Brown soft scale

spots. The colour of the scale darkens as the female ages. The size, shape and characteristics of the female also vary with different host plants. The middle [...] oleander, palms, ferns and orchids. Life cycle and appearance of Brown soft scale The scale of the female is flat, usually an elongated oval shape, 3-4 mm long [...] but in fact the first instar nymph emerges from the egg under the mother’s scale. The pink crawlers are active for two or three days and disperse locally

Tobacco aphid

also capable of dispersing through the crop by walking. The tobacco aphid tends to form denser colonies, closer to the top of the plant, than the peach potato [...] on the abdomen and several transverse black bands across the body. The antennae are 0.7-1.0 times the body length, reaching to the siphunculi. The body [...] 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

Spotted Wing Drosophila

tubes which stick out of the fruit. There are three larval instars and in the third instar the larvae are about 3.9 mm long. The pupae of Drosophila suzukii [...] unripe fruits. The larval development takes place in the fruit. The larvae pupate either fully or partly in the fruit, or outside the fruit on the ground. [...] fruits have not collapsed, the occurrence of larvae within the fruit makes them unmarketable. The punctures made by the oviposition by D. suzukii exposes fruits

Olive scale

Removal of large quantities of sap debilitate the plant and can cause wilting, desiccation of tissues and dieback. Life cycle and appearance of Olive scale [...] Eggs are protected under the shield until they hatch. The emerging crawlers settle mostly along the main veins on the lower sides of mature leaves. Many young [...] amounts of honeydew causing build-up of sticky deposits on nearby surfaces. The honeydew may attract attendant ants and sooty moulds grow on the sugary deposits

Tomato moth

along the posterior edge of the forewing. As in most noctuid moths, the hindwing is greyish and lighter than the forewing, with a darker shadow at the margin [...] margin. The antennae are long and thin. Head and thorax are reddish-brown while the abdomen is a lighter grey-brown. The females of the tomato moth (Lacanobia [...] oleracea) deposit their spherical eggs on the underside of leaves in groups of 50 to 300, often arranged in layers. The eggs are greenish at first, but gradually

Large raspberry aphid

Overwintering eggs of the large raspberry aphid are laid near the base of vegetative canes and hatch in spring. After emerging in spring, the aphids mainly [...] to reduce yield by direct feeding damage. The major problem is the spreading of various raspberry viruses by the aphids. Solution Finder Find solutions for [...] Wingless females of the large raspberry aphid are 2.6-4.1 mm long, pale to yellowish green with long antennae, legs and siphunculi. The cauda is short and

Western flower thrips

finally the adult insect. The eggs of the western flower thrips (Frankliniella occidentalis) are laid in leaves, flower petals and in the soft parts of stalks [...] disturbed. In the adults both pairs of wings are fully developed. Damage symptoms Thrips cause damage to plants by piercing the cells of the surface tissues [...] causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black dots of their excreta indicate their presence in the crop

Macrolophus pygmaeus

stripe runs behind the eyes. The first part of the forewings is a transparent, soft green with a small black spot in the middle. The hind part is colourless [...] as well as the larvae of leaf miners . When the bug is present in a crop in large numbers, it can contribute substantially to the control of these pests [...] clearly visible on the sides of the head. The bug has piercing-sucking mouthparts. Females have a large, rounded abdomen within which the ovipositor is visible

Crane flies

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 [...] After 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 [...] week and then feed on roots and crowns of grasses during the autumn.. Larvae overwinter in the soil, usually in the third instar stage. and start feeding

Pear psylla

Feeding later in the season may affect the harvest of the next year by weakening or killing fruit buds. Pear psyllas excrete large amounts of honeydew. Sooty [...] appearance of Pear psylla Adults pear psyllas are 2-3 mm long and orange red to blackish. They have white, longitudinal stripes on the back of the thorax. [...] stripes and blackish markings on the head and body. Pear psyllas overwinter as adults, sheltering on the bark of pear trees. The adults become active in spring