• A life-long passion for predatory mites

  September 30, 2024

  services, we have managed to stay close to growers for generations. We also stay close to our markets by keeping daily contact with our Sales and Marketing [...] listening to growers and anticipating their problems is a daily routine at Koppert. It means that a number of factors need to work together. ‘Thanks to our [...] future. At Koppert we are on a mission to change the face of agriculture; to offer our biological solutions to growers as a sustainable and reliable a

• Rose aphid

  symptoms Infestations with rose aphids retard the growth of buds and new shoots. Foliage and flowers are often disfigured and contaminated with sticky honeydew [...] cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with unfertilized [...] viviparous females continuing to produce new generations of females. Aphids moult four times before reaching adulthood. With each moult they shed white skin

• Black tea thrips

  instars then moult to the prepupal stage which is light yellow with red eyes and short wing pads. The pupal stage is slightly larger, with longer wing pads [...] covered with small droplets of black excrement from the thrips. Life cycle and appearance of Black tea thrips Adult black tea thrips are dark brown with the [...] surface first and, as feeding progresses and the population increases, moves to the upper surface. The leaves become discoloured and become distorted between

• Apple scab

  management with beneficial microorganisms that contribute to healthy root development, improved plant vigor, and increased crop resilience. Integrated with orchard [...] support. Management should aim to limit primary (ascospore) infections in spring and reduce overwintering inoculum to prevent severe epidemics. Cultural [...] management, regular monitoring, and integrated management measures are essential to limit disease development and protect fruit quality and tree health. Damage

• Geranium aphid

  cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with unfertilized [...] viviparous females continuing to produce new generations of females. Aphids moult four times before reaching adulthood. With each moult they shed white skin [...] formed from May onwards and are responsible for spreading the infestation to other strawberry plants. Acyrthosiphon malvae rogersii can spread strawberry

• Lyprauta

  reddish. The pupae are white to yellow and embedded in a dense web. Adult flies are long and slender and have a dark brown head with short antennae. The thorax [...] thorax is brownish-yellow and the abdomen brown with yellow stripes. The wings are transparent light brown with clearly visible veins and spots. The keroplatid [...] trinidadensis and Lyprauta chacoensis (family Keroplatidae) have been associated with root damage in potted orchids, especially in greenhouses in the Netherlands

• Mottled arum aphid

  leaves can reduce photosynthesis and also result in an unattractive plant with a much lower market value. Neomyzus circumflexus can also transmit plant [...] of Mottled arum aphid Aphids moult four times before reaching adulthood. With each moult they shed white skin, betraying their presence in the crop. R [...] Reproduction of the mottled arum aphid is entirely by parthenogenesis, with unfertilized viviparous females continuously producing new generations of females

• Pear psylla

  developing fruits with a sticky black layer. Life cycle and appearance of Pear psylla Adults pear psyllas are 2-3 mm long and orange red to blackish. They [...] are clear with dark veins. The eggs are oval, approximately 0.3 mm long and yellowish orange in colour. The nymphs are initially yellowish with clearly visible [...] visible purplish-red eyes. Later instars are purplish to reddish brown with whitish longitudinal stripes and blackish markings on the head and body. Pear

• Potato aphid

  is, with unfertilized viviparous females continuing to produce new generations of females. Aphids moult four times before reaching adulthood. With each [...] sugars, but has a low protein content. Aphids therefore need to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the [...] days distributed throughout the world. It is a highly polyphagous species with a preference for Solanaceae (particularly potato), but has also been identified

• Large blackberry aphid

  very similar to the large raspberry aphid Amphorophora idaei . As both aphid species are host specific the host plant is the simplest method to distinguish [...] cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with unfertilized [...] viviparous females continuing to produce new generations of females. Aphids moult four times before reaching adulthood. With each moult they shed white skin