Ask a Question forum: What are these things under my oaks?

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Name: Ken Ramsey
Starkville, MS (Zone 8a)
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drdawg
Aug 23, 2015 12:49 PM CST
This is something I have observed every summer but don't know what it is. They max out at 1.5" in diameter and the picture shows two that just fell after a thunderstorm, and others that have been on the ground for several days. They turn brown and shrink when they are left on the ground. What are these "things"?
Thumb of 2015-08-23/drdawg/6af573

drdawg (Ken Ramsey) - Tropical Plants & More
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If God wanted me to touch my toes, he would have put them on my knees.
Name: Celia
West Valley City, Utah (Zone 7a)
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Zencat
Aug 23, 2015 12:53 PM CST
Those look like oak galls.
Name: Jay
Nederland, Texas (Zone 9a)
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Horntoad
Aug 23, 2015 12:56 PM CST
I agree
http://ento.psu.edu/extension/factsheets/galls-oak
wildflowersoftexas.com
texasnatureonline.com


Name: Ken Ramsey
Starkville, MS (Zone 8a)
[url=www.tropicalplantsandmore.com]
Orchids Greenhouse Vegetable Grower Ferns Region: United States of America Hummingbirder
Composter Bromeliad Master Gardener: Mississippi Cat Lover Tropicals Plumerias
Image
drdawg
Aug 23, 2015 1:10 PM CST
Yep, that's what they are. I knew the hard-as-a-rock galls that attach firmly and often girdle small branches/twigs were galls but never knew what these more colorful, soft, marble-like growths were. I pick them up constantly during the summer months and just trash them. I am eliminating some wasps from growing into adults, but probably am not making a dent in this specific wasp population.

Thanks, Celia.
drdawg (Ken Ramsey) - Tropical Plants & More
[url=www.tropicalplantsandmore.com]www.tropicalplantsandmore.com[/url]
If God wanted me to touch my toes, he would have put them on my knees.
Name: Porkpal
Richmond, TX
Charter ATP Member I was one of the first 300 contributors to the plant database! Keeper of Poultry Farmer Roses Raises cows
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porkpal
Aug 23, 2015 2:22 PM CST
I cut one of those open and it seemed to have a little white worm inside...
Porkpal
Name: Ken Ramsey
Starkville, MS (Zone 8a)
[url=www.tropicalplantsandmore.com]
Orchids Greenhouse Vegetable Grower Ferns Region: United States of America Hummingbirder
Composter Bromeliad Master Gardener: Mississippi Cat Lover Tropicals Plumerias
Image
drdawg
Aug 23, 2015 3:18 PM CST
I found out they are oak galls, and two specific varieties of wasps are the cause of them. That white worm you saw was a wasp larva.
drdawg (Ken Ramsey) - Tropical Plants & More
[url=www.tropicalplantsandmore.com]www.tropicalplantsandmore.com[/url]
If God wanted me to touch my toes, he would have put them on my knees.
Name: Porkpal
Richmond, TX
Charter ATP Member I was one of the first 300 contributors to the plant database! Keeper of Poultry Farmer Roses Raises cows
Garden Ideas: Level 2 Celebrating Gardening: 2015 Plant Identifier
porkpal
Aug 23, 2015 4:07 PM CST
I'm glad I didn't decide to taste them before I cut one open.
Porkpal
Name: Ken Ramsey
Starkville, MS (Zone 8a)
[url=www.tropicalplantsandmore.com]
Orchids Greenhouse Vegetable Grower Ferns Region: United States of America Hummingbirder
Composter Bromeliad Master Gardener: Mississippi Cat Lover Tropicals Plumerias
Image
drdawg
Aug 23, 2015 4:27 PM CST
You and me both, porkpal. Whistling

By the way, I am sort of old fashioned. What's your first name?
drdawg (Ken Ramsey) - Tropical Plants & More
[url=www.tropicalplantsandmore.com]www.tropicalplantsandmore.com[/url]
If God wanted me to touch my toes, he would have put them on my knees.
Name: Celia
West Valley City, Utah (Zone 7a)
Pour vivre parmi les fleurs
Irises Garden Photography I was one of the first 300 contributors to the plant database! Celebrating Gardening: 2015 Butterflies Birds
Cat Lover Enjoys or suffers cold winters Hummingbirder Plant Identifier
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Zencat
Aug 23, 2015 9:23 PM CST
Very welcome, Ken. I have a neighbor plagued with them, too.
Name: Alex Junge
MN st paul, (Zone 4a)
Plantsmylove
Aug 23, 2015 9:28 PM CST
I saw a nature show, on you tube called the most magnifscent tree or something like that. it hosts/shows the fig tree and fig wasp. watch it, its really cool
Name: Ken Ramsey
Starkville, MS (Zone 8a)
[url=www.tropicalplantsandmore.com]
Orchids Greenhouse Vegetable Grower Ferns Region: United States of America Hummingbirder
Composter Bromeliad Master Gardener: Mississippi Cat Lover Tropicals Plumerias
Image
drdawg
Aug 24, 2015 6:05 AM CST
Everything I read on these galls say that there is no need to treat for them since they basically don't cause damage to the trees. The wasps are not even a problem to humans. I will just keep cutting off those hard, gray galls attached to the branches and picking up and disposing of the soft ones on the ground.
drdawg (Ken Ramsey) - Tropical Plants & More
[url=www.tropicalplantsandmore.com]www.tropicalplantsandmore.com[/url]
If God wanted me to touch my toes, he would have put them on my knees.
Name: Celia
West Valley City, Utah (Zone 7a)
Pour vivre parmi les fleurs
Irises Garden Photography I was one of the first 300 contributors to the plant database! Celebrating Gardening: 2015 Butterflies Birds
Cat Lover Enjoys or suffers cold winters Hummingbirder Plant Identifier
Image
Zencat
Aug 24, 2015 7:22 AM CST
That's basically what my neighbor said. He and the tree are not bothered so he isn't worried. The tree looks fine.

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