دراسة حول دبور الورد (Hymenoptera : Argidae)‎ Arge spp. في سورية

الملخص EN

Laboratory and field studies were conducted to determine the life stage, seasonal abundance and morphology of the sawfly Arge spp.

(Hymenoptera: Argidae).

Two species Arge ochropus (Gmelin) and Arge pagana (Panzer) were found for the first time in Syria.

Two generations were found in the field, the first during April-May and the second during July-August.

However, ten generations with all instars, were developed in the laboratory.

The generation period range was 20-45 days, with 48.11% females.

The number of eggs laid per female ranged between 36-50 eggs.

The level of infestation of Rosa spp.

varied from 9-52 % in three locations in Damascus, Syria during 1996-1998.

Key word: Rose spp., Hymenoptera, Arge spp., life stage, seasonal abundance, Syria.