Poor graft incompatibility is usually overcome by using an compatible interstock e.g. Beurre Hardy, for cultivars such as Beurre Bosc. Cultivars such as Comice and Taylor's Gold are, however, fully compatible with quince rootstocks. Pear Pyrus communis Pear rootstocks are generally slow to come into cropping and tree size is much larger than with trees on quince rootstocks. Clonal material e.g. BP 1 and BP 3, is often difficult to propagate. It shows very good anchorage and compatibility.
Some sources are sensitive to fire blight, but others are resistant.
It is sensitive to lime induced chlorosis. It is tolerant of winter cold and of both wet and dry soils. It is also resistant to pear decline. P. calleryana shows good anchorage and compatibility, is very resistant to fire blight and resistant to pear decline. It is sensitive to winter cold injury and lime induced chlorosis.