Chlorantraniliprole (Coragen) is a recent addition to the insecticides available for worm control in tobacco. It is very low in toxicity, has a short preharvest interval, and has systemic activity that has the potential to give extended control. Chlorantraniliprole can be either foliarly applied or applied to the soil through the transplant water. Applied in the transplant water, it has the potential to give extended control of hornworm (Manduca sexta) and budworm (Heliothis virescens). This study had the objectives of evaluating the effectiveness and longevity of budworm and hornworm control by a transplant water Coragen application, and comparing Coragen to several other insecticides as a foliar material for worm control. Studies were conducted at the University of Tennessee Research and Education Center at Greeneville in 2010 and 2011. In both years, transplant water application gave effective early season control of budworm and very effective control of hornworm. In 2010, budworm control lasted about 40 days and hornworm control at least 50 days, when budworm pressure required a foliar overspray. In 2011, with lighter insect pressure, worm control lasted about 60 days, but budworm pressure was light until about 60 days after transplanting. Foliar insecticides evaluated in 2010 were chlorantraniliprole, flubendimide (Belt), spinosad (Tracer) and acephate (Orthene). In 2011, foliar insecticides evaluated were chlorantraniliprole, flubendimide and acephate. All were equally effective in both years, with two sprays needed to control worms up to topping time, when no chlorantraniliprole was in the transplant water. The use of chlorantraniliprole in the transplant water reduced the number of sprays required to control worms through topping by one. In both years, one spray was required in addition to the transplant water treatments to control budworms; hornworms never reached threshold levels prior to topping in treatments with chlorantraniliprole in the transplant water. (Reprinted with permission)