Please keep us updated. We have pecan trees, too, on our property in Texas and so I am really curious to see how the wasps work. When we purchased our land, there was a pecan contract/lease on the trees but we had the seller terminate it as part of the escrow. The previous owner was paid a set amount per year to allow a third party to come and harvest the pecans. In addition to harvesting, they were responsible for the upkeep of the trees and, from what I understand, this included spraying pesticides regularly. We were not comfortable with this (nor with the stipulations that 1) we would not utilize this area 8 or 9 months per year and 2) they had the right to send a representative out at any time to inspect the orchard without prior notification). Now that we are responsible for the trees, I want to go 100% organic.