• Silver-Y moth

  d leaves, accumulation of frass and destruction of growing points. Life cycle and appearance of Silver-Y moth The forewings of the silver-Y moth ( Autographa [...] line there is a dark dot on each segment. Dorsally there are alternating light and dark stripes. A characteristic feature of this caterpillar is the oscillatory [...] General The silver-Y moth ( Autographa gamma ) is a migrant moth that appears in northern parts of Europe until November, migrating back to southern Europe

• Green peach aphid

  peach tree, is native, however it is now a pest with a world-wide distribution. The green peach aphid ( Myzus persicae subsp. persicae ) is a particularly [...] families. Damage symptoms Of all the aphids , the peach potato aphid ( Myzus persicae subsp. persicae ) is the most important vector of viral diseases. It can [...] different viruses and is thus rightfully feared by many growers. Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones

• Verticillium wilt

  causes verticillium wilt and early dying of potato. Damage symptoms Verticillium species mostly cause wilting of plants. The wilting starts at the lower [...] The symptoms may occur only in parts of the plant. Cutting the stalk horizontally reveals a slight discolouration of the vessels, brown or greenish, but [...] fungus infects the roots of plants, directly or through wounds caused by for example nematodes. The fungus then grows into the vessels of the plant and produces

• Black vine weevil

  Outdoors there is a single generation each year. A population of black vine weevils consists entirely of females and reproduction is by parthenogenesis [...] damage is caused by the feeding of the larvae on the roots. After the roots have been destroyed the larvae move into corms, rhizomes and stem bases of plants [...] within the stems of the plants. Both adult beetles and larvae are polyphagous and feed on a large number of plant species. High populations of larvae can destroy

• Effective spider mite control with predatory mites

  needs. Phytoseiulus persimilis Phytoseiulus persimilis is a specialist predator of spider mites , it is extremely effective in controlling outbreaks under [...] and human health. Koppert is the pioneer in the development of predatory mite solutions, starting in 1967 with the production of the predatory mite Phytoseiulus [...] programs forms the cornerstone of success, ensuring population suppression, crop vitality, and reduced chemical use. Key benefits of using predatory mites Targeted

• Diamond back moth

  but is now present wherever its cruciferous hosts exist and it is considered to be the most universally distributed lepidopteran species. It is highly [...] young seed pods, causing loss of pods and seeds. Life cycle and appearance of Diamond back moth The oval and flattened eggs of the diamond back moth (Plutella [...] and is green, sometimes suffused with pale yellow, with a few short hairs and small white patches. The larva has five pairs of prolegs; one pair of prolegs

• Tobacco aphid

  East and is a key pest of tobacco crops in both the United States and South America. The tobacco aphid ( Myzus persicae subsp. nicotianae ) is also encountered [...] therefore need to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit [...] nutrients 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

• Tomato moth

  second generation of larvae often causes greater loss of fruit than the first. Life cycle and appearance of Tomato moth The forewings of adult tomato moths [...] oleracea) is a particularly a pest in greenhouses but can also inflict damage on outdoor crops. It is a polyphagous species feeding on plants of 14 families [...] 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

• Goat moth

  Cossus cossus ), is a pest of broad-leafed trees. It is most often found in birch, ash, willow and elm but can also attack fruit trees. It is widespread in [...] smell. Trees eventually die. Life cycle and appearance of Goat moth The wingspan of the adults is 70-100 mm; body and wings are dull greyish brown, partly [...] wood. Attacks are usually confined to the trunk of mature tress. Sap frequently exudes from the bark of attacked trees. The larvae emit an unpleasant goat-like

• Cabbage leafroller

  Life cycle and appearance of Cabbage leafroller An adult female is 12 mm long and is ochre-yellow with darker markings. The male is slightly smaller and slimmer [...] body. The antennae are thin and of medium length. The moths fly when it is dark. The yellow eggs are laid in batches of 10 to 90 pieces and covered with [...] pairs of prolegs. They either make webs in which they hide, or live inside fruit or flowers. It is these webs that cause the leaves to curl. Many of these