Apple blossom cutter
| Apple blossom cutter | ||||||||||||
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Apple blossom cutter ( Anthonomus pomorum ) |
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| Scientific name | ||||||||||||
| Anthonomus pomorum | ||||||||||||
| ( Linnaeus , 1758) |
The apple blossom stick ( Anthonomus pomorum ) is a beetle from the family of the weevils (Curculionidae).
features
The beetles are 3.4 to 4.3 millimeters long and have a brown or black-brown basic color. They have variable, rough, white and brown colored scales. The pronotum has light central and weakly recognizable collateral ligaments. The label is covered with white scales. The upper wings have a dark and light V-shaped drawing on the rear part. Their legs are dark brown in color and lightly haired. Between the thigh (femur) and splint (tibia) and also on the tarsi they are a little lighter in color. The splints are widened in the apical half. The front legs have a strong tooth, the middle and rear legs each have a finer tooth. The antennae are red-brown, at the end they have a darker colored club.
Occurrence
The animals occur in the Palearctic north to the south of Finland and the middle of Norway and Sweden . They were also introduced into North America . They are found in kitchen gardens primarily on apple trees , but also on pear trees . They are very common and widespread.
Way of life
The adults appear early in the year from their winter quarters under leaves, lichen or bark near fruit trees and first eat their buds. To lay eggs, the females bite holes in buds and lay their eggs one by one with the help of their ovipositor . A total of 20 to 30 eggs are laid this way. The larvae gradually eat a cavity in the bud, which continues to grow but does not open. The animals also cut the petals, which subsequently die off and turn brown. Pupation also takes place within the bud, the adult beetles bite a hole into the open on the side after hatching. The animals eat the leaves of the plants for about two to three weeks and then go into diapause , which is sometimes interrupted for a short time in September. If they occur in large numbers in agriculture, they can cause significant damage.
literature
- Karl Wilhelm Harde, Frantisek Severa and Edwin Möhn: The Kosmos Käferführer: The Central European Beetles. Franckh-Kosmos Verlags-GmbH & Co KG, Stuttgart 2000, ISBN 3-440-06959-1 .
- Jiři Zahradnik, Irmgard Jung, Dieter Jung et al .: Beetles of Central and Northwestern Europe. Parey, Berlin 1985, ISBN 3-490-27118-1 .
Individual evidence
- ↑ a b c d e Arved Lompe: Determination table Anthonomus . coleonet.de. Retrieved March 4, 2020.
- ↑ a b Anthonomus (Anthonomus) pomorum in Fauna Europaea. Retrieved March 4, 2020
Web links
- Anthonomus pomorum at www.biolib.cz
- www.kerbtier.de