ديناميكية مجتمع دودة اللوز الشوكية Earias insulana (Boisd.)‎ على البامياء في اللاذقية، سورية

Abstract EN

An experiment was carried out at alsnober research station and at the entomological laboratory of agricultural scientific research center, lLattakia, during 2016 and 2017 growing seasons, in order to study the population dynamics of the spiny bollworm earias insulana (boisd.) on okra plants.

the results indicated that the occurrence of the e.

insulana on okra plants began in early June and lasted until late October, in both seasons.

the occurrence of e.

insulana started at the plant early stages, on terminal shoots and growing points with low incidence for both seasons (1%).

later, the insect tended to lay eggs and feed on the buds, flowers and fruits.

infestation rate on fruits at late October in the 2017 season reached 28%, whereas it reached 0.0%, 2.5%, 2.0% on terminal shoots and growing points, buds and flowers, respectively, and reached the highest infestation rate (32.5%) in late October during the 2017 growing season.

the correlation between infestation rate and the average of temperature was significantly negative and insignificant with the average relative humidity.

the results also showed that the spiny bollworm has three overlapping generations on okra in the study area.