I’m a fan of your stink bug theory regarding late season KG Asian pear rot. Noticed high concentrations in my area around the same time as pears were rotting. The above rot Bob is showing I believe is an issue not related to the stink bugs. My thought is that @BobVance issue is caused from a condition I sometimes see when i have to many pears on a tree. Sometimes flavor is bad or nutrients are low if a pear is carrying to much fruit. The fruit is never 100% in that situation. In my situation it happens when there is a glut of water, to much foliage, cold year where there is not enough heat to concentrate sugars (eg.tree is shaded). In my area it’s very rare. The rot im referring to with Korean Giant regarding stink bugs is started external not internal break down like Bob shows here. They are two seperate rot issues. The internal rot Bob describes I call that internal break down and some pears normally high in sugar are more prone to it than others Clapps favorite pear . Of course fungus or bacteria can speed a natural process a long
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