This is a message from the Pest Management Database List.
To post to this list send it as an email to [email protected]
To unsubscribe please look at the footer of this email.
-----------------------------------------------------------
You are so kind!
I've got enough information to proceed.
Sorry Tony, I've no detail photos. I'll keep it in mind for the next
time ;)
Thank you so much.
---
Berta Blasi
Conservació - Restauració
Document Gràfic
www.bertablasi.com
[email protected]
626 266 293
El 31/03/2011, a las 18:57, Tony Irwin escribió:
This is a message from the Pest Management Database List.
To post to this list send it as an email to [email protected]
To unsubscribe please look at the footer of this email.
-----------------------------------------------------------
As David says, these are flies which have come indoors to
overwinter. In
this case, however they are not Pollenia, but Musca autumnalis or a
similar
species.
M.autumnalis is a common rural species in Europe, and is only
associated
with humans when it enters buildings to hibernate. Its larvae
develop in cow
dung.
Exclusion can be nearly impossible in an old building - often the best
course of action is simply regular removal using a vacuum cleaner.
There is
no point in killing the flies using pesticides - dead flies will be
food for
Anthrenus, live flies will not. Most of the flies will leave in the
spring,
and it may be that providing them with an easy exit will solve the
problem.
If you want to check the flies' identity, I'd be happy to look at
sample.
Get in touch off-line for contact details.
Tony Irwin
-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of David Pinniger
Sent: 31 March 2011 16:47
To: [email protected]
Subject: RE: [pestlist] A fly plague?!
This is a message from the Pest Management Database List.
To post to this list send it as an email to [email protected]
To unsubscribe please look at the footer of this email.
-----------------------------------------------------------
It needs a close up of a fly to be certain, but they are probably
cluster
flies which come indoors every Autumn to hibernate over winter.
The main species in the UK is Pollenia rudis which breeds in
earthworms in
grassland. The adults love sunny towers.
They are harmless but can be a great nuisance, and the bodies will
provide
food for pests such as Anthrenus and Attagenus.
David Pinniger
-----Original Message-----
From: [email protected] [mailto:[email protected]
]
On Behalf Of Berta Blasi
Sent: 31 March 2011 15:06
To: [email protected]
Subject: [pestlist] A fly plague?!
Dear colleages,
I have a plague of indestructible flies in the archive.
The archive is placed in the high of a tower, in a room of 20m2 and
long ago
it was a jail.
There are million stunned flies (they do not fly, they only move
when you
touch them).
The room is approximately at 10ºC and 50-55% of humidity. There is no
directly beam of sun because the windows are closed if there is
nobody (it
means most of the time). It is cleaned in depth from time to time
but the
flies always re-arise.
The flies stay between the glass of the windows and the shutter as
you can
see in the photo and also on the floor. I have never seen so many
flies
together!
Which can be the reason? What are they eating? In the archive we
didn't
detect any dead animal but that keep on reproducing continuously.
What do we have to do?
Thank you very much for your help.
---
Berta Blasi
Conservació - Restauració
Document Gràfic
www.bertablasi.com
[email protected]
(0034) 626 266 293
------------------------------------------------------------
To send an email to the list, send your msg to
[email protected]
To unsubscribe from this list send an email to
[email protected] and in the body put:
"unsubscribe pestlist"
Any problems email [email protected]
------------------------------------------------------------
To send an email to the list, send your msg to
[email protected]
To unsubscribe from this list send an email to
[email protected] and in the body put:
"unsubscribe pestlist"
Any problems email [email protected]
------------------------------------------------------------
To send an email to the list, send your msg to [email protected]
To unsubscribe from this list send an email to
[email protected] and in the body put:
"unsubscribe pestlist"
Any problems email [email protected]
