دراسة بعض الخصائص الحيوية لحشرة السونة Eurygaster integriceps Puton في شمال سورية

الملخص EN

Laboratory experiments were conducted to determine the date of sexual maturity, fecundity, and feeding time of overwintering adults of Sunn pest, Eurygaster integriceps Puton.

The experiments were conducted at the International Center for Agricultural Research in the Dry Areas (ICARDA).

Sexual maturity and fecundity were studied on adults collected from overwintering sites four times during 2007-2008 seasons, at 20 days intervals starting 20 November.

The results showed that Sunn pest adults started laying eggs on 11 December.

The average total number of eggs laid was 11.39, 16.17, 19.39 and 25.50 eggs/female for the insects collected at the four dates, respectively.

The percent hatched eggs increased from 40.17% at the first date to 87.24% at the last date.

Whereas, the average adults longevity decreased from 31.44and 36.72 days at the first date to 18.39 and 23.89 days at the last date for males and females, respectively.

The results also showed that Sunn pest adults fed and laid eggs only during the day time.