• May beetle

  to crops, since they feed on plant roots, resulting in visible water stress and ultimately ending in the death of the plant. From the third stage onwards [...] damage is not visible in the aerial parts of the plant, as the larvae only feed on root hairs and organic material during the first and second instars. When [...] wilting and stunted growth. Lifecycle and appearance of the may beetle The adults belonging to the majority of Phyllophaga species are very similar in terms

• Yellow rose aphid

  generation of females) and generally found only on cultivated roses and strawberries, in glasshouses in northern Europe or outdoors in warmer climates. Wingless [...] distributed in Europe, North Africa, parts of Asia and South America. It attacks plants of the family Rosaceae and is a pest of strawberries and roses. Damage [...] cycle and appearance of Yellow rose aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour

• Crane flies

  emerge from the soil in late summer to fall, and females mate and lay 200-300 eggs. Larvae emerge within one week and then feed on roots and crowns of grasses [...] Larvae overwinter in the soil, usually in the third instar stage. and start feeding again in spring. They become active again and feed voraciously when [...] called leatherjackets, live in the soil and feed on roots and shoots (which they pull into the ground of mainly grasses and cereal crops. The adults do

• Northern Corn Rootworm

  They appear in late July and remain in corn fields until first frost. Females lay their tiny, white eggs in the soil at the base of corn plants in late su [...] of their corn host) and hatch after corn has been replanted. Univoltine and semivoltine rootworms can interbreed, and they coexist in population patches [...] devastating pest of cultivated corn in North America, with losses and management expenditures totaling over 1 billion dollars. In Eastern Canada, the northern

• Rose aphid

  cycle and appearance of Rose aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses [...] is dark in colour. The siphunculi are black and bent outwards. The rose aphid usually overwinters on rose bushes in the egg stage, although in mild winter [...] Macrosiphum rosae , is a serious and often abundant pest of roses. It is virtually cosmopolitan and widely spread in Europe. Damage symptoms Infestations

• Western flower thrips

  vegetable and ornamental crops in greenhouses, and on various weeds. It is an especially significant pest in cucumber, sweet pepper, eggplants, and many ornamental [...] ) usually pupate in the ground, although pupae can also be found on leaves, in flowers or in other sheltered places. The prepupal and pupal instars can [...] wing buds and longer antennae that are curved back over the head. The prepupal and pupal instars do not feed and only move if disturbed. In the adults

• Japanese beetle

  to rapidly build up and spread steadily in the US. In Europe, Popillia japonica was for the first time reported in northern Italy in 2014 where official [...] at the top of a plant and working downwards. The larvae are most abundant in well-kept lawns and golf courses, and less often in pastures. The grub feeds [...] weeks, and the young larvae begin feeding on fine roots and organic matter. They moult and become second-instars after 2-3 weeks, and third-instars after

• Southern European marshland pyralid

  prolegs. Caterpillars are found in webs, preferably in damp, humid places and are thus mainly found low in the crop, often in decaying organic material on [...] crops cultivated in an ebb-and-flow irrigation system. The damage threshold varies considerably according to the crop: in begonia and kalanchoë a relatively [...] concealed either within the crop or in another suitable spot in the vicinity. Pupation occurs in a cocoon made of webbing, frass and soil particles. The pupa itself

• Cabbage leafroller

  cyclamen, and kalanchoë, but particularly gerbera. In chrysanthemum too, this species is an increasing problem, and it has caused problems in sweet pepper [...] older caterpillars eat a hole in the shoot and hollow it out, causing the shoot or growing point to wilt and die. Life cycle and appearance of Cabbage leafroller [...] female is 12 mm long and is ochre-yellow with darker markings. The male is slightly smaller and slimmer, more clearly marked and lighter in colour. Both have

• European corn borer

  pest of maize and has also been reported to attack apple, strawberries, peppers and other plants. It is present in Europe, North Africa and North America [...] larvae tunnel into stem internodes and produce extensive galleries. The larvae pupate in situ in the galleries or in the soil. Fully grown larvae overwinter [...] are smaller and produce fewer kernels per ear. Life cycle and appearance of European corn borer The adults have a wingspan of 22-32 mm and pale yellowish