• New Strain Of Green Peach Aphid, Myzus Persicae, Requires More Aggressive Beneficial Insects

  September 1, 2023

  Myzus Persicae After a thorough diagnosis of the new strain, Koppert’s R&D established two approaches: A quick fix strategy, and a long-term strategy with [...] R&D team in Spain found a new parasitic wasp species that is more effective. We are also testing entomopathogenic fungi that grow on aphids and a ladybird [...] battling to control a new strain of the green peach aphid , Myzus persicae , that presents an increasingly frequent and harmful challenge in greenhouses. Koppert

• Phytophthora blight

  optimal for crop growth. Phytophthora overwinters in roots, infected tubers and bulbs or in the soil in different stages: as oospores (sexual overwintering [...] and white fluffy fungal growth on the leaves. The centre is grey-brown with a light-green edge. On the stem, elongated brown lesions occur, usually circling [...] blueish lesions appear, that can be seen through the skin. The Great Famine was a period of mass starvation caused by this disease which ravaged potato crops

• Gummy stem blight

  cucumis (Didymella bryoniae) is a fungal plant pathogen that causes gummy stem blight. Damage symptoms Mycosphaerella cucumis in cucumber causes brown lesions [...] the leaves Pick flowers within two days after opening in areas suspected of disease (only feasible in high-wire crops) Pick and remove dead and diseased leaves [...] spores, become visible. On the leaves, round and extending lesions may occur. In cucumber, the most important symptom is internal fruit rot, which can only

• Inspired by Nature: New design, Same Trusted Quality

  February 1, 2023

  Introducing A New Design For Koppert Products After introducing our new brand identity in January 2022, Koppert is entering the next phase. We proudly [...] pleased with our product branding, which is characterised by a green, natural look. Perfectly in line with our branding: ‘Inspired by Nature’. And though our [...] includes several new practical features. A range of supportive colours make each product easily recognisable. In addition, barcodes enable scanning and

• Obscure mealybug

  the males form a dark false pupa followed by a pupa in rapid succession. The actual pupa develops inside a white, cottony cocoon. After a complete metamorphosis [...] effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order [...] onwards are covered with a white waxy material in the form of powder, threads, spiky projections or platelets. Eggs are laid in a sticky, foamy mass of wax

• Beetles

  displays an enormous variety of form, size and habit. A number of species are a serious pest in crops or stored products. There are many useful beetles [...] aphids . Beetles undergo a complete metamorphosis, that is, the larvae do not resemble the adult at all, and must pass through a pupal instar before reaching [...] The pupae do not make a cocoon and will already display many similarities with the adults. The adult beetles usually possess a pair of membranous wings

• Flies

  and shore flies are mainly a problem in greenhouses. Their larvae live in the ground and prefer moist substrates that is rich in organic matter. Although [...] are mostly found in the soil. The spotted wing drosophila , Drosophila suzukii , has recently developed into a major pest on soft fruits in Europe and North [...] Biological control of flies Flies are a common pest problem in greenhouse and field crops, where they disturb plant growth, spread diseases and affect

• Pear rust mite

  (Epitrimerus pyri) is a microscopic, elongated, wedge-shaped eriophyid mite that feeds on leaves, shoots, and developing fruit in pear orchards. Unlike [...] Population growth During peak summer, pear rust mites can complete a generation in as little as 1-2 weeks, allowing several generations to develop throughout [...] tic russeting symptoms. Autumn In late summer and early autumn, as foliage quality declines and day length shortens, a new generation of overwintering

• Green peach aphid

  native, however it is now a pest with a world-wide distribution. The green peach aphid ( Myzus persicae subsp. persicae ) is a particularly polyphagous [...] green peach aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. When reproduction is asexual [...] grey-green, pink or red in colour. They appear matt, never glossy. Winged individuals have a brown-black head and thorax and a yellow-green to green or

• Pear blossom weevil

  pupating. New adults emerge in late spring to early summer (May–June), feed on foliage, and then enter a summer diapause in sheltered locations such as [...] punctures on swelling buds in autumn Brown, dried flower buds in spring Areas with reduced blossom development Early monitoring in autumn is essential to assess [...] blossom weevil (Anthonomus piri) is a destructive pest of pear orchards. Adult weevils emerge from summer dormancy in autumn to lay eggs inside developing