Final Thoughts<BR>If a grower would drive 4.4-6.5 MPH, not much difference between backpack and tractor. <BR> <BR>If grower drives 9.5 MPH or greater (?), ~50% less spray coverage. <BR> <BR>Could this partially explain observed differences between research and on-farm results??? <BR> <BR>Farmer Resistance? <BR>Too big/late, too fast, too high?????<BR>