Otiorhynque of the olive-tree
The otiorhynque of the olive-tree ( Otiorhynchus cribricollis ), of Curculionidae, is a devastating Insecte.
DescriptionThe adult measures between 7 and 8 mm, brown drawing on the reddish one. The otiorhynque one eats the sheets of the olive-tree. It however also attacks the fruit-bearing Rosacée S, with the Agrume S, the Cotonnier, the Artichaut, etc the larvae live at the expense of roots of Luzerne and armoise.
The adults appear at the end of May and have a nocture activity. They eat the sheets and make notches rather marked on the ends, like holes of perforator. Disturbed, they give up their prey. The day, they are held hidden in the ground, or under various shelters. The larvae practically do not make a damage compared to the adults. An attack of number, exceptional, can result in a total Défoliation.
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