• Amblyseius swirskii

  spaced in the crop. Release should be repeated after 4 weeks if the pest is not controlled. Consult a Koppert advisor or a recognized distributor of Koppert [...] leaf veins to rest. Their colour can vary according to the prey eaten, and varies from almost lucent whitish to opaque white or yellow. Due to their size [...] between 20 and 32°C (68 and 90°F). It is not effective at temperatures below 18°C/64°F. Amblyseius swirskii is sensitive to relative humidity below 60%. In

• Verticillium wilt

  m wilt Start with clean soil or substrate by heating it at a temperature if at least 65 o C for a minimum of 30 minutes Use clean seed, tubers or cuttings [...] blocked, which in turn causes the plant to wilt. Spores may be wind-dispersed to new hosts. In the senescent tissue, the resting mycelium or the microsclerotia [...] mycelium growth is limited. Dispersal from plant to plant takes place via water, soil particles, tools, etc. Verticillium can also be seed-borne and t

• Anagyrus vladimiri

  Anagyrus vladimiri is a parasitic wasp belonging to the Encyrtidae family. This parasitic wasp is particularly effective for mealybug control, a common pest affecting [...] parasitic wasp Anagyrus vladimir is available in a bottle ( Citripar ). Remove the label from the bottle according to the instructions Hang the bottle [...] per m 2 /release. Releases should be repeated at least 3 times at an interval of 1-2 weeks. Consult a Koppert advisor or a recognized distributor of Koppert

• Cotton aphid

  disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early enough [...] reduce yield. Plant sap is rich in sugars, but has a low protein content. Aphids therefore need to extract large quantities of sap to get sufficient protein [...] individuals (up to 1.8 mm long) are usually dark green to black, while aphids produced in overcrowded colonies at a high temperature can be much smaller (from

• Predatory insects

  capable of consuming a significant number of aphids in a short period. Aphidalia, featuring the ladybug species Adalia bipunctata , is a good solution aphid [...] in a decreased reliance on chemical pesticides. This reduction is beneficial for both the environment and human health, as it minimizes exposure to potentially [...] hunt and feed on various harmful pests, helping to maintain a balanced ecosystem. Predatory bugs play a vital role in controlling whitefly , thrips , c

• Asian citrus psyllid

  citri ), is an important pest of citrus in several countries as it is a vector of a serious citrus disease called greening disease or Huanglongbing. It is widely [...] plants and then disease is spread when adults fly to a healthy plant and injects bacteria into it as they feed. The disease can kill a citrus tree in as little [...] state of Florida is the most affected area by the vectored disease. Damage symptoms The psyllid is a sucking insect that inserts its mouthparts into plant

• Bacterial canker of tomato

  General Clavibacter is a quarantine organism in Europe, which means that strong efforts are used to prevent the bacterium from entering. When the occasional [...] infection is found, strict measures are taken to eradicate the infection. In tomato, growers must either destroy the infected crop entirely or, if the crop [...] tuber-borne and primary infection is mostly from infected propagation material. It spreads to other seedlings by touching the plants in greenhouse crops and by

• Root rot of carrot

  circular to irregular spots on the leaves that vary in colour from grey to almost black. The spots appear to be sharply defined, but under a magnifying [...] delicate, simple morphological features hence is not easy to place it at the generic level. Årsvoll was the first to identify and describe the fungus in Norway [...] the leaf will die off. The fungus appears to prefer older tissue. In the field, the disease is difficult to distinguish from both Cercospora and Alternaria

• Spider mites and other mites

  little as one to two weeks. This rapid development contributes to their ability to multiply rapidly and cause significant damage to plants if left uncontrolled [...] of the plant. The number of eggs laid by a single female can vary, and they can hatch within a few days to a couple of weeks, again depending on environmental [...] How to prevent mites Keeping your greenhouse crop free of plant mite infestations requires a combination of proactive measures. One key step is to maintain

• Western flower thrips

  s) is currently the most damaging thrips species in many greenhouse crops. The western flower thrips (Frankliniella occidentalis) can be found on a wide [...] weeds. It is an especially significant pest in cucumber, sweet pepper, eggplants, and many ornamental crops. Damage symptoms Thrips cause damage to plants [...] into the plant tissue with a saw-like ovipositor. Larvae are nearly transparent white or yellowish to orange-yellow, with a large head and bright red eyes