päärynäpuu

Päärynäpuu, the Finnish common name for the pear tree, refers to trees of the genus Pyrus in the Rosaceae family. The most widely cultivated species is Pyrus communis, the common pear, while ornamental pears such as Pyrus calleryana are also grown in landscapes.

Päärynäpuut are deciduous trees that typically reach 10–15 meters in height, though they can be taller. They have broad, oval to rhombic leaves with finely serrated margins. In spring, they produce clusters of white flowers that are often fragrant. The fruit is a pome that ripens in late summer or autumn; cultivars vary widely in size, shape, and flavor, from small, pear-shaped fruits to larger, more rounded ones. Many pear varieties require cross-pollination from another pear cultivar or quince for reliable fruit set, and bees play an important role in pollination.

Päärynäpuut are native to Europe and western Asia but are cultivated in temperate regions around the world. They prefer deep, fertile, well-drained soil and a position with full sun. Pruning and training are common cultural practices to maintain tree structure and improve fruit production. They are relatively long-lived but sensitive to cold damage in late spring and to a range of pests and diseases.

Common diseases include fire blight (Erwinia amylovora), pear scab (Venturia pirina), and powdery mildew. Pests such as pear psylla and codling moth can affect fruit quality.

Uses: the fruit is eaten fresh, canned, or used in cooking and baking. The wood is hardwood and used for small tool handles and crafts. Ornamental pear cultivars are used in landscaping for their showy blossoms and autumn color.