The University of Florida wants to know how bad and is conducting a survey of citrus growers, according to a grower newsletter.
Several theories are circulating about the cause and why some blocks had less drop than others.
Gene Albrigo, a horticulturist at the Citrus Research and Education Center in Lake Alfred, is heading the survey.
The information will be used to try to determine the cause of fruit drop and how to possibly avoid it in the future.
You can either download the survey, print it out and mail in the completed form. Or you can complete it online.
Access the survey by clicking here.
Deadline to submit it is May 30.