Do you know what an Eastern Lubber Grasshopper is? Ugh, all over the place here. Grow to be about 3” long. Not much that will kill them including insecticides unless they are applied directly. My latest joy is a couple of bird feeders that I put in the middle of the “garden”. Hoping Mr. & Mrs. Bluebird that have been visiting it make a whole bunch of little bluebirds that will come eat the grasshoppers!
Good choice with the bird feeder, but I would encourage bird houses in the garden, myself. I would encourage birds, but not feed them .
Being totally unfamiliar with "Eastern Lubber Grasshopper" ,I found some information at a comercial pesticide applicator :
www.http://collierpestcontrol.com/eastern-lubber-grasshoppers.html
They seem to breed and hangout in pine forest areas, and in drainage ditches.
"If you deprive grasshoppers of their favored food, often they will leave or perish. If you cannot control them through hand-picking, insecticides can be applied.
Insecticide-containing baits are often used for grasshopper control.
Bran bait containing corn oil and insecticide is attractive to lubbers, and they will perish after eating only a small amount of the bait." I hope that helps .