Vine mealybug

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 [...] present only in the male. After a complete metamorphosis, a winged male emerges from the pupa. The male is smaller (1 mm), dark orange in color with long [...] has no mouthparts. The female is larger (3 mm) and voluminous, has an elongated oval shape and has no wings. The body is covered with a fine waxy material

Green peach aphid

peach tree, is native, however it is now a pest with a world-wide distribution. The green peach aphid ( Myzus persicae subsp. persicae ) is a particularly [...] General The green peach aphid ( Myzus persicae subsp. persicae ) is an important insect pest in sweet pepper, tomato, cucumber and many other greenhouse crops [...] persicae subsp. persicae ) is the most important vector of viral diseases. It can transmit at least 100 different viruses and is thus rightfully feared by

Goat moth

cossus ), is a pest of broad-leafed trees. It is most often found in birch, ash, willow and elm but can also attack fruit trees. It is widespread in Europe [...] The pupa is 5-6 cm long, dark brown, with spines on the abdominal segment. The moths fly at night in June or July and lay eggs on tree trunks in batches [...] symptoms Feeding galleries are very extensive and the larvae burrow in all directions in both sap and hart wood. Attacks are usually confined to the trunk

Glasshouse potato aphid

to deformations in the growing tip of the plant. Precisely where the plant is pierced is unimportant. The piercing of the lower leaves in the crop can cause [...] presence in the crop. The wingless adult stage of the greenhouse potato aphid is rather squat, of medium size (1.8 - 3.0 mm long) and oval in shape. It [...] that has pale to dark transverse bands. The body shape is similar to wingless females, but is 2.0-3.0 mm long. The glasshouse potato aphid manifests both

Carnation tortrix

major pests in carnation cultures throughout the Mediterranean region, particularly in Israel, Italy, France and Spain. In greenhouses, it is most notable [...] swollen appearance. In some cases, it may not be apparent that flowers are infested. The species is particularly troublesome in the culture of carnations [...] moth is rather small. The contrasting colours between the yellow to purple forewings (with a dark brown band in the females and two red bands in the males)

Silver-Y moth

the caterpillar is full-grown, it will form a greenish to black pupa, either in leaves which are woven together with silk threads, or in a suitable hiding [...] General The silver-Y moth ( Autographa gamma ) is a migrant moth that appears in northern parts of Europe until November, migrating back to southern Europe [...] moths can fly 2,000 to 2,500 km. In temperate climates, the species produces one to two overlapping generations, and it is the second generation that inflicts

Black vine weevil

sulcatus, is a pest in many ornamental crops (e.g. rhododendron, cyclamen and azalea), as well as in strawberries and other fruit crops in both temperate [...] approximately 12 mm. A larva is often curled into the typical C-shape which it assumes whenever it is disturbed. The body is covered with stiff white to [...] bites out of the leaves, starting from the edge. This damage is usually not a problem in vegetables and fruit crops but reduces the value of ornamental

Long-tailed mealybug

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 [...] The length of the other filaments is roughly half the width of the body. The female is 3 - 4 mm long. Reproduction in Pseudococcus longispinus , may be [...] level of photosynthesis in the leaves also reduces flower and fruit production. In ornamental crops, the mere presence of mealybugs is sufficient to render

Verticillium wilt

are pale-green, then orange-yellow. In the beginning the plant seems to recover at night. The symptoms may occur only in parts of the plant. Cutting the stalk [...] system usually stays mostly intact. In rose, branches die off from the top and purple brown stripes occur on the stem. In tomato, sometimes V-shaped lesions [...] the plant produces gum in the vessels. The presence of both the fungus and the gum causes the xylem vessels to get blocked, which in turn causes the plant

Tomato moth

tomato moth (Lacanobia oleracea) is a particularly a pest in greenhouses but can also inflict damage on outdoor crops. It is a polyphagous species feeding [...] the body is a glossy green. Later, a conspicuous yellow longitudinal stripe with black dots above is visible on either side. The yellow stripe is bordered [...] deposited on fruit can reduce their marketability. In fruiting vegetables, large holes can be formed in both green and ripening fruit. The second generation