Last year was a heavy mast year in Illinois, at least for some oaks. Under some trees it was not possible to take a step w/out stepping on several acorns. Under

Last year was a heavy mast year in Illinois, at least for some oaks. Under some trees it was not possible to take a step w/out stepping on several acorns. Under others the ground was bare. I never did determine if it was that different varieties have different mast years or if they just produced acorns at different times. I suspect it was more likely the former.