Effect of olive branch agjng and extracts on the attraction of olive neiroun beetles Phloeotribus Scarabeioides (Bern)‎

الملخص EN

The response branehes at different periods ©ftime was investigated in the laboratory using an olfactometer and in the field.

Results showed that ten-day aged branches were the most attractive to the olive neiroun, indicating that semi-dried branches were xane,؛؛more preferred than dry or fresh ones.

Furthermore, the efficiency of certain chemical solvents including n-h chloroform, acetone, methanol and distilled water in extracting the attractive substances in olive branches was studied using p.

scarabeioides.

The study ة،الا1،ه an olfactometer.

Acetone extract was found to be the most efficient in attracting indicates that the olive neiroun may locate the stressed host trees or detached branches by olfactory perception of volatile ,