Black rot on Pear
After fruit set many of the fruits turn black and shrivvel. Some fruit
is unaffected but only a small percentage
Does any one know what this is and if there is any prevention
I have uploaded a picture of this, but not sure where it can be found.
I can send it by Email if requested
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stan
Re: Black rot on Pear
"stan" <stan.28l4w3 [at] gardenbanter.co.uk> wrote in message
news:stan.28l4w3 [at] gardenbanter.co.uk...
>
> After fruit set many of the fruits turn black and shrivvel. Some fruit
> is unaffected but only a small percentage
> Does any one know what this is and if there is any prevention
> I have uploaded a picture of this, but not sure where it can be found.
> I can send it by Email if requested
>
Do the fruits take on a 'waisted' or 'guitar' shape? Are there gaping cracks
or small holes in the fruits? If so you may have Pear Midge. Typically the
fruit will have a funny shape as mentioned and a blckened crack will open
up around part of its girth as the grubs break out and drop to the ground.
You could break open a few and look for grubs, though if they have holes or
cracks in the grubs have typically gone.
Andy.
Re: Black rot on Pear
"Andy" <andrewpreece [at] onetel.com> wrote in message
news:447c0eb2 [at] 212.67.96.135...
>
> "stan" <stan.28l4w3 [at] gardenbanter.co.uk> wrote in message
> news:stan.28l4w3 [at] gardenbanter.co.uk...
>>
>> After fruit set many of the fruits turn black and shrivvel. Some fruit
>> is unaffected but only a small percentage
>> Does any one know what this is and if there is any prevention
>> I have uploaded a picture of this, but not sure where it can be found.
>> I can send it by Email if requested
>>
> Do the fruits take on a 'waisted' or 'guitar' shape? Are there gaping
> cracks or small holes in the fruits? If so you may have Pear Midge.
> Typically the fruit will have a funny shape as mentioned and a blckened
> crack will open up around part of its girth as the grubs break out and
> drop to the ground.
>
> You could break open a few and look for grubs, though if they have holes
> or cracks in the grubs have typically gone.
>
> Andy.
>
The other thing it might be is Pear Scab, where the surface takes on a
rough, thickened appearance and cracks may occur. I'm not sure if that is
what you have either, but it is caused by warm, humid weather apparently,
and can't be cured this year, only by spraying next year.
I've just inspected my pear trees and one has most of the fruits covered in
a kind of browny-black leathery spotting, though they're not shrivelled and
they're hanging on stil, so I've got problems myself!
Re: Black rot on Pear
Andy Wrote:
> "stan" stan.28l4w3 [at] gardenbanter.co.uk wrote in message
> news:stan.28l4w3 [at] gardenbanter.co.uk...
>
> After fruit set many of the fruits turn black and shrivvel. Some
> fruit
> is unaffected but only a small percentage
> Does any one know what this is and if there is any prevention
> I have uploaded a picture of this, but not sure where it can be
> found.
> I can send it by Email if requested
>
> Do the fruits take on a 'waisted' or 'guitar' shape? Are there gaping
> cracks
> or small holes in the fruits? If so you may have Pear Midge. Typically
> the
> fruit will have a funny shape as mentioned and a blckened crack will
> open
> up around part of its girth as the grubs break out and drop to the
> ground.
>
> You could break open a few and look for grubs, though if they have
> holes or
> cracks in the grubs have typically gone.
>
> Andy.
Your description is spot on for what I have. Can you suggest a spray
schedule to control Pear Midge. I gave the trees a tar oil winter wash
in Feb and have sprayed a couple of times with a general insecticide in
the spring.
Regards, Martin
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stan