Dolichoderus thoracicus is an ant species which is common found. The presence of D. thoracicus on a plants can minimize the potential threat from insect, especially fruit destructive insects. The society plantations in Sirah Pulau Padang Sub-district are planted with seasonal plants which certainly have the potential threat from fruit destructive insects. It is necessary to observation of D. thoracicus nest on seasonal fruits in society plantations of Sirah Pulau Padang Sub-district to estimate the potential threat from fruit destructive insects. This observation was conduct on January 2019 by observing seasonal fruits found in the society plantations. The results of observation made, found of D. thoracicus nest on mangoesteen and rambutan fruit. Also found the D. thoracicus coloni on duku and raman fruit. The presence of nest and coloni of D. thoracicus on mangoesteen, rambutan, duku, and raman can be estimated the potential threat from fruit destructive insects which less compared to other seasonal fruits in society plantations of Sirah Pulau Padang Sub-district.