• Macrolophus pygmaeus

  voracious predators, capable of feeding on various pest species. With its effectiveness in pest control and minimal impact on non-target organisms, the natural [...] behaviour of Macrolophus pygmaeus Although Macrolophus pygmaeus prefers to feed on whiteflies, it also eats aphids , spider mites , moth eggs and small caterpillars [...] for full development of a population. When females are only able to feed on plant sap, they lay far fewer eggs and the nymphs (if similarly deprived of

• Privacy Statement

  Google on servers in the United States. Google uses the information from Google Analytics to track how our site is used, to compile reports on our website [...] or where such third parties process the information on Google’s behalf. Koppert has no influence on this. Profiling We use specialist external software [...] relationship with you. Cookies We use cookies on our website. A cookie is a small text file that is stored on your computer by your browser when you visit

• Tomato moth

  pest in greenhouses but can also inflict damage on outdoor crops. It is a polyphagous species feeding on plants of 14 families including crop species such [...] to break. Young plants may be stripped completely, and the frass deposited on fruit can reduce their marketability. In fruiting vegetables, large holes [...] 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.

• Woolly apple aphid

  sticky “wool” can be seen, mainly on spurs and branches. Many generations occur during the summer months, also on new growth. Water shoots arising from [...] quince and a few other woody Rosaceae. Damage symptoms Galls are often produced on infested wood. These galls may seriously disfigure young trees and nursery [...] cycle and survival from year to year of the woolly aphid depends entirely on wingless, parthenogenetic and viviparous forms. Sometimes a few wingless

• Bean seed fly

  larvae burrow into the soil and feed on the seeds and roots of young plants. Larvae mainly attack seedlings by feeding on emerged roots and cotyledons. Plants [...] Damage to seeds: Darkened or damaged seeds, as bean seed fly larvae feed on seeds and can cause significant damage. Presence of larvae: Small, white maggots [...] typically has a shiny black or dark brown body with clear wings. The larvae, on the other hand, are small white maggots that can be found near the base of

• Crane flies

  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 and cereal [...] also be visible. Secondary damage may come from birds and rodents feeding on larvae and digging up turf. Life cycle and appearance of Crane flies Adult [...] clearly visible veins. Eggs are black in colour, oval, 1mm long and deposited on the soil surface. Larvae are cylindrical, tapering toward the head, and grey-brown

• Oak processionary moth

  allergenic for months. From the 5th instar on, the larvae start building silken nests at the base of lower branches, on the trunks or at the base of the trunks [...] also in parts of the Middle East. Damage symptoms The nests of caterpillars on infested trees are clearly visible. The larvae of the oak processionary moth [...] the larvae are disturbed. After moulting, the previous stage's hairs remain on the exuvia, but can become airborne and are still allergenic. In dry weather

• Cabbage moth

  symptoms Large caterpillars feed mainly on the youngest leaves, producing skeletonized leaves, holes and frass on leaves. The caterpillars destroy large [...] highly polyphagous defoliator. Besides being a major cabbage pest, it feeds on 70 plants of 22 families, among them crops such as sweet pepper, tomato, [...] emerging from their pupae the female moths lay clusters of 20 to 100 eggs on the underside of leaves or elsewhere within the greenhouse structure. The

• Pea leaf miner

  percentage of the larvae remain hanging on the leaf and pupate there, sometimes on the upper surface but more commonly on the underside. The late third instar [...] damaging to leaf vegetables and causes problems especially in lettuce grown on open ground. Damage symptoms Leaf miners cause damage to plants both directly [...] damaged before the harvest is affected. The size of a leaf tunnel depends on the stage of development of the leaf, the species of host plant and the species

• Horse-chestnut leaf miner

  occurs in April and May, depending on climatic conditions. After mating, each female may lay up to 180 eggs singly on the upper part of the leaflets. Females [...] the mines may cover the entire surface of the leaflets, especially from July on, when the second and third generations develop. Trees with a low number of [...] Females of the second and third generations lay eggs on all leaflet surfaces. Larval development lasts 25-35 days. First-instar larvae make only a small