▁ ▁In ▁ 2 0 0 0 , ▁the ▁Sent ric on ▁System ▁received ▁the ▁President ial ▁Green ▁Chem istry ▁Challenge ▁Award , ▁an ▁environmental ▁honor ▁from ▁the ▁U . S . ▁government . ▁ ▁Effect iveness ▁Sent ric on ▁is ▁the ▁most ▁extens ively ▁tested ▁of ▁all ▁term ite ▁control ▁products ▁currently ▁on ▁the ▁market . ▁Multiple ▁independent ▁research ▁studies ▁show ▁that ▁its ▁b ait ▁matrix ▁and ▁b ait ing ▁technique ▁is ▁an ▁effective ▁term ite ▁control ▁option . ▁Field ▁evalu ations ▁have ▁documented ▁the ▁elim ination ▁of ▁sub ter rane an ▁term ite ▁activity , ▁including ▁that ▁of ▁Form os an ▁sub ter rane an ▁term ites , ▁often ▁within ▁ 3 ▁to ▁ 6 ▁months . ▁ ▁O ng o ing ▁monitoring ▁and ▁re - b ait ing ▁is ▁a ▁critical ▁aspect ▁of ▁Sent ric on ’ s ▁effect iveness . ▁Without ▁proper ▁o vers ight , ▁re - inf est ation ▁from ▁neighbor ing ▁for aging ▁colon ies ▁can ▁occur . ▁However , ▁such ▁re - inf est ations ▁have ▁not ▁included ▁any ▁members ▁of ▁the ▁original ▁col ony . ▁Long - term ▁studies ▁have ▁shown ▁that ▁by ▁implementing ▁the ▁recommended ▁service ▁frequency , ▁approximately ▁ 6 0 % ▁of ▁the ▁colon ies ▁are ▁elimin ated ▁during ▁the ▁first ▁quarter , ▁approximately ▁ 7 5 % ▁of ▁the ▁colon ies ▁are ▁elimin ated ▁after ▁the ▁second ▁quarter , ▁nearly ▁all ▁colon ies ▁are ▁elimin ated ▁within ▁a ▁year ▁of ▁the ▁initial ▁b ait ing ▁and ▁all ▁colon ies ▁are