• Common cockchafer

  the common cockchafer ( Melolontha melolontha ) has the following stages: egg, three larval instars, a pupal instar and the adult beetle. The adult beetle [...] typical triangular white spots below the elytra. When just laid, the oval eggs of the common cockchafer ( Melolontha melolontha ) are 2 x 3 mm, but they

• Hemp russet mite

  life stages: egg, two nymphal stages and adult. The nymphal stages are sometimes also called larva (1st stage) and nymph (2nd stage). The eggs are approximately

• Diglyphus isaea

  instars (egg, larva, pupa and adult) develop outside the host. Egg stage: A female wasp first paralyzes the leaf miner larva and then lays a single egg (oc [...] serpentine leafminer ( Liriomyza trifolii ). The female wasp deposits her eggs inside the larvae of the leafminer, where the emerging larvae feed on the [...] general, the wasp selects late second and third instar larvae to parasitize. An egg has an elongated shape, measuring 0.3 x 0.1 mm, and is transparent white in

• Pear psylla

  on the back of the thorax. Their forewings are clear with dark veins. The eggs are oval, approximately 0.3 mm long and yellowish orange in colour. The nymphs [...] adults become active in spring and start to feed on young leaves and flowers. Eggs are deposited in crevices of the bark of twigs and hatch after about 3 weeks

• Shore fly

  Scatella tenuicosta ) has the following stages: egg, three larval instars, a pupa and the adult fly. The eggs are laid singly and are bean-shaped. A first

• Thrips

  develop through six stages: the egg, two larval instars, a pre-pupa and a pupal instar, and finally the adult insect. The eggs are kidney-shaped and have a [...] white or yellow shell. Before a female deposits an egg, she makes an opening in the plant tissue. The eggs are laid in leaves, flower petals and in the soft [...] sweet pepper, for instance, these egg-laying sites are recognizable as wart-like growths, whereas on most other crops the egg deposition sites cannot be seen

• Protected vegetables

  Predatory mites prey on spider mites and other mites , thrips , whitefly and eggs of moths. Beneficial nematodes control soil-dwelling pests like beetle larvae

• Buckthorn-potato aphid

  relatively short and barely exceed half the body length. The aphids overwinter as eggs on buckthorn. After emerging in spring, the aphids mainly feed on the underside [...] females are produced, which return to the primary host buckthorn where they lay eggs for overwintering.

• Crane flies

  spindly legs and one pair of narrow, clear wings with clearly visible veins. Eggs are black in colour, oval, 1mm long and deposited on the soil surface. Larvae [...] 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

• Chrysoperla carnea

  observing its distinct physical characteristics at each stage: Egg stage: Green lacewing eggs are small, oval-shaped, and usually laid individually or in [...] larvae can resort to cannibalism, with the older larvae eating the younger. Eggs are often ignored because they stand on stalks. Adults make no contribution [...] long and 4 mm thick. The inner more closely spun cocoon is off-white and egg-shaped, about 3 mm long and 2.5 mm thick. The space between the inner and