• Blackcurrant aphid

  spinal stripe. The distal third of the siphunculi is slightly swollen. In spring, the blackcurrant aphid lives on the underside of the young leaves of [...] each moult they shed white skin, betraying their presence in the crop. Wingless females of the blackcurrant aphid are 1.3-2.6 mm long and pale greenish white [...] General The blackcurrant aphid, Cryptomyzus galeopsidis , attacks black currant and also red current. It is widespread throughout Europe and also present

• Blueberry aphid

  white skin, betraying their presence in the crop. Wingless females of the blueberry aphid are pale yellow-green. The siphunculi are long and straight. Blueberry [...] Blueberry aphids overwinter as eggs on blueberry bushes. The fundatrices (founding mothers) emerging from the eggs produce wingless and winged parthenogenic females [...] General The blueberry aphid, Ericaphis fimbriata or Ericaphis scammelli , is most likely of North American origin and was probably introduced into Europe

• Crazy roots, hairy roots, crown gall

  crown gall The primary source of infection by Rhizobium rhizogenes has not yet been defined. The assumption is that the bacteria survive in the soil, but [...] caused by a change in the hormonal system of the plant resulting from the Rhizobium infection. Rhizobium rhizogenes puts a Ri-plasmid in the plant tissue and [...] Adjust the work order in greenhouses to fit with the hygiene protocol Disinfect the nutrient solution in order to prevent biofilm growth inside the irrigation

• Don Sanchez Fresh innovates with biological control in avocados

  such as raspberries, led them to make the decision to implement this tool in the production of Hass avocado. The result has been an effective and safe [...] your fear. You need the help of Koppert consultants to know which substances affect the performance of beneficial insects. It also takes a lot of dedication [...] farmers must take a step forward to stay in the market. Fabián Alejandre, avocado orchard coordinator at Don Sánchez Fresh, says: "One of the reasons why

• Spotted Wing Drosophila

  unripe fruits. The larval development takes place in the fruit. The larvae pupate either fully or partly in the fruit, or outside the fruit on the ground. [...] oviposition, the respiration tubes extend from the fruit but are difficult to see. Larval feeding in the fruit leads to fruit tissue collapse. Even if the fruits [...] fruits have not collapsed, the occurrence of larvae within the fruit makes them unmarketable. The punctures made by the oviposition by D. suzukii exposes fruits

• Sustainable cultivation goes much further than pests and natural enemies

  April 19, 2018

  presenting his view on the future at the headquarters of Koppert Biological Systems in Berkel en Rodenrijs, the Netherlands. The interactions between plant [...] other knowledge institutes.’ Nevertheless, the technology used in the research is becoming ever cheaper. ‘Take the genome, for example. Around ten to fifteen [...] Peter Maes points to the consumer, who has a romanticized notion of natural cultivation. ‘He or she thinks of the sun, the fresh air of the great outdoors,

• Rose aphid

  presence in the crop. Wingless 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 [...] dark in colour. The siphunculi are black and bent outwards. The rose aphid usually overwinters on rose bushes in the egg stage, although in mild winter [...] 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

• Common cockchafer

  years for the larvae to fully develop. The grubs are 10 to 20 mm in the first autumn, 30 to 35 mm by the following autumn, and 40 to 46 mm in the spring of [...] General The cockchafer ( Melolontha melolontha) , also known as the doodlebug or May bug is a European beetle of the genus Melolontha, in the family S [...] longitudinal ribs each. The abdomen is black, with typical triangular white spots below the elytra. When just laid, the oval eggs of the common cockchafer (

• Large raspberry aphid

  to reduce yield by direct feeding damage. The major problem is the spreading of various raspberry viruses by the aphids. Life cycle and appearance of Large [...] antennae, legs and siphunculi. The cauda is short and triangular. Overwintering eggs of the large raspberry aphid are laid near the base of vegetative canes [...] in spring, the aphids mainly feed on the underside of leaves and start to reproduce parthenogenetically. They are very mobile and drop from the plant when

• Large blackberry aphid

  siphunculi. The cauda is short and triangular. The aphids overwinter as eggs on blackberry plants. After emerging in spring, the aphids mainly feed on the underside [...] host specific the host plant is the simplest method to distinguish these two species. The large blackberry aphid is widely distributed in Europe and also [...] General The large blackberry aphid, Amphorophora rubi , is very similar to the large raspberry aphid Amphorophora idaei . As both aphid species are host