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<p class=3DMsoNormal><span style=3D'font-size:14.0pt'>I don't w
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Another possibility is Shingles. These appear as itchy, red spots and would be unrelated to your walk. They do have small blisters though.
Don
Don MacNeill
donmacneill@eastlink.ca
----- Original Message -----
From: Martin Alpert
To: naturens@chebucto.ns.ca
Sent: Sunday, August 22, 2010 5:32 PM
Subject: Re: [NatureNS] blackfly bites, or what are they
but why would it appear as individual spots - as individual bites would cause - If a plant brushed against my leg wouldn't you expect something like a wiping action that irritated a larger area; unless, as you say, there existed small cuts/abrasions.
Marty
On Sun, Aug 22, 2010 at 5:14 PM, David & Alison Webster <dwebster@glinx.com> wrote:
Hi Jane & All, Aug 22, 2010
No sources other than personal experience. One example of delayed reaction, that I remember from about 1944, is the very itchy rash that can develop from barley hairs; 3-4 days to come into full bloom as I recall. Close encounters with Hordeum jubatum would likely have a similar effect.
We have a patch of Cornus stolonifera at one edge of the yard. If I brush against it when sweaty then I develop an itch; nothing when dry.
I don't wish to jump to rash conclusions-- but I suspect many delayed rashes that are induced by rough plants arise from exposure of living sub-epidermal tissue, by small cuts/abrasions in the epidermis, to spores, pollen, gemmae, bacteria, dust mites etc.
My Polygonum scabrum was a case of thinking one plant (Polygonum sagittatum), and saying the other.
Yt, Dave Webster, Kentville
----- Original Message -----
From: David&Jane Schlosberg
To: naturens@chebucto.ns.ca
Sent: Sunday, August 22, 2010 2:48 PM
Subject: RE: [NatureNS] blackfly bites, or what are they
Dave, why do you think polygonum scabrum could cause a skin reaction? It's got a high oxalic acid content, but so do so many other plants. Also, I've never seen it in the woods, except in places that are sunny enough to grow grass. My husband has grass allergies, but I don't know of people who are not allergic getting rashes from grass. Do you have a source for this information? I wonder if the dry heat lately would make many plants more irritating, as has happened with the members of the carrot family.....
As for the chiggers theory, I seem to remember from my childhood in Maryland, that chiggers attack under elastic, like waistbands.
Obviously, this thread has caught the attention of a fair number of us, as we all love to walk in the woods.
Jane
-----Original Message-----
From: naturens-owner@chebucto.ns.ca [mailto:naturens-owner@chebucto.ns.ca]On Behalf Of David & Alison Webster
Sent: Sunday, August 22, 2010 2:17 PM
To: naturens@chebucto.ns.ca
Subject: Re: [NatureNS] blackfly bites, or what are they
Hi Martin, Aug 22, 2010
Because they are localized to lower leg, I would suspect some delayed reaction to a knee-high scabrous plant. Possible candidates; Carex spp., grass, Polygonum scabrum...
Yt, Dave Webster, Kentville
----- Original Message -----
From: Martin Alpert
To: naturens@chebucto.ns.ca
Sent: Sunday, August 22, 2010 9:36 AM
Subject: [NatureNS] blackfly bites, or what are they
I walked last thurs into North River Fall, in shorts.
On my lower leg I had quite a few, what looked like, black fly bites. Some 40 on each leg, randomly spaced - not like I brushed into some noxious plant.
Usually they are no problem and the next day they are almost gone.
These itch a little.
Today is Sunday and there really red and slightly raised.
Anybody know what happened?
Marty
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Martin D. Alpert
Alpert Electric
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Antigonish, Nova Scotia
B2G 2L3
902-863-5496
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<DIV><FONT size=2 face=Arial>Another possibility is Shingles. These appear
as itchy, red spots and would be unrelated to your walk. They do have
small blisters though.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Don</FONT></DIV>
<DIV> </DIV>
<DIV>Don MacNeill<BR><A
href="mailto:donmacneill@eastlink.ca">donmacneill@eastlink.ca</A></DIV>
<DIV style="FONT: 10pt arial">----- Original Message -----
<DIV style="BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A
title=alpertelectric@gmail.com href="mailto:alpertelectric@gmail.com">Martin
Alpert</A> </DIV>
<DIV><B>To:</B> <A title=naturens@chebucto.ns.ca
href="mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</A> </DIV>
<DIV><B>Sent:</B> Sunday, August 22, 2010 5:32 PM</DIV>
<DIV><B>Subject:</B> Re: [NatureNS] blackfly bites, or what are they</DIV></DIV>
<DIV><BR></DIV>but why would it appear as individual spots - as individual bites
would cause - If a plant brushed against my leg wouldn't you expect something
like a wiping action that irritated a larger area; unless, as you say, there
existed small cuts/abrasions.
<DIV><BR></DIV>
<DIV>Marty<BR><BR>
<DIV class=gmail_quote>On Sun, Aug 22, 2010 at 5:14 PM, David & Alison
Webster <SPAN dir=ltr><<A
href="mailto:dwebster@glinx.com">dwebster@glinx.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote>
<DIV bgcolor="#ffffff">
<DIV><FONT size=2>Hi Jane & All,
&