Abstract
Abstract Treatments were applied to 12-yr-old mature trees in a randomized complete block design with 3 replications. Treatments were applied as dilute sprays to the point of drip with an FMC DP-20 handgun sprayer at 375 psi, using approximately 5 gal finished spray/tree. Cover sprays of dormant oil, mancozeb, Funginex, Plictran, and Omite were applied separately to all trees. Samples consisted of 50 fruit/replicate, 150 fruit/treatment. The fruit was collected randomly from around the tree at chest height. Samples were visually inspected, and the numbers of clean and damaged fruit were recorded. Rating fruit for russeting was not possible due to severe freeze damage on 29 Apr. Climatic conditions were typical for Missouri growing conditions, with less than average rainfall until late summer. An early freeze (28 deg. F.) on 29 Apr caused severe crop loss, with the remaining crop having a high percentage of russetting due to the freeze.
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