Abstract

Abstract Treatments were replicated 5 times on single-tree plots in a randomized complete block design in 2 tests. An unsprayed buffer tree separated treatment trees within and between rows. Sprays were applied with a handgun using a truck-mounted sprayer at 400 psi on 29 May (ca 3-5 gal/tree) and 8-9 Jul (ca 4-6 gal/tree) (test 1) and 11 Jul (ca 4-6 gal/tree) (test 2). Water pH was 7.9 and 7.8 respectively for test 1 and 7.9 for test 2. Twenty fruit were examined 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. The combined 2 cm2 count per fruit of living motile CRM was recorded as 1 observation.

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