• European corn borer

  to brownish and dark spots with a pale centre at the base of the hairs. The head is brown to brownish black. The pupae are up to 2 cm long and light to dark [...] in June. The eggs are laid mainly on the underside of leaves. The larvae initially feed on the leaves and then bore into the upper part of the maize plants [...] just before hatching. The eggs are laid in a mass and overlap like tiles on a roof. The average number of eggs per egg mass is 30. The larvae are up to 25

• Citrus mealybug

  inflict damage on the crop in various ways: Nymphs and females extract the sap from the plant, stunting growth and causing deformation and / or yellowing [...] defoliation. The overall effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars [...] greenhouse horticulture, and in the tropics and sub-tropics on outdoor crops. The insect causes damage especially in fruit trees and ornamental crops, particularly

• Chafers

  long and reddish-brown in colour. The adult beetles fly in the evening, generally in June and July and land on trees to mate. During the night the females [...] General The chafers are beetles of the Scarabaeidae family. The larvae of both species live in the soil and feed on the roots of many plants. They are [...] move to the ground to lay their eggs. Eggs are shiny and white. The eggs hatch after about four weeks and the larvae start to feed on roots. The larvae

• Limonica Ulti-Mite

  multiply in the sachet and disperse into the crop over a period of several weeks. Predatory mites use their piercing mouthparts to extract the contents of [...] in the crop, not exposed to direct sunlight Sachets already have an exit hole Hold sachets by the cardboard strip at the top, to avoid damaging the predatory [...] predatory mites Dosage The dosage of Limonica Ulti-Mite depends on climate, crop and pest density and should always be adjusted to the particular situation

• Southern European marshland pyralid

  Damage symptoms The caterpillars often stay in the lower strata of the crop, sometimes attacking the stem of the plant as well as the leaves. Late instar [...] tile-like fashion on both the upper and lower surface of leaves close to the veins, or low on the stem or stalk close to the ground. The pinkish red eggs are [...] long and have a creamy white colour. Along the dorsal surface of the body there are pairs of dark dots. The dark head is also conspicuous, as are the four

• Box tree moth

  common one is mostly iridescent white with a dark brown band at the outer margin and a characteristic white spot on the forewing, while the other is mostly [...] mainly. Severe defoliation can lead to the death of the tree. As the tree is extensively traded within Europe, the box tree moth ( Cydalima perspectalis [...] Damage symptoms The larvae of the box tree moth ( Cydalima perspectalis ) feed on the leaves of box trees, but can also attack the bark of the trees, causing

• California red scale

  tissue and sucking the contents of the parenchymal cells. If the infestation is more serious, the leaves present some characteristic yellow dots around [...] three a day. The crawlers are mobile and very small, so they are spread easily by the wind and birds, as well as by humans and their tools. In the hours after [...] shape and subsequent development. The females moult into the grey stage, named after the colour of the edges of their shield. Mating occurs at the start

• Blackcurrant aphid

  spinal stripe. The distal third of the siphunculi is slightly swollen. In spring, the blackcurrant aphid lives on the underside of the young leaves of [...] General The blackcurrant aphid, Cryptomyzus galeopsidis , attacks black currant and also red current. It is widespread throughout Europe and also present [...] mould fungi grow. Leaves and fruit quickly turn black and fruit can become unmarketable. Life cycle and appearance of Blackcurrant aphid Aphids have a complex

• House fly

  Salmonella and E. coli ), protozoan parasites (such as Giardia ), and the eggs of many parasitic worm species. Life cycle and appearance of House fly The adult [...] commensal organism to human populations; the housefly is always found in association with human activity. As the most common species of fly found on livestock [...] represent both a nuisance and a risk for disease transmission. High-density housing systems and abundant manure production create the ideal conditions for maggot

• Summer fruit tortrix

  russet colour and the fruits may become unmarketable. Damage to the surface of developing plums may result in considerable weeping and the blemished fruits [...] present in late May and June for the first generation, in July through September for the second generation, and in October for the third. Flight times [...] Larvae feeding on mature fruits, especially on apple and pear, remove the skin and graze shallowly into the fruit flesh to form large irregular patches. These