Our Dahlia excelsa (present from David Hill) has had a real blackfly attack.
I was walking past it this afternoon and saw twisted and 'sad' leaves and
then, further up this very tall Dahlia, several stems and leaves infested
with the critters. I don't remember it suffering like this before and as
there are loads of sparrows nesting in the eaves above it, I think the
ungrateful little devils better get to work!
Ray has sprayed it with an organic spray, so we will inspect again tomorrow.
Is this a particularly bad year for blackfly in others' gardens?

--
Sacha
http://www.hillhousenursery.co.uk
South Devon
(remove weeds from address)
'We do not inherit the earth from our ancestors, we borrow it from our
children.'

In article ,
says...
Our Dahlia excelsa (present from David Hill) has had a real blackfly attack.
I was walking past it this afternoon and saw twisted and 'sad' leaves and
then, further up this very tall Dahlia, several stems and leaves infested
with the critters. I don't remember it suffering like this before and as
there are loads of sparrows nesting in the eaves above it, I think the
ungrateful little devils better get to work!
Ray has sprayed it with an organic spray, so we will inspect again tomorrow.
Is this a particularly bad year for blackfly in others' gardens?


Actually so far I have seen rather fewer blackfly than usual I have not had any
on my beans or nasturtiumsor dahlias as yet.

Gill M
--

addy gill[at]pcservicesreading[dot]co[dot]uk

"Sacha" wrote in message
. uk...
Our Dahlia excelsa (present from David Hill) has had a real blackfly
attack.
I was walking past it this afternoon and saw twisted and 'sad' leaves and
then, further up this very tall Dahlia, several stems and leaves infested
with the critters. I don't remember it suffering like this before and as
there are loads of sparrows nesting in the eaves above it, I think the
ungrateful little devils better get to work!
Ray has sprayed it with an organic spray, so we will inspect again
tomorrow.
Is this a particularly bad year for blackfly in others' gardens?

I had some on my runner beans, but I haven't really done any more checks to
follow it up.

On 31/8/07 18:39, in article ,
"Gill Matthews" Try the wrote:

In article ,
says...
Our Dahlia excelsa (present from David Hill) has had a real blackfly attack.
I was walking past it this afternoon and saw twisted and 'sad' leaves and
then, further up this very tall Dahlia, several stems and leaves infested
with the critters. I don't remember it suffering like this before and as
there are loads of sparrows nesting in the eaves above it, I think the
ungrateful little devils better get to work!
Ray has sprayed it with an organic spray, so we will inspect again tomorrow.
Is this a particularly bad year for blackfly in others' gardens?


Actually so far I have seen rather fewer blackfly than usual I have not had
any
on my beans or nasturtiumsor dahlias as yet.

Okay. I'm sending them right back..... ;-)

--
Sacha
http://www.hillhousenursery.co.uk
South Devon
(remove weeds from address)
'We do not inherit the earth from our ancestors, we borrow it from our
children.'

On 31/8/07 18:53, in article ,
"Alan Holmes" wrote:


"Sacha" wrote in message
. uk...
Our Dahlia excelsa (present from David Hill) has had a real blackfly
attack.
I was walking past it this afternoon and saw twisted and 'sad' leaves and
then, further up this very tall Dahlia, several stems and leaves infested
with the critters. I don't remember it suffering like this before and as
there are loads of sparrows nesting in the eaves above it, I think the
ungrateful little devils better get to work!
Ray has sprayed it with an organic spray, so we will inspect again
tomorrow.
Is this a particularly bad year for blackfly in others' gardens?

I had some on my runner beans, but I haven't really done any more checks to
follow it up.



They love broad beans too, don't they?
--
Sacha
http://www.hillhousenursery.co.uk
South Devon
(remove weeds from address)
'We do not inherit the earth from our ancestors, we borrow it from our
children.'

My dahlias are smothered in black fly too.
Mel,.


"Sacha" wrote in message
. uk...
On 31/8/07 18:53, in article ,
"Alan Holmes" wrote:


"Sacha" wrote in message
. uk...
Our Dahlia excelsa (present from David Hill) has had a real blackfly
attack.
I was walking past it this afternoon and saw twisted and 'sad' leaves
and
then, further up this very tall Dahlia, several stems and leaves
infested
with the critters. I don't remember it suffering like this before and
as
there are loads of sparrows nesting in the eaves above it, I think the
ungrateful little devils better get to work!
Ray has sprayed it with an organic spray, so we will inspect again
tomorrow.
Is this a particularly bad year for blackfly in others' gardens?

I had some on my runner beans, but I haven't really done any more checks
to
follow it up.



They love broad beans too, don't they?
--
Sacha
http://www.hillhousenursery.co.uk
South Devon
(remove weeds from address)
'We do not inherit the earth from our ancestors, we borrow it from our
children.'

In article ,
Sacha writes:
|
| I had some on my runner beans, but I haven't really done any more checks to
| follow it up.
|
| They love broad beans too, don't they?

Yes. They rarely cause much trouble to Phaseolus species - the odd
patch, but that is all. It might have to do with the time of year,
of course.

I have had a few, but they seem mostly to have gone west :-)


Regards,
Nick Maclaren.

"Sacha" wrote in message
. uk...
On 31/8/07 18:53, in article ,
"Alan Holmes" wrote:


"Sacha" wrote in message
. uk...
Our Dahlia excelsa (present from David Hill) has had a real blackfly
attack.
I was walking past it this afternoon and saw twisted and 'sad' leaves
and
then, further up this very tall Dahlia, several stems and leaves
infested
with the critters. I don't remember it suffering like this before and
as
there are loads of sparrows nesting in the eaves above it, I think the
ungrateful little devils better get to work!
Ray has sprayed it with an organic spray, so we will inspect again
tomorrow.
Is this a particularly bad year for blackfly in others' gardens?

I had some on my runner beans, but I haven't really done any more checks
to
follow it up.



They love broad beans too, don't they?

Spraying them with washing-up liquid seems to put them off!

On Fri, 31 Aug 2007 21:32:58 GMT, "Alan Holmes"
wrote:

Spraying them with washing-up liquid seems to put them off!

How's, Joyce, Alan?

Does she know about your past history on usenet?

Mary wrote:
On Fri, 31 Aug 2007 21:32:58 GMT, "Alan Holmes"
wrote:

Spraying them with washing-up liquid seems to put them off!

How's, Joyce, Alan?

Does she know about your past history on usenet?

For the first year I have also had them on runner beans, though
strangely they have confined themselves to just one plant, so I left
them alone. The big problem for me are that they absolutely infest the
young shoots of my fan trained Stella cherry stunting all new growth,
result very few cherries. Any suggestions for help there will be most
welcome.

Bad infestation on annual cosmos and venidium, but none on dahlias planted
in same bed here in midlands , weird?
No sign of any greenfly or whitefly at all, except very early in spring.
Perhaps late coolness in spring, coupled with loadsa rain kept green/white
fly down in breeding season, perhaps dahlias have had time to harden up
before the green/white fly have attacked. Just a theory.
regards
Cineman


regards
Gordon
"Sacha" wrote in message
. uk...
Our Dahlia excelsa (present from David Hill) has had a real blackfly
attack.
I was walking past it this afternoon and saw twisted and 'sad' leaves and
then, further up this very tall Dahlia, several stems and leaves infested
with the critters. I don't remember it suffering like this before and as
there are loads of sparrows nesting in the eaves above it, I think the
ungrateful little devils better get to work!
Ray has sprayed it with an organic spray, so we will inspect again
tomorrow.
Is this a particularly bad year for blackfly in others' gardens?

--
Sacha
http://www.hillhousenursery.co.uk
South Devon
(remove weeds from address)
'We do not inherit the earth from our ancestors, we borrow it from our
children.'

Our Dahlia excelsa (present from David Hill) has had a real blackfly
attack.
I was walking past it this afternoon and saw twisted and 'sad' leaves and
then, further up this very tall Dahlia, several stems and leaves infested
with the critters. I don't remember it suffering like this before and as
there are loads of sparrows nesting in the eaves above it, I think the
ungrateful little devils better get to work!
Ray has sprayed it with an organic spray, so we will inspect again
tomorrow.
Is this a particularly bad year for blackfly in others' gardens?

--
Sacha
http://www.hillhousenursery.co.uk
South Devon
(remove weeds from address)
'We do not inherit the earth from our ancestors, we borrow it from our
children.'

I've just had a couple of stems with small clusters. I tend to use a
domestic Pyrethroid fly spray to spot treat these, not worth mixing
for 2 or 3 stems.

Sacha, your dahlia is now in bud.
David Hill
Abacus Nurseries

On 2/9/07 16:45, in article
, "Dave Hill"
wrote:

Our Dahlia excelsa (present from David Hill) has had a real blackfly
attack.
I was walking past it this afternoon and saw twisted and 'sad' leaves and
then, further up this very tall Dahlia, several stems and leaves infested
with the critters. I don't remember it suffering like this before and as
there are loads of sparrows nesting in the eaves above it, I think the
ungrateful little devils better get to work!
Ray has sprayed it with an organic spray, so we will inspect again
tomorrow.
Is this a particularly bad year for blackfly in others' gardens?

--
Sacha
http://www.hillhousenursery.co.uk
South Devon
(remove weeds from address)
'We do not inherit the earth from our ancestors, we borrow it from our
children.'

I've just had a couple of stems with small clusters. I tend to use a
domestic Pyrethroid fly spray to spot treat these, not worth mixing
for 2 or 3 stems.

Sacha, your dahlia is now in bud.
David Hill
Abacus Nurseries


Could you take a pic and let us see how it turns out, David? Is it outside
or in a greenhouse? Your D. excelsa is looking wonderful, apart from the
blackfly. I've put seed feeders near it in the hope the birds will take the
hint and the blackfly!
--
Sacha
http://www.hillhousenursery.co.uk
South Devon
(remove weeds from address)
'We do not inherit the earth from our ancestors, we borrow it from our
children.'

On 31 Aug, 18:03, Sacha wrote:
Our Dahlia excelsa (present from David Hill) has had a real blackfly attack.
I was walking past it this afternoon and saw twisted and 'sad' leaves and
then, further up this very tall Dahlia, several stems and leaves infested
with the critters. I don't remember it suffering like this before and as
there are loads of sparrows nesting in the eaves above it, I think the
ungrateful little devils better get to work!
Ray has sprayed it with an organic spray, so we will inspect again tomorrow.
Is this a particularly bad year for blackfly in others' gardens?

--
Sachahttp://www.hillhousenursery.co.uk
South Devon
(remove weeds from address)
'We do not inherit the earth from our ancestors, we borrow it from our
children.'

It is just showing colour in the bud at present Sacha, as are several
others including some of this years seedlings,
Will take pics and post them.
David Hill
Abacus nurseries