We have a red oak tree that has acorns in the fall. Right now I have noticed hollow green balls on the tree. They are about the size of a golf ball and are blowing off the tree because of the high winds we have had recently. When you crack them open, there's a puff ball inside. I've never noticed these on this tree before, is this normal?
Joined: Sat Jan 08, 2005 6:55 pm Posts: 286 Location: Saginaw,TX
Those are galls not fruits.They are quite normal. Right now a lot shumards have green "balls." They are harmless,so don't be concern. In fact I have only seen the green "balls" only on Shumard red oaks. Has anyone have ever seen them on any other trees?
Joined: Wed Mar 19, 2003 8:38 am Posts: 784 Location: ,
Haven't noticed any at all up here in Allen area. Mine's just all leafy- no galls at all this year or last.
_________________ Shepherd of the Trees
It is not our part to master all the tides of the world, but to do what is in us for the succor of those years wherein we are set, uprooting the evil in the fields we know so that those who live after may have clean earth to till.
I live in Bedford, Tx and have two Schumard Red Oaks in Backyard, at first 4-5 years, no acorns, now slew of acorns, my next door neighbor one, no acorns, comment was, you have a male and female, therefore acorns. I have had hollow balls in two in backyard. Mine are around 8 years old, this year I am getting little round redish with small white specs on outside, balls, cut in half and is a red and white circle core. One site said these are caused by insects. Feedback please.
Oaks are "monoecious" meaning "one house" - the same plant has both male and female flowers. An example of a "dioecious" (two house) plant is the holly - people buy male trees if they don't want berries, female if they do. Ginkgo is also dioecious.
Trees won't generally produce acorns until they are older, so the lack of them on your trees simply means your neighbor's trees aren't old enough yet to be producing them. It can vary from tree to tree and from one species to another.
The galls are produced by insects. They are interesting to open, some are as light as ping pong balls, others are more dense.
my neighbor's Schumard is much taller and older than mine, never has acorns! Should I do anything with these little round balls on the ground or in the tree? Also a friend miles from me, but local, said they have Pin Oak, also has these round reddish and white balls, first time ever.
I don't know anything about such a spray, but it sounds like a waste of money and untold unexpected consequences. You might give Howard a call on Sunday to ask about that. If it is a worthwhile product, he'll probably have heard of it.
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