Larval tunnels are shallow with frequent openings to the outer bark, where red frass accumulates. The larvae can't bore into the cambium unless a wound of some sort is present. Because most of the tart cherries in New York are mechanically harvested, APB has become the major borer pest in some orchards in the Lake Ontario fruit growing region. In Michigan, directed trunk sprays are recommended in cherries at petal fall, when first generation adults are emerging. Flight phenology in New York is similar.
Adults begin to emerge during bloom and the flight peaks around petal fall or shortly thereafter.
Lorsban 4E used for lesser peachtree borers in late May or early June will provide control against any APB that may be present. This spray is reported to give season-long control of APB and the sesiid borers in Michigan, but later applications are thought to be less effective in controlling damage. Research continues in Western New York this season to determine whether the same is true here. New York field reports welcomed.