Tag: galls

#365daysofbiking From tiny acorns grow

 

August 1st – The various varieties of wasp gall that form on oak trees are necessarily seasonal. Rosy, marble and apple galls form from wasp eggs injected into leaf notes, so grown from them in spring and early summer, and by now are largely vacated and spent.

Knopper and artichoke galls form from eggs laid in acorn buds, corrupting the fruit into a gall from the crop, so don’t start appearing until late summer. Right now they’re developing well, forming a protective, curiously shaped home for the wasp larva to hatch in and develop.

Galls are fascinating things for sure, and are markers of the passing year.

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June 29th – Spotted on the cycleway near Telford station, this oddly tortured oak tree. Generally with a healthy appearance, look closely and the tree is covered in insect galls, whereas the acorns that it has grown are oddly mutated and tiny. The leaves also seem subject to some kind of leaf miner attack.

I feel sorry for the oaks – they seem far more susceptible to such attacks and diseases than other trees. I’m not arborialist – is there a reason why the noble oak suffers so very much?