• Lesser Mealworm

  its life in cracks and crevices, manure, litter, and under feed and water lines. The eggs are oblong, about 1.5 mm (0.06 inches) in length and creamy white [...] congregate in large numbers around feed and water stations and breed prolifically, with the following consequences: The birds eat them and can develop [...] feed on spilled feed and chicken waste and are eaten by the chickens in turn, posing a risk for disease transmission, especially Salmonella . These insects

• Codling moth

  with ash-grey and a large, metallic, bronzy black ocellus on the hind part. The hindwings are brown. The eggs are about 1.3 x 1.0 mm, and whitish opalescent [...] year. The fully grown caterpillars of the last generation overwinter and pupate in spring. Larvae still in the apples at harvest can often be found in cracks [...] common in Europe. Damage symptoms After invading the fruit, the larvae first form a small cavity just under the skin. The entry hole can be seen and is usually

• Japanese beetle

  abundant in well-kept lawns and golf courses, and less often in pastures. The grub feeds just below the surface, it cuts off and consumes the grass roots [...] turn brown and drop. The adults are gregarious, usually beginning to feed on foliage at the top of a plant and working downwards. The larvae are most abundant [...] overwinter in an earthen cell about 15-20 cm deep in the soil. In early spring, when the soil temperatures increase, the grubs move closer to the surface

• Aphidius colemani

  typical of the Aphidiidae. First the host is examined by drumming with the antennae. This gives the wasp the information about whether the aphid is the right [...] Aphidius colemani The parasitic wasp is available in a bottle ( Aphipar ). Spread the material on rock wool slabs or in Diboxes Make sure the material remains [...] behaviour, which enables the wasps to track down and parasitize aphids , even when they are at low density. The behaviour of the female during egg-laying

• Buckthorn-potato aphid

  presence in the crop. Wingless females of the buckthorn- potato aphid are 1.1-2.4 mm long and bright pale green to yellowish green. The antenna are relatively [...] lower parts of the plants and are not very mobile. In autumn, winged males and females are produced, which return to the primary host buckthorn where they lay [...] 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

• Rose aphid

  presence in the crop. Wingless females of the rose aphid are 1.7-3.6 mm long and green or deep pink to red-brown. The antennae and sometimes the head is [...] 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 [...] Infestations with rose aphids retard the growth of buds and new shoots. Foliage and flowers are often disfigured and contaminated with sticky honeydew on

• Impatiens thrips

  to adult on the plant, specifically on the leaves. Eggs are deposited in the leaf tissue, while subsequent stages are found on the upper- and undersides [...] of the leaf. Pupation occurs on the leaf rather than on the ground. The prepupae and pupae remain immobile on the leaf tissue. Adults are found on both [...] orange pigmentation between the segments, and the dark wings are white at the base. This colouration distinguishes the species from most other thrips species

• Northern Corn Rootworm

  feed on the foliage, pollen, silks and developing kernels of corn, with the following consequences: When corn silks are cut all the way back to the ear and [...] eggs in the soil at the base of corn plants in late summer/early fall and each can lay up to 300 eggs. Northern corn rootworm eggs remain dormant in the [...] predominate in fields where corn is replanted every year. The rootworms undergo three larval instars then pupate in the soil near the corn roots in late June

• Shore fly

  Shore fly The life cycle of the shore fly ( Scatella tenuicosta ) has the following stages: egg, three larval instars, a pupa and the adult fly. The eggs are [...] cylindrical. The larvae are found in the top layer of damp soil, where they also pupate. The adult shore fly is black, about 4 to 5 mm long, and stout with [...] are laid singly and are bean-shaped. A first instar larva is translucent white. Second instar larvae are brownish, less translucent and their body is

• Grey mould

  cinerea ) is part of the foot rot complex, which causes rotting of the foot and may cause death of the plants. In cucumber and tomato the fungus causes lesions [...] wounds. These lesions may encircle the stem, so the part of the plant above the lesion wilts and dies. In vegetables and strawberry, grey mould ( Botryotinia [...] fungus in many environments. It survives in plant parts like bulbs and crop residues or as sclerotia (drought- and cold-resistant structures) in the soil