• Municipality Doetinchem: Entonem nematodes managing oak processionary caterpillar

  breaching the monocultures of the oak and stimulating the natural enemies of the oak processionary caterpillar. As already stated, the use of nematodes is an [...] oak trees in the forests and plantations around Doetinchem. Marc van Rijswijk is the spokesman for Buha, the implementing organization for the Municipality [...] nematode product Entonem . A major advantage is that the bycatch of other caterpillars is much lower, which is a great benefit to biodiversity. In mid-April

• Mycotal - Effective at lower temperatures

  regime of 5 °C at night and 12 °C during the day, mimicking a cold day in the greenhouse. The lines are predicted values and the ribbons around the lines [...] temperature regime of 5 °C at night and 14 °C during the day, mimicking a cold day in the greenhouse. 60 40 The lines are predicted values and the ribbons around [...] temperature regime of 5 °C at night and 14 °C during the day, mimicking a cold day in the greenhouse. 10 5 The lines are predicted values and the ribbons around

• Our new branding: inspired by nature

  January 17, 2022

  importance of plant protection above and underground. The natural shapes and colours of the new Koppert brand express the connectivity with nature, and the unlimited [...] says Maes. The Koppert ‘K’ is designed to aim forward: always looking ahead for new sustainable solutions. In addition, the symmetry symbolises the equal [...] reflects our connection to nature. ‘Our mission to contribute to the health of people and the planet by partnering with nature has led us to where we are today:

• Greenhouse whitefly

  General The greenhouse whitefly ( Trialeurodes vaporariorum ) is one of the major pests of vegetable and ornamental crops in greenhouses throughout the world [...] 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 [...] whereas the rest of the larvae stadia remain flattened on the leaf. The fourth larva stadium develops into a white, oval case encircled by a ring of erect

• Glasshouse potato aphid

  deformations in the growing tip of the plant. Precisely where the plant is pierced is unimportant. The piercing of the lower leaves in the crop can cause [...] produced) lifecycles. There is no alternation of hosts, and the two types of life cycles occur on the same host plant. The aphid can overwinter not only [...] leaves and curled leaf margins. The immediate effects of piercing by the aphids are visible in lower leaves in the form of yellow patches. Heavy yellowing

• Black tea thrips

  droplets of black excrement from the thrips. Life cycle and appearance of Black tea thrips Adult black tea thrips are dark brown with the apex of the abdomen [...] symptoms The black tea thrips feeds primarily on the foliage of ornamental plants. It attacks the lower surface first and, as feeding progresses and the population [...] to remain in the shaded areas on the plant. The eggs are white and banana-shaped and are inserted singly in plant tissue by the females. The early larval

• Rose aphid

  females of the rose aphid are 1.7-3.6 mm long and green or deep pink to red-brown. The antennae and sometimes the head is dark in colour. The siphunculi [...] General The rose aphid, Macrosiphum rosae , is a serious and often abundant pest of roses. It is virtually cosmopolitan and widely spread in Europe. Damage [...] Damage symptoms Infestations with rose aphids retard the growth of buds and new shoots. Foliage and flowers are often disfigured and contaminated with sticky

• Geranium aphid

  General Acyrthosiphon malvae rogersii is a pest of strawberry that is widely distributed in northern and western Europe. Damage symptoms Wingless aphids [...] spreading the infestation to other strawberry plants. Acyrthosiphon malvae rogersii can spread strawberry mottle virus. Life cycle and appearance of Acyrthosiphon [...] generations of females. Aphids moult four times before reaching adulthood. With each moult they shed white skin, betraying their presence in the crop. Ac

• Flies

  both directly and indirectly. The type of damage depends on the species of the flies. Direct damage is the immediate result of larvae feeding on root hairs [...] nuisance, are particularly small flies of the families Sciaridae ( sciarid flies ) and Ephydridae (shore flies). The larvae of these insects generally live on [...] their large number. Larvae of flies of the family Keroplatidae (mainly Lyprauta sp.) can cause damage in potted orchids. The Spotted Wing Drosophila has

• Buckthorn-potato aphid

  half the body length. The aphids overwinter as eggs on buckthorn. After emerging in spring, the aphids mainly feed on the underside of leaves of their [...] does not cause plant deformation. The major problem in potatoes is the transmission of viruses. Life cycle and appearance of Buckthorn-potato aphid Aphids [...] usually found in the lower parts of the plants and are not very mobile. In autumn, winged males and females are produced, which return to the primary host