Interesting video from expert pear orchardists. Most experts get 35-55 bins per acre after 8 years. That is 16-18 tons per acre. Modern high density orchards are expected to be in production 25 years. These older traditional orchards with 12 foot trees last much longer.
Problems continue in dwarf pear rootstocks. Overhead watering and drip irrigation needs. Washington and Oregon grow 2/3 of the pears grown in the USA. The experts are staying with the big 3 pears which are bartlett, anjou, bosc. All 3 are highly susceptible to fireblight.
AEB0056.pdf (1.5 MB)
"The average yield for a mature and healthy standard height pear tree is 200 lbs. (90 kg), while mature semi dwarf trees yield on average 100 lbs. (45 kg). "