Peach shoot winder
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| Peach shoot winder | ||||||||||||
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Peach shoot winder ( Grapholita molesta ), specimen with crippled left front and rear wings |
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| Grapholita molesta | ||||||||||||
| ( Busck , 1916) |
The peach shoot moth ( Grapholita molesta ) is a butterfly from the moth family (Tortricidae).
distribution
The peach shoot winder comes from China . It was also found in North and South America , Asia , Australia and Europe .
biology
The females lay the eggs on the fruit trees on warm days. Depending on the temperature, the caterpillars hatch after 6 to 22 days. In spring and summer the caterpillars feed on the sprouts and fruits.
The sex pheromones of the female moths consist of a mixture of isomers with (Z) -8-dodecen-1-yl acetate as the main component and (E) - 8-dodecen-1-yl acetate and (Z) -8-dodecen-1- ol as minor components. In order for the pheromone to have its optimal effect on the males, the mixture must contain 7% (E) -8 isomer.
The confusion method is used to combat peach shoots in orchards .
supporting documents
- ^ J. Botha, D. Hardie, M. Poole, A. Reeves: Oriental fruit moth (Grapholita molesta): Exotic threat to Western Australia. Government of Agriculture: Factsheet No. 4/2004
- ↑ N. Varela, J. Avilla, C. Gemeno, S. Anton: Ordinary glomeruli in the antennal lobe of male and female tortricid moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae) process sex pheromone and host-plant volatiles. The Journal of Experimental Biology 214, 637-645, 2010
- ^ Habermehl GG, Hammann EP, Krebs CH, Ternes W .: Naturstoffchemie an introduction, 3rd edition. Springer Verlag, Berlin 2008, p. 163
Web links
- Grapholita molesta (BUSCK, 1916) - peach shoot curlers, peach curlers. Lepiforum e. V., accessed on July 6, 2013 .