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web.extension.illinois.edu/askextension/thisQuestion.cfm?ThreadID=20139&catID=...

3) Some oak trees are genetically poor producers of acorns – absolutely nothing you can do. 4) Acorn production dramatically decreases when oaks reach a certain age and/or a certain diameter. 5) If your oak is in the red oak family, then you can typically expect heavier acorn crops every 3-5 years.

www.wikihow.com/Identify-Oaks-by-the-Acorns

Although there is a great deal of variety in the appearance of leaves, bark and other features, all types of oak trees grow nuts called acorns. Since both the nut itself and its scaly cap have many variations, an acorn is often enough to identify the species.

www.motherearthnews.com/organic-gardening/acorn-facts-zmaz03onzgoe

Learn about oak tree and acorn facts, including the lifecycle of acorns, how acorns feed wildlife, nutrients in acorns and a list of oak tree varieties. Learn about oak tree and acorn facts and ...

www.answers.com/Q/Do_all_oak_trees_have_acorns

Acorns grow on oak trees and can be found all over the ground underneath oak trees especially in the fall. share: What tree has acorns? All Oak trees have acorns. Acorns fall during the fall season.

www.dailypress.com/features/family/home-garden/dp-garden-qa102406-story.html

Q. Some oak trees are producing heavy crops of acorns this year while others aren't. Do acorns have on and off years as far as production is concerned? We have a couple of huge oak trees and once ...

www.quora.com/At-what-age-do-oak-trees-begin-producing-acorns

Some species of Oaks (genus Quercus) can produce acorns as early as 20 years, although optimum production for most oaks occurs after 50 years. Vanderbilt has an ...

homeguides.sfgate.com/type-tree-acorn-69853.html

One thing all trees in the genus have in common, however, is the ability to produce acorns. Live Oak. ... Audubon California: How to Plant an Oak Tree from an Acorn; About the Author.

en.wikipedia.org/wiki/Acorn

The pests can infest and consume more than 95% of an oak's acorns. [citation needed] Fires also released the nutrients bound in dead leaves and other plant debris into the soil, thus fertilizing oak trees while clearing the ground to make acorn collection easier.

www.reference.com/science/oak-trees-produce-acorns-888f10f736eb79f

Oak trees produce acorns once per year. The number of acorns produced can vary from a handful one year to a large amount on what is called a "mast year." A theory that explains the excessive fruit production is predator saturation, when the tree attempts to produce more fruit than can be eaten by predators.

www.bhg.com/.../trees-shrubs-vines/trees/stop-oak-trees-from-producing-acorns

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 ...