The soybean tentiform leafminer is a native insect that has recently developed the ability to feed on soybean. The levels of leaf injury caused by this pest are alarming and could threaten soybean yields. Therefore, urgent work is needed to evaluate potential control methods for this pest. The work proposed here is the second year of a three-year project focused on evaluating control methods that could be used to respond to this pest. First, certain insecticides with translaminar activity (ability to move through leaves) proved effective at controlling this pest in the first year of this project. Further work is needed in this second year to evaluate additional insecticides, particularly those with the ability to move through leaves to contact the insects inside the mines. This field efficacy trial will be performed in the field of a cooperating farmer. Second, leafmining insects are generally attacked and killed by multiple parasitic wasps, and our preliminary work has found that the soybean tentiform leafminer is attacked by several species of parasitic wasps. However, further work is needed in this second year to characterize the community of parasitic wasps attacking this pest and quantify the levels of mortality they inflict on the pest populations. Results of this proposed work will allow us to develop integrated pest management recommendations including chemical and biological controls for this pest.