Wildlife Gardeners - North American Wildlife Gardening  

Go Back   Wildlife Gardeners - North American Wildlife Gardening > Wildlife Gardeners of North America Unite > Butterflies & Moths

LinkBack Thread Tools Display Modes
Old 03-20-2010, 03:59 PM   #1
NEWisc's Avatar
Join Date: Nov 2008
Location: Wisconsin
butterfly Monarch Butterflies - An Invasive Plant Threat to Monarch Caterpillars

Caution: The two species of Cynanchum below are invasive species. Monarchs will lay eggs on them, but the caterpillars will die:
As black swallow-wort, Vincetoxicum nigrum L. Moench, and pale swallow-wort, V. rossicum (Kleopow) Barbar., spread throughout the northeastern United States and southern Canada, there is concern about the impact of these invasive plants on populations of the native North American monarch butterfly Danaus plexippus L.
In none of our laboratory or field evaluations was there any survival of monarch larvae on Vincetoxicum species.
BioOne Online Journals - Monarch Butterfly Oviposition on Swallow-Worts (Vincetoxicum spp.)

If you use Cynanchum species for host plants, be sure that you do not use these two species. If these two species are present in your area, please try to eradicate them. They could become a serious threat to monarch populations.

Cynanchum louiseae (syn. Vincetoxicum nigrum) Louise's swallow-wort
Black dog-strangling vine, black swallowwort: Cynanchum louiseae (Gentianales: Asclepiadaceae): Invasive Plant Atlas of the United States

Cynanchum rossicum (syn. Vincetoxicum rossicum) European/pale swallow-wort
dog-strangling vine, European swallowwort: Cynanchum rossicum (Gentianales: Asclepiadaceae): Invasive Plant Atlas of the United States

Age is a biological fact.
Old is a state of mind.
I will age, but I refuse to get old.

Last edited by Cirsium; 06-09-2010 at 09:36 PM.
NEWisc is offline   Reply With Quote

butterflies, butterfly, butterfly gardens, butterfly habitat, caterpillars, cynanchum, cynanchum louiseae, cynanchum rossicum, europeanswallow-wort, invasive, invasive species, louise's swallow-wort, monarch, monarch butterfly, pale swallow-wort, plant, swallow-wort, threat, vincetoxicum nigrum, vincetoxicum rossicum

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 01:58 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.3.2