Powdery mildew

[MATTMOSS]

Forest Research - Oak mildew

 

 

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thank you David

[slack ma girdle]

It is rampant here in the woods where i am spraying Rhodie. The sycamore understory is suffering, but not with mildew. I have not noticed it on anything else, but i shall now start looking.

 

Sent from my Galaxy arse using tupping talk.

Check ALL the simple things first.

[Treemoose]

I put something on my work Facebook page suggesting an apparent increase in Erysiphe alphitoides 4 or 5 weeks ago. The summer created ideal conditions for it, so it's probably not surprising.

 

What is fairly apparent to me is that in general, it is far less abundant (and possibly less frequent as well) down here in Kent than it was when I was working in the scenic, yet slightly damp, Forest of Bowland.

 

I live in Kent and the oaks in the field behind me are covered in the stuff

I think they are about 15/20 years old

[HCR]

Is that an annual thing or just this year?

 

Was looking at some very mildewy sycamores on Saturday.

[Danavan]

Thanks for spreading the treewatch link David.

 

I shall be passing by an oak I have seen roadside tomorrow on my way to one of the co's I sub for that looked like it is infested with this as I passed a few weeks ago.

 

I will log this down if it is a correct identification.

 

Don't think one of my bonsai that gets it regularly will count though....

[David Humphries]

Don't think one of my bonsai that gets it regularly will count though....

 

What species is the bonsai, Dan ?

 

 

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[Danavan]

Oak is the only one affected. But she is a young work in progress at the mo along with other ones I have on the go.

[Tony Croft aka hamadryad]

It is a "bad year" for the powdery mildew, weather has suited its lifecycle down to a tee, it is bad in some years, les so in others, our oaks have lived with it no doubt for many many generations, and will continue to do so.

 

Just another one of those that is there and always has been.

[Danavan]

No argument their Tony. Interesting to keep a tab on it though imo.

 

I read that the moth affecting chestnuts has been about for a long time & the change in human activity has exasperated it's spread. Another story I know but interesting never the less as to it's movement.

[David Humphries]

It is a "bad year" for the powdery mildew, weather has suited its lifecycle down to a tee, it is bad in some years, les so in others, our oaks have lived with it no doubt for many many generations, and will continue to do so.

 

Just another one of those that is there and always has been.

 

 

Not so sure that's the case Tony, as according to Forest Research & those that have studied 'Oak Mildew' in particular, it's a relatively recent addition to these shores, having been in England only since 1908, which isn't that long ago in an oaks life time.

 

 

I think this is why Ted is particularly concerned as he believes that it's far more prevelant now (even taking into account this years climatic conditions) than it has been.

 

 

 

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