• Anagyrus vladimiri

  Behaviour of the parasitic wasp Anagyrus vladimiri The female Anagyrus vladimiri lays its eggs inside the body of the mealybug. Upon hatching, the larvae [...] ovipositor between the wax filaments on the lateral margins of the host. Oviposition generally lasts about 15-40 seconds. The larva of the parasitic wasp [...] consumes the contents of the mealybug, going through five instars before pupating within the mummified skin of its host. The adult emerges through an irregular

• Impatiens thrips

  americanus is often found low in the crop. In sweet pepper the damage can be seen as discolouration of older leaves at the bottom of the plant. Life cycle and [...] crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations become serious the leaves themselves can shrivel. Echinothrips americanus [...] exclusively on the leaves and is often present on weeds in greenhouses. Damage symptoms Thrips cause damage to plants by piercing the cells of the surface tissues

• Onion thrips

  patches on leaves and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When [...] and finally the adult insect. The eggs of the onion thrips (Thrips tabaci) are laid in leaves, flower petals and in the soft parts of stalks. They are [...] to plants by piercing the cells of the surface tissues and sucking out their contents, causing the surrounding tissue to die. The resulting silver-grey

• Greenhouse whitefly

  whiteflies reduce the aesthetic value of crops. This is particularly important in ornamentals . Life cycle and appearance of Greenhouse whitefly The greenhouse [...] General The greenhouse whitefly ( Trialeurodes vaporariorum ) is one of the major pests of vegetable and ornamental crops in greenhouses throughout the world [...] and the excess is excreted as honeydew, with larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of sucking

• Privacy Statement

  and the banner will no longer appear as long as the cookie is active. After the end of the cookie’s service life or if you delete the cookie, the banner [...] processing is necessary for the performance of a contract; processing is necessary for a legitimate interest. The legitimate interest is based on the following: [...] any longer than is necessary for the purposes of the processing, in view of the legitimate interest concerned, and in accordance with the statutory retention

• American serpentine leaf miner

  enter the plant tissue via the feeding spots. Life cycle and appearance of American serpentine leaf miner The life cycle of a leaf miner has the following [...] roughly one hour the larva crawls out of the leaf and falls to the ground. This occurs in the early morning. The larva crawls into the ground to pupate [...] intermediate forms of tunnelling between these ‘plate mines’ and normal mines, making it an unreliable criterion for the identification of the species. Indirect

• Tomato leafminer

  harvest. Life cycle and appearance of Tomato leafminer The female moth of the tomato leaf miner ( Tuta absoluta ) lays about 260 eggs. The eggs of the tomato [...] occur underneath the crown of the fruit and even inside the fruit itself. On leaves, the larvae only feed on mesophyll tissues, leaving the epidermis intact [...] mine inside the leaf, stem or fruit. In the second to fourth instars they become greenish with a black band behind the head. The prepupae of the tomato leaf

• Diglyphus isaea

  Adult stage: The appearance of the adult is already clearly visible. Pupae are often visible through the leaf. The parasitic wasp escapes from the mine by making [...] Diglyphus isaea The parasitic wasp Diglyphus isaea is available in a bottle ( Miglyphus ). Release parasitic wasps between the leaves of the crop in the morning [...] particularly the serpentine leafminer ( Liriomyza trifolii ). The female wasp deposits her eggs inside the larvae of the leafminer, where the emerging larvae

• Western flower thrips

  patches on leaves and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When [...] 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 [...] to plants by piercing the cells of the surface tissues and sucking out their contents, causing the surrounding tissue to die. The resulting silver-grey

• Cyclamen mite

  become brown near the base. Life cycle and appearance of Cyclamen mite The life cycle of the cyclamen mite ( Phytonemus pallidus ) has the following stages: [...] usual. In cyclamen, the flowers are damaged and leaf growth is inhibited. In hedera, a mite attack can cause baldness in parts of the stem. Gerbera flowers [...] used for walking. The males are smaller than the females and their hind legs are modified and used to transport pharate females. Eggs of the cyclamen mite