Aphidius ervi

parasitize. Because of this, the disturbance of aphid colonies can have a serious impact. The aphids can be spread through the crop, and it has been shown [...] ervi is most effective between 20 and 25°C (68 and 77°F). This natural enemy is not effective at temperatures above 30°C/86°F. Behaviour of the parasitic [...] to its effectiveness. An Aphidius ervi female wasp can parasitize hundreds of aphids within two days. Aphidius ervi is used for the control of the following

Consumers

before the tomato can actually start to grow. In nature, insects and other animals take care of the pollination and therefore the formation of fruit. Honeybees [...] Every day, Koppert helps growers and farmers around the world to combat pests and diseases in a natural and sustainable way. In this way, we hope to make [...] professional growers and farmers. In order to provide you with the best possible service as a consumer, we have drawn up a list of frequently asked questions

Asian citrus psyllid

stems and on leaves of all developmental stages. Nymphs feed on young leaves and stems, continuously secreting copious amounts of honeydew and a thread-like [...] ted 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 [...] psyllid, ( Diaphorina citri ), is an important pest of citrus in several countries as it is a vector of a serious citrus disease called greening disease or

Spical

californicus is most effective at temperatures between 13 and 32°C (55 and 90°F) and is sensitive to relative humidity below 60%. Combined use Can be combined with [...] with Phytoseiulus persimilis and Feltiella acarisuga . Precautions Application of this product can cause sensitization or allergic reactions, we therefore [...] Natutec Airbug or Natutec Airobug Dosage The dosage of Spical depends on climate, crop and pest density and should always be adjusted to the particular situation

Crazy roots, hairy roots, crown gall

four species cause the growth of galls on the stems, which are first white and later turn brown. Only Rhizobium radiobacter causes galls and tumours on [...] dispersed by rain and wind and by humans and tools. Until now, no bacteria have been isolated from crazy roots. This disease seems to be caused by a change in [...] hormonal system of the plant resulting from the Rhizobium infection. Rhizobium rhizogenes puts a Ri-plasmid in the plant tissue and causes a genetic change

Western flower thrips

(Frankliniella occidentalis) can be found on a wide variety of plants, including many vegetable and ornamental crops in greenhouses, and on various weeds. It is [...] spotted wilt virus (TSWV) and impatiens necrotic spot virus (INSV). Both viruses affect a wide range of plants, and often a single host plant may be infected [...] adults both pairs of wings are fully developed. Damage symptoms Thrips cause damage to plants by piercing the cells of the surface tissues and sucking out their

Powdery mildew

outdoor grown rose and other Rosaceae , the fungus causing powdery mildew is extremely sensitive to water and ‘hides’ on the underside of the leaves. Therefore [...] production, so the net effect of the RH is very small. Wind and draught in greenhouses promote disease. In greenhouses, dispersal of spores over small distances [...] General Powdery mildew is a fungal disease that is caused by many different species of fungi such as Erysiphe, Podosphaera, Oïdium, Leveillula. Damage

Predatory mites

Predatory mites can build up a population in the crop and control pests for a long period of time. Reduced pesticide dependence: The integration of predatory [...] predatory mites can lead to a reduction in the use of chemical pesticides, thereby lowering the ecological footprint of horticultural and agricultural operations [...] your preference and the type of crop. Monitoring: Regularly monitor the pest and predatory mite populations to assess the effectiveness of biological control

Angular leaf spot

most important, but also all types of vascular tissue of the crown can be infected, creating a look similar to that of a Phytophthora fragariae infection [...] on the leaves and form a secondary source of infection. They are dispersed by rain, irrigation water or handling of the plants. Infection of the plants happens [...] fragariae is a leaf spot disease found in strawberry. Life cycle and appearance of Angular leaf spot Xanthomonas fragariae overwinters in plants and dead leaves

Chrysopa-E

Echinothrips and butterfly and moth eggs. Mode of action Larvae of the lacewing attack their prey and suck their body fluids. Visual effect Prey is sucked [...] on mealybugs, thrips and other insects Effective at low temperatures Can be used preventively Get in touch with us Pests Aphids and other pests, like mealybugs [...] in infested areas and repeated at weekly intervals until control is achieved. Consult a Koppert advisor or a recognized distributor of Koppert products