The U.S. Environmental Protection Agency has approved a new label for the growth regulator ReTain (aminoethoxyvinylglycine) that allows pome fruit growers to make a second application prior to harvest. The product blocks ethylene synthesis in the fruit, delaying maturity and controlling pre-harvest drop.

It can now be applied at higher rates or in up to two applications per season. Compared to a single application, the double application of ReTain provides growers with more flexibility in managing harvest labor and helps to maximize the amount of fruit picked at optimum maturity, according to the manufacturer, Valent USA.

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