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

Impatiens thrips

been able to spread as a consequence of the trade in foliage plants. Impatiens thrips (Echinothrips americanus) has a wide range of hosts. In addition to [...] Adults are found on both upper- and undersides of the leaves. This species of thrips is relatively large. Both males and females are dark brown to black [...] Damage symptoms Thrips cause damage to plants by piercing the cells of the surface tissues and sucking out their contents, causing the surrounding tissue

Sciarid flies

although some species can also eat living plant material. The adults prefer humid habitats and are attracted to a broad range of pathogenic and non-pathogenic [...] result of larvae feeding on the roots. The larvae feed mainly on decaying plant material and on algae and fungi present in the soil. They, however, can also [...] plants that are kept humid and well-watered are particularly at risk. Life cycle and appearance of Sciarid flies The life cycle of sciarid flies has the following

Silver-Y moth

other ornamental crops, where they can cause considerable damage. Life cycle and appearance of Silver-Y moth The forewings of the silver-Y moth ( Autographa [...] underside of the leaves of their host plant, usually separately but sometimes in small groups. These eggs are a greyish white, suffused with a blue-grey [...] there are alternating light and dark stripes. A characteristic feature of this caterpillar is the oscillatory swaying movement of the anterior end. The ca

Ervibank

after receipt Fill a hanging basket of 20 cm diameter with a piece of wetted rock wool Take the tussock of cereal plants from the box and place it on the [...] direct light, preferably in a spot where it can remain for 10-12 weeks Fit a dripper to the tussock for continuous supply of water and nutrients, arrange proper [...] the product can be stored for 1-2 days. Storage temperature 5-8°C/41-47°F. Storage conditions Store in a dark place. In case of excess of condensation

Mirical-N

Especially tomato (can cause damage to other plants). Mode of action Nymphs and adult predatory bugs actively search for their prey and suck them out. The [...] to get out of the carrier material Make sure the material is not disturbed for at least a few hours after application Dosage The dosage of Mirical-N depends [...] depends on climate, crop and pest density and should always be adjusted to the particular situation. Use for control of hotspots. Introduction rates typically

Shore fly

lettuce and herbs also causes cosmetic damage, and sometimes this can occur on such a scale that growth, particularly of young cuttings, can be retarded [...] about 4 to 5 mm long, and stout with short antennae and short legs. The head of the adult has a pair of conspicuous eyes. The wings have grey-brown patches [...] cycle and appearance of Shore fly The life cycle of the shore fly ( Scatella tenuicosta ) has the following stages: egg, three larval instars, a pupa and

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

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 sensitisation 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