We did have a hot summer.
Most of the acorns fall in September or October, but it varies from one oak tree species to the other. Once they fall, there are plenty of things you can do with them. You can collect them and dispose of them, or you can shred them and make them into stumpfall.clubted Reading Time: 8 mins.
Our oak trees here in the Midwest tend to drop their acorns beginning in August and likely continue through October.
The amount of acorns that fall annually, with it cyclical booms and busts, impacts the quality of life and life itself for animals and birds that feed on these nuts.
Variability in acorn drop is due to species, age, genetics, environmental factors, and of course latitudinal gradients. Illinois and Florida share some common oak species; however, there are a fair amount of oaks native to Florida that are not found here in Illinois (e.g., live oak, laurel oak, myrtle. Oct 16, Like many trees, oaks have irregular cycles of boom and tree fall pictures, Lexington VA. Boom times, called “mast years” occur every years, with few acorns in between.
But the why and how of these cycles are still one of the great mysteries of science. Scientific research can tell us what a mast year is stumpfall.clubted Reading Time: 3 mins.
Aug 03, When the weather in summer hits degrees, usually the middle of June, I notice that Lots of the tiny acorns fall off the tree. Then the ones left mature and become full size. Around the first of September they begin stumpfall.clubs: Jul 14, It is not normal for oak trees to drop immature acorns during the early to mid-summer.

That is a sure sign of stress. While putting out trail cameras last week, I notice three different oak trees aborting their acorns. Immature acorns were all over the ground and just raining out. A single giant Oak tree can produce nearly ten thousand acorns in a reproductive season.
However, Oak trees do not bear fruit every year and some acorns require up to 18 months to mature. When a forest nut-bearing tree, like an Oak, Pecan, or Walnut, produces a high yield or bumper crop, the year is botanically referred to as a 'mast' year.
Feb 26, Oak tree. Acorn production varies from year to year -- sometimes you'll get a bumper crop, and other times just a few. There isn't a simple way to prevent the acorns from forming. Floral growth regulator can be sprayed on the trees when they bloom to prevent acorn formation.
But timing can be tricky for the average homeowner to detect.