Psuedomonas infection readily occurs on weak growing trees during the wet dormant season. Copper sprays can be applied for control but have little effectiveness. Infection is seldom carried over to the next season if pruned out after bloom. Scab and mildew diseases do not appear on Asian pears. Codling moths infection requires 3 or 4 well-timed sprays.
Pear psylla can cause sticky fruit and requires a dormant spray for control.
Asian pears are somewhat resistant to spider mites but may require I or 2 summer miticide to reduce high levels in hot seasons. Stink bugs can cause injury as hard suntan spots on the flesh. The fertilizer and weed control practices are the same as those for European pears. Annual amounts of nitrogen at 100 pounds of N are necessary to maintain vigor. Harvest and Maturity Harvest occurs between mid-August and early October.