Here is the final MaluSim simulation for 2012 (pdf). Please let me know if you have any questions or feedback.

Also, we’re starting to see larger (+25 mm) fruit coming off of apple trees. Some of this fruit is abscising as a result of chemical thinning, but there also appears to be fruit that had either poor pollination (not all carpels have seeds) or had seeds that started to grow but died soon thereafter, possibly as a result of freeze damage. As you monitor your blocks for thinning responses, make sure to cut into the fruitlets and look at the seeds. Many of the fruitlets that have damaged or missing seeds are falling off the trees at the same time as those that were chemically thinned.