Pesticide Efficacy Against Crm in Florida, 1988

Treatments were replicated 5 times on single-tree plots in a randomized complete block design. An unsprayed buffer tree separated treatment trees within and between rows. Sprays were applied with a handgun using a truck-mounted sprayer at 350 psi on 13 Jun. About 4.0 gal (387 gal/acre) of finished spray was applied to each treatment tree. Water pH was 7.7. Twenty fruit were examined from around the canopy of each sample tree at various times before and after spraying. A 1-cm2 area was examined on each of 2 shaded sides per fruit using a 10 x hand lens. The 2 counts/fruit were combined and recorded as one observation.