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Get ya Galls out for the boys


David Humphries
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Er... Duh! It looks like an artichoke janey, did you not know that!:sneaky2:

 

 

:lol::lol:

 

Seriously though, it's a disfigurement of the acorn rather than the leaf isn't it? Seen a few in the local woods.

 

Sent from Rob's GalaxySII

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Er... Duh! It looks like an artichoke janey, did you not know that!:sneaky2:

 

 

That's one of them funny posh fruits, innit? Don't get them fancy things here in chavcity Northolt.

 

 

 

(I was being ironic, in that it doesn't take a lot of imagination to see the obvious comparison with an edible thistle and a parasitised acorn :biggrin:)

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Pear Rust. Caused by the fungi - Gymnosporangium sabinae. Has gall like protrusions under the leaf. Fruit can be affected, and can also lead to branch canker.

 

The winter phase is a parasite of Juniperus communis causing branches and needles to die (see photo).

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Gymnosporangium.jpg.a902c7ef8d6151c7f101a1f6e6b3a6f8.jpg

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Rhytisma acerinum ? Guignardia aesculi? Both Tar Spot of Maple and Chestnut Leaf Blotch infestations can be reduced by removing the fallen leaves from the site.

 

There also is a species of Rhytisma causing Tar Spot of Willow called R. salicinum (photo 1). And I depict Guignardia aesculi (photo 2), which has a different effect on the leaves of Aesculus then the larvae of the Horse-chestnut leaf miner (photo 3).

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Kastanjemineermot.jpg.81b843c1562415fc122a157b5ab632a0.jpg

Guignardia-aesculi.jpg.1fd771e991b7198977c384b4dfa65771.jpg

Wilg-(Rhytisma-salicinum).jpg.7962a0771eadd0da4911eb105e747337.jpg

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What about the galls of the Bedeguar Gall Wasp on Roses ?

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These are, rather bizarrely, also called Robin's pin cushion galls.

 

Since when has a small song bird had need of sewing utensils???

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