We are using a non-residual pyrethroid called etofenprox, Trade name Zenivex E4 (https://www.cmmcp.org/pesticide-information/pages/zenivex-e4-etofenprox). Pyrethroids are copies of a natural pesticide from the chrysanthemum flower called pyrethrum. Any concerns you have about any residues can be alleviated by washing off your vegetables before you eat them.
These types of pesticides are very short-lived in the environment, and we are using a dilute (4%) solution at a flow rate of 4.5oz/min. at vehicle speeds of 10-15mph. The sprayers are computer-controlled and dispense fine droplets in the 15-20 micron size. Only a minute amount of pesticide is applied in any given area.