تقصي انتشار و دراسة حياتية حشرة ذبابة تدرن ساق الشعير Mayetiola hordei Keiffer في سورية

الملخص EN

Barley stem gall midge (BSGM), Mayetiola hordei, is an important pest affecting barley in the Mediterranean region, Europe and North Africa.

Recently, this pest has been causing economic damage to barley fields in northern Syria.

Survey of BSGM was conducted over barley cultivated areas in Syria in 2011.

The biology of this insect was also studied under controlled conditions at the entomology lab at ICARDA.

Results showed prevalence of BSGM in Aleppo, Edlib and Hama provinces with high infestation rate reaching 100% in some fields.

The highest infestation was recorded in rain-fed fields.

In the laboratory, BSGM laid on average 114 eggs/female at 20±2º C.

The insect life stages were completed in 33.25 days at 20±2º C.

Both females and males lived around three days and the sex ratio was 1:1 (male: female).