Green peach aphid

therefore need to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit [...] and appearance of green peach aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. When [...] families. Damage symptoms Of all the aphids , the peach potato aphid ( Myzus persicae subsp. persicae ) is the most important vector of viral diseases. It can

Geranium aphid

appearance of Acyrthosiphon malvae rogersii Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. [...] General Acyrthosiphon malvae rogersii is a pest of strawberry that is widely distributed in northern and western Europe. Damage symptoms Wingless aphids [...] strawberry foliage, particularly along the petioles. In outdoor strawberries they reach their peak in June. Winged aphids are formed from May onwards and

Shore fly

very commonly, often in the vicinity of water. They feed on algae. Other shore fly species have diverse feeding habits but the larvae of most species feed [...] flowers in ornamental crops, lettuce and herbs also causes cosmetic damage, and sometimes this can occur on such a scale that growth, particularly of young [...] young cuttings, can be retarded. Life cycle and appearance of Shore fly The life cycle of the shore fly ( Scatella tenuicosta ) has the following stages: egg

Oleander aphid

can be found in tropical to warm temperate regions throughout the world. It probably originated in the Mediterranean region, the origin of its principal [...] and cauda (tip of abdomen). Nymphs are similar to apterae in appearance except that they are smaller. Size ranges from 1.5 to 2.6 mm in length. Females [...] eggs and that the progeny are clones of the adult female. The nymphs feed in colonies on the shoots at the top of the plant. Nymphs progress through five

Rhyzobug

Aulacaspis spp ., and other species of armoured scale insects. Mode of action Adults and larvae feed on all stages of armoured scale insects. Visual effect [...] effect Small scales are consumed entirely. In larger scales feeding damage is visible as irregular holes in the scale cover. Pack size 500 adults. Presentation [...] scales are detected in the crop. Releases should be repeated once or twice. Consult a Koppert advisor or a recognised distributor of Koppert products for

Tomato moth

females of the tomato moth (Lacanobia oleracea) deposit their spherical eggs on the underside of leaves in groups of 50 to 300, often arranged in layers [...] y. In fruiting vegetables, large holes can be formed in both green and ripening fruit. The second generation of larvae often causes greater loss of fruit [...] particularly a pest in greenhouses but can also inflict damage on outdoor crops. It is a polyphagous species feeding on plants of 14 families including

Orchid

no less than 28,000 known species, divided in about 763 genera. In addition, the flowers of orchids come in many different arrangements. Some only have [...] consist of many flowers. The majority of orchids which are commercially sold is tropical or subtropical. There are varieties however that grow in colder [...] About The orchid is part of an extremely large and diverse of flowering plants, the Orchidaceae or the orchid family . The plant’s flower are usually colourful

Tomato leafminer

place in the soil or on the surface of a leaf, in a curled leaf or in a mine. If they leave the mines they build silk cocoons on the leaflets or in the soil [...] cycle and appearance of Tomato leafminer The female moth of the tomato leaf miner ( Tuta absoluta ) lays about 260 eggs. The eggs of the tomato leaf miner [...] tomato leaf miner (Tuta absoluta), a major pest of field- and greenhouse-grown tomatoes, belongs to the family of Gelechiidae . It is oligophagous, feeding mainly

Municipality Enschede: Entonem nematodes against oak processionary caterpillar

The Municipality of Enschede started using nematodes for the first time in the spring of 2021 to try to halt the spread of the oak processionary caterpillar [...] the project manager of the oak processionary caterpillar for the Municipality of Enschede. ‘We use Koppert’s nematode product Entonem in locations where we [...] the use of nematodes in following seasons,’ explains Klein Breukink. ‘But as I’ve already mentioned, the planning benefits and maintenance of biodiversity

Mottled arum aphid

they produce large amounts of honeydew, which provides an excellent substrate for the growth of black sooty mould. Large areas of mould covering the leaves [...] continuously producing new generations of females. There is no sexual stage in the life cycle. Wingless females of the mottled arum aphid are shiny whitish [...] a cosmopolitan distribution and a wide host range. In temperate climates it is primarily a pest in greenhouses where it attacks many ornamentals , including