moves to upper leaf surfaces when the lower side becomes crowded. Contrary to the two-spotted spider mite , Tetranychus [...] hind end. The development from egg to adult goes faster at higher temperatures and takes approximately two weeks at 21°C; therefore there can be many generations [...] leaves and when these coalesce the leaves loose colour; this is often referred to as bronzing. When infestation is heavy, leaves can drop. Life cycle and appearance

• Horiver Disc

  Pests Root aphids , fungus gnats . Mode of action Insect pests are attracted to the colour of the sticky trap and get caught in the glue. Presentation Polysterene [...] and/or debris Dosage One Horiver Disc per plant. Storage temperature 0-32°C/32-104°F. Storage time See Best before date. Storage conditions In a cool,

• Artefeed

  introduction of Macrolophus pygmaeus before switching to Artefeed. Apply Artefeed weekly in the rows adjacent to the rows in the greenhouse where Macrolophus pygmaeus [...] therefore advise to take the necessary precautions. Precautionary measures Storage time after receipt 3 months. Storage temperature 8-25°C/47-77°F. Storage [...] densities. Mode of action As Macrolophus pygmaeus needs a continuous food source to maintain the population, Artefeed can be used as alternative food at low pest

• Bacterial canker of tomato

  strong efforts are used to prevent the bacterium from entering. When the occasional infection is found, strict measures are taken to eradicate the infection [...] whitish ooze with bacteria in the case of C lavibacter infection, but other than that the disease is difficult to distinguish from wilting caused by other [...] Replanting can only take place after thorough disinfection has been proven to the authorities. Potato growers lose their entire crop of the affected field

• Pollination checklist Growing lights

  need max. 2 hours to return to their hive 15:00 Do not keep a hive closed for longer than one day unless additional pollen is fed to the bees. Bumblebee [...] . The maximum temperature should be max 28 °C. 17:00 16:00 14:00 During other weeks at higher than 28 °C temperatures you can place them lower in the [...] turned on, the more time (overlap with daylight) there is for the bumblebees to pollinate. For pollination, bumblebees need at least 28 Watt/m2 PAR light

• Spider mites and other mites

  as little as one to two weeks. This rapid development contributes to their ability to multiply rapidly and cause significant damage to plants if left u [...] ability to photosynthesize, which can lead to reduced yields and quality of fruits and vegetables. Broad mite damage Broad mites cause a distinct type of damage [...] pairs of legs. During this stage, the larvae start to feed on plant sap and undergo molting to transition to the next stage. Nymph: After the first molt, the

• Deltatrap

  glue and are easy to detect, count and identify. Trapping males also aids in reducing the number of eggs laid by females as they fail to mate. Presentation [...] mealybugs . Crops Protected and outdoor crops. Mode of action The Deltatrap needs to be used in combination with Pherodis pheromone dispensers. The dispensers [...] greenhouse) Distribute the traps as evenly as possible over the area, in order to avoid interference Replace the sticky insert when largely covered by insects

• Drososan

  action The Drososan trap needs to be used in combination with Fruit Fly Attractant. The spotted wing drosophila are attracted to the trap by the liquid attractant [...] trap they drown in the attractant. The trap has been specifically designed to prevent the undesired trapping of other insects. Presentation One trap with [...] trap on a branch or stick using the enclosed hook The most effective place to hang the traps is in the shade along the sides of the plot, in the hedge (if