Chilli thrips

eggs in the youngest plant tissues. Eggs are oval, whitish to yellow and kidney shaped. Nymphs are tiny, slender, fragile and yellowish straw in colour [...] colour. Adults has heavily fringed wings and grey in colour. Life cycle is short and completed in 15 to 20 days as many as 25 overlapping generations per year [...] commonly known as the chilli thrips, is an emerging pest of significant concern in greenhouse cultivation. Known for its ability to damage a wide variety of

Mealybugs and scales

fruit are concerned, these often drop off; plant sap is low in proteins and rich in sugars. In order to gain an adequate intake of protein, mealybugs must [...] scales also produce honeydew (on which moulds grow) resulting in considerable damage in ornamental and fruit crops and loss of value. Armoured scales do [...] sale, and the reduced level of photosynthesis in the leaves also reduces flower and fruit production; in ornamental crops, the mere presence of mealybugs

Whitefly

retarded. In full sunlight, leaves can wilt and drop. Such leaf damage can in turn influence the development of fruit and lead to a reduction in yield. By [...] are widespread, polyphagous and are broadly comparable in outline. Find solutions for whitefly in your crop Life cycle of whitefly Whitefly damage The larvae [...] whitefly reduces the aesthetic value of crops. This is particularly important in ornamentals. The honeydew deposited on fruit makes it sticky. Dirt adheres

Caterpillars

often live in rolled-up leaves. Although some species are restricted to a single crop, most are polyphagous. Find solutions for caterpillars in your crop [...] caterpillars. Some species mine in leaves or bore holes into fruit or stems, making them difficult to detect and control. In addition to consumption of the [...] greyish. Adult butterflies do not damage crops. Most of them feed on nectar. In contrast, the caterpillars have biting and chewing mouthparts and can devour

Tobacco whitefly

insect was first identified on tobacco in Greece in 1889, hence the name tabaci . It has subsequently been found in most tropical and subtropical countries [...] retarded. In full sunlight, leaves can wilt and fall. Such leaf damage can in turn influence the development of fruit and lead to a reduction in yield. The [...] particularly important in ornamentals . The larvae inject enzymes into the plant that alter their normal physiological processes. In some host plants, this

Green peach aphid

occurs early enough in the season, the death of young plants. Retarded growth and defoliation reduce yield, Plant sap is rich in sugars, but has a low [...] peach aphid ( Myzus persicae subsp. persicae ) is an important insect pest in sweet pepper, tomato, cucumber and many other greenhouse crops. The aphid [...] quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky. Black fungal moulds

Spotted Wing Drosophila

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 [...] unripe fruits. The larval development takes place in the fruit. The larvae pupate either fully or partly in the fruit, or outside the fruit on the ground. [...] and Europe where it has caused severe yield losses in many berry crops, cherries and grapes. Damage symptoms After oviposition, the respiration tubes extend

Diamond back moth

often stick to leaves and frequently hide in crevices near the bud. In cauliflower and broccoli, pupation may occur in the florets. Initially, the pupa is [...] They are deposited singly or in small groups of two or ten eggs on both the upper and lower surface of leaves, preferentially in depressions, and rarely on [...] The diamond back moth (Plutella xylostella) is suggested to have its origin in Europe, South Africa or East Asia, but is now present wherever its cruciferous

Leaf miners

cosmetic damage. In (sub)tropical areas this can lead to burning in fruit such as tomato and melon. Loss of leaves also reduces yield. In full-grown plants [...] species in this family, only eleven are truly polyphagous. The species that cause most damage all belong to the genus Liriomyza and are very common in temperate [...] creating ‘mines’. There are many species of leaf miner affecting various crops in temperate parts of the world. Under natural conditions, the larvae of these

Cotton aphid

occurs early enough in the season, the death of young plants. Retarded growth and defoliation reduce yield. Plant sap is rich in sugars, but has a low [...] cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses reproduction takes place by parthenogenesis, with unfertilized [...] d throughout the world but prefers the warmer regions. It has been a pest in European greenhouses since the late 1980’s, particularly affecting cucumber