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--Apple-Mail-252--793751517 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed I am now very confused about what the various reports on our list lately are referring to -- as Jim Edsall pointed out, the name "army worm" is usually applied to other kinds of caterpillars (naked brown ones, I think), and not the hairy two types of tent caterpillars nor the fall webworms. I now know that the Forest Tent Caterpillar, Malacosoma disstria, can occur in very large communal fashion and together "march", but there is no tent involved nor web. If "army worm" in Manitoba refers to Forest Tent Caterpillars, then any reports like that of Patricia's should say what was seen. The identification of F.T.C.s is very easy, with a series of keyhole- shaped white markings along the centre of the back, bordered with blue. Is anyone else confused? Cheers from Jim in Wolfville. Begin forwarded message: > From: Rob Woods <rrtwoods@yahoo.com> > Date: August 18, 2013 9:25:28 PM ADT > To: "naturens@chebucto.ns.ca" <naturens@chebucto.ns.ca> > Subject: Re: [NatureNS] more on tent caterpillars vs. fall webworms > -- was re spanworms -- was Choke Cherries > Reply-To: naturens@chebucto.ns.ca > > Thanks for the information on the Fall Webworms. I am glad they are > not as fast moving as the tent catepillers as I have been able to > control the few attacks on my fruit trees. > > Rob > > To free oneself of knowledge is to die, and thus one lives. - > Krishnamurti > > From: P.L. Chalmers <plchalmers@ns.sympatico.ca> > To: naturens@chebucto.ns.ca > Sent: Saturday, August 17, 2013 10:30:52 PM > Subject: RE: [NatureNS] more on tent caterpillars vs. fall webworms > -- was re spanworms -- was Choke Cherries > > I saw a severe infestation of Army Worms in Riding > Mountain National Park (Manitoba) in 2001, and I will never forget > it. The air was filled with the sound of the caterpillars munching > leaves - as pervasive a sound as Spring Peepers. It was impossible > to walk on the trail to the observation platform at Lake Audy to > see the Bison without stepping on writhing masses of them, > crunching underfoot. > > Ugh. > > Patricia L. Chalmers > Halifax > > At 11:35 AM 17/08/2013, you wrote: >> I would like to add that the Forest Tent Caterpillars are known as >> "Army Worms" in the west, primarily Sask & Manitoba. If you have >> not encountered them when abundant, it is difficult to conceive >> the spectacles of them covering buildings, roads, & "marching" >> across crop fields. >> Angus >> >> From: jimwolford@eastlink.ca >> Subject: [NatureNS] more on tent caterpillars vs. fall webworms -- >> was re spanworms -- was Choke Cherries >> Date: Sat, 17 Aug 2013 01:37:00 -0300 >> To: naturens@chebucto.ns.ca >> >> At the risk of confusing you readers further: Of our two species >> of tent caterpillars, only one is a tent-former. Malacosoma >> americanum is the Eastern Tent Caterpillar, and the caterpillars >> communally spin a tent of silk in a crotch between two or more >> branches, not in the foliage. But the Forest Tent Caterpillar, >> Malacosoma disstria, is mostly found as solitary larvae; however, >> it/they are known to march communally and to aggregate on tree- >> trunks, but never form a tent or silken nest. >> >> Cheers from Jim the Other, in Wolfville. >> >> Jim Edsall wrote on Aug. 15/13: >> >> No. Tent Caterpillers occur in spring and early summer, the two >> species are Malacasoma disstria and Malacasoma americana. They are >> Lasiocampids closely related to the silkmoths. The Fall Webworm >> occurs in late summer. the species is Hyphantria cunea a Tiger >> Moth (Arctiidae) >> >> Jim Edsall >> Dartmouth, N.S. >> check out my website at >> http://www3.ns.sympatico.ca/jim.edsall/ >> > > --Apple-Mail-252--793751517 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=US-ASCII <html><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; = -webkit-line-break: after-white-space; "> I am now very confused about what the various reports on our list lately = are referring to -- as Jim Edsall pointed out, the name "army worm" is = usually applied to other kinds of caterpillars (naked brown ones, I = think), and not the hairy two types of tent caterpillars nor the fall = webworms. <div><br></div><div>I now know that the Forest Tent = Caterpillar, Malacosoma disstria, can occur in very large communal = fashion and together "march", but there is no tent involved nor = web.</div><div><br></div><div>If "army worm" in Manitoba refers to = Forest Tent Caterpillars, then any reports like that of Patricia's = should say what was seen. The identification of F.T.C.s is very = easy, with a series of keyhole-shaped white markings along the centre of = the back, bordered with blue.</div><div><br></div><div>Is anyone else = confused?</div><div><br></div><div>Cheers from Jim in = Wolfville.<br><div><br><div>Begin forwarded message:</div><br = class=3D"Apple-interchange-newline"><blockquote type=3D"cite"><div = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; "><font face=3D"Helvetica" size=3D"3" color=3D"#000000" = style=3D"font: 12.0px Helvetica; color: #000000"><b>From: = </b></font><font face=3D"Helvetica" size=3D"3" style=3D"font: 12.0px = Helvetica">Rob Woods <<a = href=3D"mailto:rrtwoods@yahoo.com">rrtwoods@yahoo.com</a>></font></div>= <div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; "><font face=3D"Helvetica" size=3D"3" color=3D"#000000" = style=3D"font: 12.0px Helvetica; color: #000000"><b>Date: = </b></font><font face=3D"Helvetica" size=3D"3" style=3D"font: 12.0px = Helvetica">August 18, 2013 9:25:28 PM ADT</font></div><div = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; "><font face=3D"Helvetica" size=3D"3" color=3D"#000000" = style=3D"font: 12.0px Helvetica; color: #000000"><b>To: </b></font><font = face=3D"Helvetica" size=3D"3" style=3D"font: 12.0px Helvetica">"<a = href=3D"mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</a>" = <<a = href=3D"mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</a>></f= ont></div><div style=3D"margin-top: 0px; margin-right: 0px; = margin-bottom: 0px; margin-left: 0px; "><font face=3D"Helvetica" = size=3D"3" color=3D"#000000" style=3D"font: 12.0px Helvetica; color: = #000000"><b>Subject: </b></font><font face=3D"Helvetica" size=3D"3" = style=3D"font: 12.0px Helvetica"><b>Re: [NatureNS] more on tent = caterpillars vs. fall webworms --<span = class=3D"Apple-converted-space"> </span>was re spanworms -- was = Choke Cherries</b></font></div><div style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font = face=3D"Helvetica" size=3D"3" color=3D"#000000" style=3D"font: 12.0px = Helvetica; color: #000000"><b>Reply-To: </b></font><font = face=3D"Helvetica" size=3D"3" style=3D"font: 12.0px Helvetica"><a = href=3D"mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</a></font>= </div><div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: = 0px; margin-left: 0px; min-height: 14px; "><br></div> <div = style=3D"color:#000; background-color:#fff; font-family:times new roman, = new york, times, serif;font-size:12pt"><div><span>Thanks for the = information on the Fall Webworms. I am glad they are not as fast moving = as the tent catepillers as I have been able to control the few attacks = on my fruit trees.</span></div><div style=3D"color: rgb(0, 0, 0); = font-size: 16px; font-family: 'times new roman', 'new york', times, = serif; background-color: transparent; font-style: = normal;"><span><br></span></div><div style=3D"color: rgb(0, 0, 0); = font-size: 16px; font-family: 'times new roman', 'new york', times, = serif; background-color: transparent; font-style: = normal;"><span>Rob</span></div><div></div><div> </div><div>To free = oneself of knowledge is to die, and thus one lives. - = Krishnamurti</div><div><br></div> <div style=3D"font-family: 'times new = roman', 'new york', times, serif; font-size: 12pt;"> <div = style=3D"font-family: 'times new roman', 'new york', times, serif; = font-size: 12pt;"> <div dir=3D"ltr"> <hr size=3D"1"> <font size=3D"2" = face=3D"Arial"> <b><span style=3D"font-weight:bold;">From:</span></b> = P.L. Chalmers <<a = href=3D"mailto:plchalmers@ns.sympatico.ca">plchalmers@ns.sympatico.ca</a>&= gt;<br> <b><span style=3D"font-weight: bold;">To:</span></b> <a = href=3D"mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</a> <br> = <b><span style=3D"font-weight: bold;">Sent:</span></b> Saturday, August = 17, 2013 10:30:52 PM<br> <b><span style=3D"font-weight: = bold;">Subject:</span></b> RE: [NatureNS] more on tent caterpillars vs. = fall webworms -- was re spanworms -- was Choke Cherries<br> </font> = </div> <div class=3D"y_msg_container"><br><div id=3D"yiv6038283810"> = <div> <font size=3D"3"> = I saw a severe infestation of Army Worms in Riding Mountain National = Park (Manitoba) in 2001, and I will never forget it. The air = was filled with the sound of the caterpillars munching leaves - as = pervasive a sound as Spring Peepers. It was impossible to walk on = the trail to the observation platform at Lake Audy to see the Bison = without stepping on writhing masses of them, crunching underfoot. = <br><br> Ugh.<br> <br> = Patricia L. = Chalmers<br> = Halifax<br> <br> At 11:35 AM 17/08/2013, you wrote:<br> = </font><blockquote type=3D"cite" class=3D"yiv6038283810cite" = cite=3D""><font size=3D"3">I would like to add that the Forest Tent = Caterpillars are known as "Army Worms" in the west, primarily Sask & = Manitoba. If you have not encountered them when abundant, it is = difficult to conceive the spectacles of them covering buildings, roads, = & "marching" across crop fields.<br> Angus<br> <br> <hr> From: = jimwolford@eastlink.ca<br> = Subject: [NatureNS] more on tent caterpillars vs. fall webworms -- was = re spanworms -- was Choke Cherries<br> Date: Sat, 17 Aug 2013 01:37:00 = -0300<br> To: <a = href=3D"mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</a><br><br= > At the risk of confusing you readers further: Of our two species of = tent caterpillars, only one is a tent-former. Malacosoma = americanum is the Eastern Tent Caterpillar, and the caterpillars = communally spin a tent of silk in a crotch between two or more branches, = not in the foliage. But the Forest Tent Caterpillar, Malacosoma = disstria, is mostly found as solitary larvae; however, it/they are known = to march communally and to aggregate on tree-trunks, but never form a = tent or silken nest. <br><br> Cheers from Jim the Other, in = Wolfville.<br><br> Jim Edsall wrote on Aug. 15/13:<br> </font> <dl><br> = <dd>No. Tent Caterpillers occur in spring and early summer, the = two species are Malacasoma disstria and Malacasoma americana. They are = Lasiocampids closely related to the silkmoths. The Fall Webworm = occurs in late summer. the species is Hyphantria cunea a Tiger = Moth (Arctiidae)<br><br> </dd><dd>Jim Edsall <br> </dd><dd>Dartmouth, = N.S.<br> </dd><dd>check out my website at <br> </dd><dd><a = rel=3D"nofollow" target=3D"_blank" = href=3D"http://www3.ns.sympatico.ca/jim.edsall/"> = http://www3.ns.sympatico.ca/jim.edsall/</a><br><br> = </dd></dl></blockquote></div> </div><br><br></div> </div> </div> = </div></blockquote></div><br></div></body></html>= --Apple-Mail-252--793751517--
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