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Effect of residual copper-mancozeb and the use of protective formulation on persistence of ΦXacm 2004-16 phage on tomato foliage in the greenhouse. Copper-mancozeb was sprayed in the morning, phage was sprayed in the evening of same day in water (nonformulated) or with 0.75% skim milk powder plus 0.5% sucrose (formulated), and phage populations were assessed the following morning. Error bars indicate the standard error.
