Onion thrips

General The onion thrips (Thrips tabaci) is distributed throughout the world. It is found outdoors on many plants and particularly damaging on onions, [...] the plant is reduced by loss of chlorophyll. When infestations become serious the leaves themselves can shrivel. Onion thrips (Thrips tabaci) is found mostly [...] veins join. Fruit damage, for instance in cucumber, only occurs if the crop is heavily infested. In some countries, the onion thrips (Thrips tabaci) has

Impatiens thrips

the plant is reduced by loss of chlorophyll. When infestations become serious the leaves themselves can shrivel. Echinothrips americanus is often found [...] General Impatiens thrips (Echinothrips americanus) is an increasing problem in greenhouse cultivation, having spread to many countries within the last [...] sweet pepper, cucumber and eggplants. It lives exclusively on the leaves and is often present on weeds in greenhouses. Life cycle and appearance of Impatiens

Cabbage moth

General The cabbage moth (Mamestra brassicae) is a highly polyphagous defoliator. Besides being a major cabbage pest, it feeds on 70 plants of 22 families [...] lettuce, beetroot, onion, rhubarb as well as chrysanthemum and carnation. It is a species found in Europe, North Africa (Libya, Canary Islands), Japan and [...] the middle. Head and thorax are grey-brown with white spots, and the abdomen is a pale, greyish brown. The moth flies only at dawn and dusk, hiding in the

Cyclamen mite

General The cyclamen mite ( Phytonemus pallidus ) is a harmful strawberry pest as well as a common pest found in cyclamen, gerbera and other ornamentals [...] the flower buds, growing tips and young folded leaves, where the humidity is highest and they are protected from direct sunlight. In such spots, they are [...] and smaller than usual. In cyclamen, the flowers are damaged and leaf growth is inhibited. In hedera, a mite attack can cause baldness in parts of the stem

Western flower thrips

General The western flower thrips (Frankliniella occidentalis) is currently the most damaging thrips species in many greenhouse crops. The western flower [...] many vegetable and ornamental crops in greenhouses, and on various weeds. It is an especially significant pest in cucumber, sweet pepper, eggplants, and many [...] their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations become serious the leaves

Tomato leaf miner

including North Africa, Europe and northern Asia. In warmer regions, the insect is found outdoors but in temperate regions it only occurs in greenhouses. The [...] cause damage to plants both directly and indirectly. The most direct damage is caused by the larvae mining the leaf tissue, leading to desiccation, premature [...] however, a considerable quantity of foliage can get damaged before the harvest is affected. The older larvae make wider tunnels. Feeding spots made by adult

Broad mite

s latus ) resembles the adult, but is slightly smaller and has only three pairs of legs. The emerging adult mite is roughly 0.2 mm long, oval and broad [...] tips, young leaves and flower buds. The mechanism causing the deformation is not yet fully understood, possibly the mites, whilst sucking out the contents [...] of plant cells, secrete substances that disturb local growth. Leaf feeding is mainly concentrated on the underside near the leaf stalk, which tends to cause

Spotted Wing Drosophila

spot on each wing, where their common name is derived from. Females have a strong saw-like ovipositor that is used to penetrate the skin of the host fruit [...] the start of its invasion in 2008/2009, the spotted wing drosophila, which is originally from Asia, has spread extensively in North and South America and

Effective control with Chrysopa-E!

Echinothrips, so this is a natural enemy with a big menu in that respect. Chrysopa-E is suitable for a wide range of crops and Koppert has conducted tests [...] and echinothrips, so this is a natural enemy with a big menu in that respect.Due to the attractive price of Chrysopa-E, it is possible to use many more [...] expense. It is possible for you to use many more beneficials and thus gain better control of pests, with a better return on investment. Chrysopa-E is also suitable

Treatment of bumblebee stings and allergies

stinger, as is the case with honeybees and wasps. Drones cannot sting. The stinger is a weapon for defence. When a bee stings, some venom is injected into [...] Immunol 2006; 6: 294-7. A printed poster showing the images is available from Koppert. This poster is also available as a download (URL). Tip: Add the contact [...] in hospital is desirable, as the reaction may increase progressively over time. Toxic reactions Toxic reactions only occur when the victim is stung dozens