So they don't infest neighboring areas with loads and loads of flies. Remember that time from egg to adult vinegar or spotted wing drosophila fly is something over two weeks when the conditions are right, so big piles of culls like these need to disappear fast.
Picture taken by UCD entomologist Frank Zalom on a recent trip down to our area to look at SWD in strawberry, which is becoming a bit of an issue as of late. You'll be hearing more about that later.
In the meantime, grab a shovel and bury these fruit!