Crane flies

again and feed voraciously when the soil begins to warm up in spring. The larvae pupate below the soil surface in summer. The pupal stage lasts about two weeks [...] General The larvae of crane flies , called leatherjackets, live in the soil and feed on roots and shoots (which they pull into the ground of mainly grasses [...] adults emerge, part of the pupal case can be found sticking out above the soil surface. Adult common crane flies emerge from the soil in late summer to

Potato aphid

from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation [...] quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky. Black fungal moulds [...] characteristic of the potato aphid and is particularly visible in the nymphs. Immatures have a light dusting of whitish-grey wax. The aphids instantly fall

Spidex Vital Plus

multiply in the sachet and disperse into the crop over a period of several weeks. They pierce the prey with their sucking mouthparts and suck out the contents [...] 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 Spidex Vital Plus depends on climate, crop and pest density and should always be adjusted to the particular situation

Hemispherical scale

surface distinguish the species from most other soft scales. The size depends on the host plant and can vary from 2 to 4.5 mm. The young nymphs are white [...] form and with a raised H-pattern on the dorsal surface. All instars live on the underside of leaves, often close to the midrib. Only when an infestation is [...] General The hemispherical or helmet scale, Saissetia coffeae , occurs widely in tropical regions and in greenhouses throughout the world. It is a severe

False spider mites

found on the underside of leaves where they cause a brown, scabby discolouration spreading from both sides of the main vein into the leaf blade. The damage [...] of the plant. In some crops, plants can become misshapen, presumably because the mites secrete a substance while feeding, that is poisonous to the plant [...] have the same body shape as spider mites but are usually smaller. The different species all look very similar. False spider mites pass through the same

Spider mites and other mites

n of the leaves, with the affected areas curling and twisting. This damage is caused by the mites feeding on the plant tissue, which disrupts the growth [...] and the availability of food. Here's an overview of the life cycle of plant mites: Egg: The life cycle begins with the female mite laying eggs. The eggs [...] During this stage, the larvae start to feed on plant sap and undergo molting to transition to the next stage. Nymph: After the first molt, the mite larvae become

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Moskisan

yellow bucket Fix the transparent top to the funnel with a twist action lining up the slots Attach the hanging hook to the transparent top Application Place [...] cific lure which attracts the male fruit flies into the trap. Once in the trap they cannot escape and are easy to detect, count and identify. Trapping [...] reducing the number of eggs laid by famles as they fail to mate. Presentation One trap with hanging hook. Preparation Place the Pherodis lure in the yellow

Mottled arum aphid

sexual stage in the life cycle. Wingless females of the mottled arum aphid are shiny whitish, yellowish or green with black cross bands behind the head, broken [...] broken along the midline, and a large horseshoe-shaped spot on the back of the abdomen. These black markings can be highly variable. Adult females are 1.2-2 [...] greatly reduce plant vigour and kill the plant through sucking of plant sap. However, also at lower densities the aphids can damage plants because they

Large raspberry aphid

to reduce yield by direct feeding damage. The major problem is the spreading of various raspberry viruses by the aphids. Life cycle and appearance of Large [...] antennae, legs and siphunculi. The cauda is short and triangular. Overwintering eggs of the large raspberry aphid are laid near the base of vegetative canes [...] in spring, the aphids mainly feed on the underside of leaves and start to reproduce parthenogenetically. They are very mobile and drop from the plant when