Obscure mealybug

less active. From the second instar onwards the life cycle of males anf females is completely different. After the second instar, the males form a dark [...] layer of wax, the filaments around the body are longer (20-50% of the body size) and the two tail filaments are always markedly longer than the others [...] The obscure mealy bug ( Pseudococcus viburni ) is sometimes encountered on tomato, primarily at the foot of the stalk. In an overhead wire system of

Encarsia formosa

reduce the reliance on chemical pesticides. Life cycle and appearance of Encarsia formosa The development of E. formosa consists of six stages: the egg, [...] in colour. The pupa of E. formosa is unique among the species of Encarsia , in that it is formed immediately beneath and in contact with the whitefly pupal [...] then consumed from the inside out by the developing larvae. The larvae feed on the internal tissues of the host, leading to its death and thereby contributing

Tobacco whitefly

peppers, yellowing of the flower stalks in gerbera, and serious yellowing of the leaves of French beans. Other symptoms include the appearance of chlorotic patches [...] although strictly spoken this is not true) and adult. The larvae are found on the underside of young leaves and have an oval shape. The first instar larvae (crawlers) [...] which the red eyes and white wings of the adult are already clearly visible. These pupae are found on the oldest leaves. The adult emerges from the pupa

May beetle

ending in the death of the plant. From the third stage onwards, the impact of this pest increases. Damage symptoms Initial damage is not visible in the aerial [...] differentiate between species, an examination of the position of the setae in their final abdominal segment is needed, although this is not a method which works [...] damage to crops, the most representative genus is the Phyllophaga . Given the external physical similarities between the adults and larvae of this genus, they

Experience Centre

5:00 PM. A tour takes an average of 1,5 hours and is suitable for groups of up to 15 visitors. In the case of bigger groups, the programme can be adapted [...] pollination , come and visit the Koppert Experience Centre where you can take an interactive journey through the fascinating world of sustainable cultivation [...] and see these tireless workers do what they do best. Did you know that the vision of bumblebees differs vastly to that of humans and that we use that difference

Cottony cushion scale

period of 2 to 3 months. After leaving the egg sac, the crawlers settle along the midribs and veins of the leaves. The next two instars migrate to the larger [...] running lengthwise over the surface. The ovisac may reach the same length as the body, giving an overall combined length of up to 20 mm. The 'females' are actually [...] control. The cottony cushion scale has subsequently spread widely through most of the tropical and subtropical countries of the world. It is also periodically

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

Tomato looper

three pairs of prolegs, instead of the normal five and therefore the caterpillar moves with the same looping motion as an inchworm (geometrid). The cocoon is [...] their marketability. Life cycle and appearance of Tomato looper The tomato looper or golden twin-spot moth ( Chrysodeixis chalcites ) is predominantly brown-gold [...] white marks on the forewing that sometimes overlap each other. The hindwings are brown. The body is brown and hairy and, when at rest, the hairy dorsal plume

Box tree moth

Damage symptoms The larvae of the box tree moth ( Cydalima perspectalis ) feed on the leaves of box trees, but can also attack the bark of the trees, causing [...] mainly. Severe defoliation can lead to the death of the tree. As the tree is extensively traded within Europe, the box tree moth ( Cydalima perspectalis [...] capsules of different sizes. Life cycle and appearance of Box tree moth The female box tree moth ( Cydalima perspectalis ) deposits clusters of 5 to 20

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