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Strange growths on acorns
Please see these pictures:
http://picasaweb.google.co.uk/mphear...99535032005154 We have several oak trees in our neighbourhood, where we have lived for over 30 years, and the first time we have noticed that some ( about 5-10%) of the fallen acorns have these growths. Please can anybody explain what they are? |
Strange growths on acorns
On 28/9/08 10:42, in article , "Malcolm
H" wrote: Please see these pictures: http://picasaweb.google.co.uk/mphear...OPy2k#slidesho w/5250999535032005154 We have several oak trees in our neighbourhood, where we have lived for over 30 years, and the first time we have noticed that some ( about 5-10%) of the fallen acorns have these growths. Please can anybody explain what they are? No idea if this IS it but try Googling on Knopper Gall. -- Sacha http://www.hillhousenursery.com South Devon (new website online) |
Strange growths on acorns
"Malcolm H" wrote in a message: Please see these pictures: http://picasaweb.google.co.uk/mphear...99535032005154 We have several oak trees in our neighbourhood, where we have lived for over 30 years, and the first time we have noticed that some ( about 5-10%) of the fallen acorns have these growths. Please can anybody explain what they are? --- Good photos, they're Knopper Galls. Gall wasps are the culprits. Google the RHS advice pages and read all about them. MD |
Strange growths on acorns
"Mike Derby" wrote in message ... "Malcolm H" wrote in a message: Please see these pictures: http://picasaweb.google.co.uk/mphear...99535032005154 We have several oak trees in our neighbourhood, where we have lived for over 30 years, and the first time we have noticed that some ( about 5-10%) of the fallen acorns have these growths. Please can anybody explain what they are? --- Good photos, they're Knopper Galls. Gall wasps are the culprits. Google the RHS advice pages and read all about them. MD Thank you Gentlemen for your expert advice, I'm sure you are correct. I have added two more pictures to the album, one showing an insect nest in a neighbouring tree and the other showing the foliage of the tree. Please could you identify what sort of insect nest it is (could it be a Gall Wasp nest?) also please could you identify the tree (some kind of Cotoneasta?) http://picasaweb.google.co.uk/mphear...y=-AN0HKOPy2k# Many thanks again Malcolm H |
Strange growths on acorns
"Mike Derby" wrote in message ... "Malcolm H" wrote in a message: Please see these pictures: http://picasaweb.google.co.uk/mphear...99535032005154 We have several oak trees in our neighbourhood, where we have lived for over 30 years, and the first time we have noticed that some ( about 5-10%) of the fallen acorns have these growths. Please can anybody explain what they are? --- Good photos, they're Knopper Galls. Gall wasps are the culprits. Google the RHS advice pages and read all about them. MD Thank you Gentlemen for your expert advice, I'm sure you are correct. I have added two more pictures to the album, one showing an insect nest in a neighbouring tree and the other showing the foliage of the tree. Please could you identify what sort of insect nest it is (could it be a Gall Wasp nest?) also please could you identify the tree (some kind of Cotoneasta?). http://picasaweb.google.co.uk/mphear...y=-AN0HKOPy2k# |
Strange growths on acorns
"Mike Derby" wrote in message ... "Malcolm H" wrote in a message: Please see these pictures: http://picasaweb.google.co.uk/mphear...99535032005154 We have several oak trees in our neighbourhood, where we have lived for over 30 years, and the first time we have noticed that some ( about 5-10%) of the fallen acorns have these growths. Please can anybody explain what they are? --- Good photos, they're Knopper Galls. Gall wasps are the culprits. Google the RHS advice pages and read all about them. MD Thank you Gentlemen for your expert advice, I'm sure you are correct. I have added two more pictures to the album, one showing an insect nest in a neighbouring tree and the other showing the foliage of the tree. Please could you identify what sort of insect nest it is (could it be a Gall Wasp nest?) also please could you identify the tree (some kind of Cotoneasta?) http://picasaweb.google.co.uk/mphear...y=-AN0HKOPy2k# Many thanks again Malcolm H |
Strange growths on acorns
"Mike Derby" wrote in message ... "Malcolm H" wrote in a message: Please see these pictures: http://picasaweb.google.co.uk/mphear...99535032005154 We have several oak trees in our neighbourhood, where we have lived for over 30 years, and the first time we have noticed that some ( about 5-10%) of the fallen acorns have these growths. Please can anybody explain what they are? --- Good photos, they're Knopper Galls. Gall wasps are the culprits. Google the RHS advice pages and read all about them. MD Thank you Gentlemen for your expert advice, I'm sure you are correct. I have added two more pictures to the album, one showing an insect nest in a neighbouring tree and the other showing the foliage of the tree. Please could you identify what sort of insect nest it is (could it be a Gall Wasp nest?) also please could you identify the tree (some kind of Cotoneasta?) http://picasaweb.google.co.uk/mphear...y=-AN0HKOPy2k# Many thanks again Malcolm H |
Strange growths on acorns
On Sep 28, 6:11 pm, "Malcolm H" wrote:
"Mike Derby" wrote in message ... "Malcolm H" wrote in a message: Please see these pictures: http://picasaweb.google.co.uk/mphear...ey=-AN0HKOPy2k... We have several oak trees in our neighbourhood, where we have lived for over 30 years, and the first time we have noticed that some ( about 5-10%) of the fallen acorns have these growths. Please can anybody explain what they are? --- Good photos, they're Knopper Galls. Gall wasps are the culprits. Google the RHS advice pages and read all about them. MD Thank you Gentlemen for your expert advice, I'm sure you are correct. I have added two more pictures to the album, one showing an insect nest in a neighbouring tree and the other showing the foliage of the tree. Please could you identify what sort of insect nest it is (could it be a Gall Wasp nest?) also please could you identify the tree (some kind of Cotoneasta?) http://picasaweb.google.co.uk/mphear...y=-AN0HKOPy2k# Many thanks again Malcolm H that nest is a beautiful social wasp nest (stripy stingy waspy wasps). Gall wasps are solitary (they do not make nests/colonies. They use galls instead (to lay their eggs; which cause the galls to form). They are small and not very wasp like if stripy stingy social wasps are what you think of when you think of wasps. |
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