Pears bear in 3 to 5 years after planting. If they are harvested too late, they developed off-flavors and core breakdown, postharvest-physiological disorder.
*The pear should be full sized
*Usually the fruit is still green but has started turning yellow, although some varieties are red or russet-colored or blushed with red or pink.
*When tilted, the fruit will easily spate form the tree with its stem still attached.
*The flesh gets whiter
*When cutting the fruit open, juice forms on the flesh
* To test ripeness, cut a fruit open; dark seeds indicate ripe fruit.
How pears should be picked? Carefully hold the stem of the pear on one hand and the fruit spur in the other hand. Gently twist with an upward turn. Remove the ear and stem, not the bumpy, fruit-bearing spur.
It takes several years for a spur to develop, and if damaged or accidentally harvested with the pear the crop will be significantly decreased the following year.