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Editor: Nelson Poirier    Proofreader: Louise Nichols

Saturday, 4 July 2015

July 4 2015

**There have been no reports yet for Saturday morning of the SCISSOR-TAILED FLYCATCHER [Tyran à longue queue] at Bouctouche as of 8 a.m., and some have asked if it could be reported if it is still there today. If it is spotted today, please post it to Nature NB or call Dave Christie at 882-2100.

**The giant Moths [Papillons nocturnes] of the season are coming on thick and fast. Jack Perry had a striking POLYPHEMUS Moth [Polyphème d'Amérique] arrive to his deck in Saint John on Thursday night. Brenda Ryan also had an AZALEA SPHINX Moth [Darapsa choerilus] visit her Moncton home this past week. Susan Richards got a photo of a GALIUM Moth [Sphinx du gaillet], a.k.a. BEDSTRAW HAWK-MOTH. This is not a commonly seen one as an adult, but the striking Caterpillars [Chenilles] are more frequently seen in the fall. Susan also got a photo of a surprisingly cooperative HUMMINGBIRD CLEARWING MOTH [Sphinx colibri], which is a Sphinx Moth, and a BLACK SWALLOWTAIL Butterfly [Papillon du céleri], all at her Taylor Village home yard.

**Susan also photographed a colourful display in the sky at 9:15 p.m. Thursday evening. Curt Nason explains it’s a RED RAINBOW. The camera was probably pointed southeast. The sun had just set, so mostly the red part of the spectrum was scattering through the atmosphere. The photo is attached.

**A comment yesterday on the toxicity of Milkweed [Herbe à coton] got appropriate attention to give some excellent exchange of thoughts that are best expressed by paraphrasing interesting comments from Jim Wilson, Jim Edsall, and Ron Arsenault. It’s good the topic was brought forward to allow these comments to reach a wide audience. Comments from Jim Wilson, Jim Edsall, and Ron Arsenault follow, and all thanks to Bruce Coates for bringing up the topic and the comments that it led to.

Comments courtesy of Jim Wilson
“Milkweed has long been considered by the agricultural industry as a noxious weed and has been listed as that in Ontario and other jurisdictions for a long time.
Because if its vital importance to Monarchs I understand that governments are being forced to take a more balanced viewpoint looking forward. In following developments in the US on the conservation of Monarchs, the growing of milkweeds in a wide variety of locations is now a priority after a Presidential order issued by Mr. Obama late last year.

In the past it was easy to condemn milkweed as a noxious weed when the only viewpoint being expressed about it came the agricultural sector. At that point, no one else really cared. That viewpoint was based on all the right reasons, of course, but when its importance to Monarchs and other pollinators is put on the table, a more balanced approach is needed. My understanding is that Ontario intends to remove milkweed from its noxious weed list in future.

Common milkweed does spread through rhizomes but its spread is nothing as rapid or as uncontrollable as Japanese Knotweed or some other problem plants. I see nothing wrong with planting it on one's property as long as you can mow around it or put it in a location where its spread doesn't affect a farmer's fields. In fact, I plan to transplant more this summer to our property. I moved some a few years ago but they eventually died out as they apparently couldn't compete with the native plants here in my field. I'll need to prepare and maintain a better bed for it this time until it gets established.

I do have about 40 Swamp Milkweed plants that I established three years ago and they're doing very well on the sunny south end of our house. That's where the seeds that gave rise to your seedlings at the FON came from, last fall.”

Comment from Jim Edsall
Nelson, just responding to the Milkweed toxicity discussion. From what I have read Common milkweed  would have to be eaten in quite a large amount in order to harm a large mammal, in fact I believe parts of the plant are edible. I know some species of milkweed are more toxic but syriaca not so much. Some of the western species and whorled milkweeds are quite toxic.


Courtesy of Ron Arsenault
Water Hemlock (Cicuta maculata) is common along the drainage ditches on the Tantramar marsh hay fields. This makes one wonder how much of it gets into the hay bales.
The link provided by Bruce suggests that it is problematic if grazed, but does it retain its toxicity after being dried as hay?
If I remember correctly, Water Hemlock is the most violently toxic plant to humans in this part of the world. I do not know if it is as potent to cattle, nor do I recall how the toxicity is affected after the plant is cut and dried.

Nelson Poirier

Nature Moncton
AZALIA SPHINX MOTH. JUNE 30 2015.BRENDA RYAN.

BLACK SWALLOWTAIL BUTTERFLY.JULY 2, 2015.SUSAN RICHARDS

GALLIUM SPRINX MOTH.JULY 2, 2015.SUSAN RICHARDS

HUMMINGBIRD CLEARWING MOTH.JULY 3, 2015.SUSAN RICHARDS

POLYPHEMUS MOTH.JULY 3, 2015.JACK PERRY

RED ADMIRAL BUTTERFLY.JULY 2, 2015.SUSAN RICHARDS

RED RAINBOW.JULY 2, 2015.SUSAN RICHARDS