توزع و انتشار الأطوار الحياتية لحشرة حفار ساق التفاح (Zeuzera pyrina L.)‎ على التفاح في محافظة اللاذقية في سورية

Abstract EN

This study was carried out in two apple orchards in two locations (Aramo and Rabia) in Lattakia Governorate during the period from July 2007 until September 2008.

The results showed that, this insect hibernates in different larval instars Fourth, Five and Six, where, there was differences in date of hibernation depending on temperature.

The first appearance of pupa was during the first quarter of May in Aramo in both areas, the average of pupa duration was 15.74 and 16.26 days in Aramo and Rabia, respectively.

Seasonal flying of adults began in May in the regains, with difference in its beginning and ending, and the adult peak dates depending on the prevailing temperature.

Fertilized females started laying eggs immediately after mating, which coincided with the emergence of females from the pupal stage.

In Aramo, the egg-laying period began in mid-June, and continued until early September, whereas in Rabia it began at the end of August, and continued until beginning of September.