Distribution.
The species is widespread in all regions of the Mediterranean olive
Description
the adult beetle is a small dark-colored measuring 2 to 2.4 mm in length. The yellowish-white larvae reach maturity at a length of 3.5 mm through 5 stages of development. Preninfa and nymphs are light in color and measure approximately 2.5 mm.
The species is widespread in all regions of the Mediterranean olive
Description
the adult beetle is a small dark-colored measuring 2 to 2.4 mm in length. The yellowish-white larvae reach maturity at a length of 3.5 mm through 5 stages of development. Preninfa and nymphs are light in color and measure approximately 2.5 mm.
Biology.
In spring, the pair digs a tunnel under the bark of the olive coupling that extends in a gallery of deposition. These galleries are perpendicular to the direction of the industry. Eggs deposited (between 60 and 120 per adult female) give birth to larvae xylophagous. These in turn larvae dig tunnels parallel to the direction of the wood, then perpendicular to the maternal gallery. After one - two months Pupation takes place, the adults emerge from the tunnels that form and scour their surroundings for a period of two - three weeks. In the course of a year may develop up to three generations, the first of which began in June. The winters in a loggia fleotribo dug at the base of a bud or axillary bud.
In spring, the pair digs a tunnel under the bark of the olive coupling that extends in a gallery of deposition. These galleries are perpendicular to the direction of the industry. Eggs deposited (between 60 and 120 per adult female) give birth to larvae xylophagous. These in turn larvae dig tunnels parallel to the direction of the wood, then perpendicular to the maternal gallery. After one - two months Pupation takes place, the adults emerge from the tunnels that form and scour their surroundings for a period of two - three weeks. In the course of a year may develop up to three generations, the first of which began in June. The winters in a loggia fleotribo dug at the base of a bud or axillary bud.
damage. The
fleotribo attacks preferably the timber in which the lymphatic circulation is reduced: trunks, branches that have weakened or suffered damage as a result of adverse climatic events (frost, prolonged drought). It 'a parasite that contributes to a further weakening the plant, in this case are the larvae that are the cause of the damage. Although this can also attack the olive groves in good vegetative state when they are near other trees attacked by this insect. In this case, the adults cause the damage with the following biological process: larvae develop on dead wood or weakened (pruning waste, dried branches, etc..) And the new adults derived from them to pass food over a period which excavates cavities on branches in good vegetative state. They can also cause cuts which determine the ring desiccation of the branch. This action can significantly reduce the production of the following year. The defense strategies of protection against attacks of this insect xylophagous is preventive: it is necessary to maintain the trees in optimal condition for the development by removing weak branches or low. The affected parties must be cut and removed from the olive in order to avoid a further proliferation of the insect. The wood cut, outbreak potential for development should be burnt as soon as possible.
fleotribo attacks preferably the timber in which the lymphatic circulation is reduced: trunks, branches that have weakened or suffered damage as a result of adverse climatic events (frost, prolonged drought). It 'a parasite that contributes to a further weakening the plant, in this case are the larvae that are the cause of the damage. Although this can also attack the olive groves in good vegetative state when they are near other trees attacked by this insect. In this case, the adults cause the damage with the following biological process: larvae develop on dead wood or weakened (pruning waste, dried branches, etc..) And the new adults derived from them to pass food over a period which excavates cavities on branches in good vegetative state. They can also cause cuts which determine the ring desiccation of the branch. This action can significantly reduce the production of the following year. The defense strategies of protection against attacks of this insect xylophagous is preventive: it is necessary to maintain the trees in optimal condition for the development by removing weak branches or low. The affected parties must be cut and removed from the olive in order to avoid a further proliferation of the insect. The wood cut, outbreak potential for development should be burnt as soon as possible.
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