Title : Apricot Weevil
Visit Count : 1340 Time(s)
Upload Date : 1/7/2016 - 2 Year(s) ago
Category : Stone fruit
Thursday, January 7, 2016
Visit Count : 1340 Time(s)
Upload Date : 1/7/2016 - 2 Year(s) ago
Category : Stone fruit
Pest Name: Apricot Weevil, Rhynchites auratus Scopoli (Col: Rhynchitidae)

cherry weevil is the most important insect pest of cherry, sour cherry and other stone fruits in Iran.
Symptoms of damage:
Attacks on green fruits cause mottling, which sometimes cover the whole fruit. Severely damaged fruits drop. The larvae feed on the nucleolus of the seeds.
Morphology:
Adult insects are metalic green or red in colour, having scattered hairs on elytra.
Eggs are white - yellow and oval shaped.
Biology:
The insect showed to hibernate as last instar larvae in mud chambers in the siol. Adults appeared in mid April and their appearance coincided cherry tree bloosoming. They mated several times after feeding on fruit pulp and young leaves. The onset of oviposition coincided the completion of petals fall. Females layed only one egg on each fruits. larvae penetrated into fruits' stones after 24hrs. larval period lasted 18-20 months, thus each generation of this insect completed in two years.
Control
autumn plowing and autumn plowing with winter irrigation
spray the chemicals for control of Cherry Weevils

Refrence:

1- DEZIANIAN A. 2005. INVESTIGATION ON BIOLOGY OF CHERRY WEEVIL RHYNCHITES AURATUS (SCOP) IN SHAHROOD REGION. APPLIED ENTOMOLOGY AND PHYTOPATHOLOGY SEPTEMBER, Volume 73 , Number 1; Page(s) 105 To 117.

2-Kolyaee, R. Dezyanian, A. Shokat, A. A. Joyandeh, A. 2002. Investigation of control methods with cherry Weevil (Rhynchites auratus Scop. www. agris.fao.or
3-http://www7.inra.fr
Preparation: Zakkie Ahmadi
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