Cyclamen mite

cyclamen mite ( Phytonemus pallidus ) is a harmful strawberry pest as well as a common pest found in cyclamen, gerbera and other ornamentals . Mites belonging [...] flowers are damaged and leaf growth is inhibited. In hedera, a mite attack can cause baldness in parts of the stem. Gerbera flowers deform and discolour with [...] along the midrib. Even a mild infestation can cause enormous damage, and with heavier infestations plant growth is arrested and the flower buds are so

Aphids

damage to a crop: Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded [...] harmful pests in greenhouse and field crops, causing plant stress, virus transmission and yield loss. Effective aphid control is essential for maintaining [...] length. They have a pear-shaped body with long antennae and two tube-like structures called tubercles on their rear end. Color: Aphids can be a variety of colors

Leaf miners

Leaf miners belong to the order Diptera (the true flies ) and form the family Agromyzidae. This is a family of small flies whose larvae tunnel into the leaves [...] directly and indirectly. The most direct damage is caused by the larvae mining the leaf tissue which can lead to desiccation, premature leaf-fall and cosmetic [...] before the harvest is affected. The size of a leaf tunnel depends on the stage of development of the leaf, the species of host plant and the species of leaf

Southern European marshland pyralid

fovealis) is a polyphagous species feeding on a wide range of hosts from 38 plant families. They include ornamental crop plants, such as roses and gerbera [...] in a cocoon made of webbing, frass and soil particles. The pupa itself is yellow-brown, becoming darker as the adult gets closer to emergence, and measures [...] cultivated in an ebb-and-flow irrigation system. The damage threshold varies considerably according to the crop: in begonia and kalanchoë a relatively small

Black sigatoka disease

veins. Within a few days, the spots become a few centimetres in size and turn brown with light grey centres. These spots enlarge further and the tissue around [...] turns yellow and dies. Lesions merge and the whole leaf turns brown and ultimately dies. In cases of severe infection leaves may die within a few weeks. [...] maturity is hampered. Life cycle and appearance of Black sigatoka disease Black sigatoka ( Mycosphaerella fijiensis ) produces both ascospores and conidia

Beetles

species, Coleoptera is the largest of all insect orders and displays an enormous variety of form, size and habit. A number of species are a serious pest in [...] 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 [...] stage. Larvae have biting mouthparts and mostly feed on the same food as the adults. The pupae do not make a cocoon and will already display many similarities

Cucumber

cultivation history goes back some 3000 years and it is now being produced on most continents. The cucumber plant is a creeping vine that grows up trellises or [...] About The cucumber ( Cucumis sativus ) is a popular, extensively cultivated plant that belongs to the gourd family of Cucurbitaceae . The cucumber originates [...] cucumber plant has large leaves and it produces an elongated, cylindrical fruit that may become as long as 60 cm or 24 inches long and 10 cm or 3.9 inches in diameter

Swirski-Mite Plus

swirskii is most effective at temperatures between 20 and 32°C (68 and 90°F). It is not effective at temperatures below 18°C (64°F). A. swirskii is sensitive [...] ha and hang them evenly spaced in the crop. Release should be repeated after 4 weeks if the pest is not controlled. Consult a Koppert advisor or a recognized [...] thrips species and eggs and larvae of whitefly . Crops Do not use in tomato. Mode of action Predatory mites multiply in the sachet and disperse into the

Flies

fruits in Europe and North America. Sciarid flies and shore flies are mainly a problem in greenhouses. Their larvae live in the ground and prefer moist substrates [...] larvae feeding on root hairs and tender roots as well as stem and leaf tissue and fruits. The lesions caused by feeding larvae provide invasion routes for various [...] 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

Thrips

presence in the crop. At a later stage, the empty cells become desiccated and the adjacent cells turn brown. The vigour of the plant is also reduced by loss [...] With a serious infestation the leaves themselves can shrivel, and there can be varying levels of fruit damage depending on the species of thrips and their [...] Several species of thrips are a major problem in greenhouse horticulture. The Western flower thrips ( Frankliniella occidentalis ) is the most damaging species