Long-tailed mealybug

yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order to gain an adequate intake of protein, mealybugs must [...] instars which are at first kept beneath the body in a network of fine waxy threads. Over two or three weeks, a female produces 100-200 nymphs. In the summer [...] getting rid of the excess sugars in the form of honeydew. Characteristically, dark sooty moulds ( Cladosporium spp .) are often found growing on this honeydew

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 [...] almost circular so called pupa, in which the red eyes and white wings of the adult are already clearly visible. These pupae are found on the oldest leaves. [...] 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

Pepper weevil

is made up of more than 40,000 species. They have very hard bodies and are small in size. They prefer crops from the Solanaceae family, especially the Capsicum [...] When they are already present on the crop, the best approach is to monitor them during the cooler parts of the day, as this is when they are most active [...] to the ground or contain holes where eggs are laid or adults were hatched. Meanwhile, the larvae develop in flower buds and young fruit, causing the stalk

Green potted plants

About There are many species of green potted plants, the most common are: Ficus Skimmia come in many varieties and are usually used as garden plants, because [...] red fruits. These plants grow in the shade and need a moist, well-drained, humus-rich soils. Skimmia plants are strong and are tolerant of drought, but also [...] plants or at times as water storage plants, are plants with thick and fleshy parts that serve to retain water in arid climates or dry soils.

Potato aphid

more than 20 families. Various vegetable and ornamental crops grown in greenhouses are colonized, including tomato, aubergine and roses. Damage symptoms [...] 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 [...] wingless forms of adults and a great variety in colour. When reproduction is asexual, the young aphids are born as developed nymphs. They immediately start

Tomato looper

thin. The eggs are white to pale green, shiny, dome-shaped with 28 to 32 vertical ribs. They are deposited singly or in pairs throughout the crop, on the [...] hindwings are brown. The body is brown and hairy and, when at rest, the hairy dorsal plume is characteristically distinct. The antennae are long and thin [...] covered with a few stiff hairs. In older caterpillars , each segment has a clear black dot above the lateral yellow lines. There are three pairs of prolegs, instead

Circular scale

has been dispersed widely in tropical and subtropical parts of the world, mostly in association with the citrus industry. In more northern countries of [...] of its range, it occurs in greenhouses. In addition to citrus, it occurs on many other plants. Damage symptoms Chrysomphalus aonidum has a preference for [...] humid environments. In citrus, it tends to prefer the lower and central parts of mature trees. Circular scale prefers the leaves, but in high infestations

Bean seed fly

measuring about 4-5 mm in length. It typically has a shiny black or dark brown body with clear wings. The larvae, on the other hand, are small white maggots [...] ( Capirel ), are microscopic organisms that parasitize and kill the larvae of the bean seed fly. To implement this method, nematodes are applied to the [...] seedlings by feeding on emerged roots and cotyledons. Plants that survive are weak and less tolerant to subsequent attacks by other pests and plant pathogens

Boisduval scale

three species of Diaspi s are very similar in their appearance and damage symptoms. Here, the Boisduval scale is described in more detail, as it is the [...] Boisduval scale, Diaspis boisduvalii , occurs throughout the tropics, and in greenhouses in more temperate climates. It is very polyphagous and can be a pest of [...] Boisduval scales are normally found on the leaves and stems. Toxic saliva injected while feeding causes necrosis of tissue at the feeding site. In orchids, this

Black bean 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 [...] presence in the crop. The black bean aphid is dark olive green to black with black bands across the back. The two cornicles (or siphunculi) are short and