[APWG] Parthenium

[Patricia_DeAngelis at fws.gov]

If I remember the nasty story of Parthenium, this plant is pretty toxic to 
the touch. Direct contact causes contact dermititis and I've seen some 
pictures of some terribly blistered skin; long-term exposure to the pollen 
can cause respiratory problems. So, PROCEED WITH CAUTION.

There has been a lot of work done on this species in India - and some 
experimental eradication using fungal pathogens, for instance.  I don't 
have access to this journal, but you may want to find a copy of the 
following article:

J Assoc Physicians India. 1990 May;38(5):380.
Eradication of parthenium--a simple, economical method.

Here's an interesting treatment option from Pakistan (!) using an aqueous 
solution of allelopathic grasses: 
http://www.pakbs.org/pjbot/PDFs/38(1)/PJB38(1)139.pdf. 

According to this Australian publication, herbicide treatments can be 
effective, but long-term monitoring and ongoing prevention is needed:  
http://www.weeds.org.au/docs/parthenium_weed_mgt_guide.pdf

Good luck!

Patricia S. De Angelis, Ph.D.
Botanist - Division of Scientific Authority
Chair - Plant Conservation Alliance - Medicinal Plant Working Group
US Fish & Wildlife Service
4401 N. Fairfax Dr., Suite 110
Arlington, VA  22203
703-358-1708 x1753
FAX: 703-358-2276

Promoting sustainable use and conservation of our native medicinal plants.
<www.nps.gov/plants/medicinal>




"Marc Imlay" <ialm at erols.com> 
Sent by: apwg-bounces at lists.plantconservation.org
04/26/2011 03:08 PM

To
<mahrine.rashid at gmail.com>, <APWG at lists.plantconservation.org>
cc

Subject
Re: [APWG] Parthenium






How about the usual: spray the monocultural patches and hand pull where 
mixed with natives? 
 
 Marc Imlay, PhD 
Conservation biologist, MNCPPC, 
Board member of the Mid-Atlantic Invasive Plant Council, Vice president of 
the Maryland Native Plant Society, Chair of the Biodiversity and Habitat 
Stewardship Committee for the Maryland Chapter of the Sierra Club. 
 

From: apwg-bounces at lists.plantconservation.org 
[mailto:apwg-bounces at lists.plantconservation.org] On Behalf Of Mahrine 
Rashid
Sent: Friday, April 22, 2011 3:02 AM
To: APWG at lists.plantconservation.org
Subject: [APWG] Parthenium


Hi Fellows
 I am working in Pakistan and interested in Invasive plant speceis. Can 
some body guide me  how we can control/ eradicate Parthenium 
hysterophorus. Ii has rapidly spread in many areas in Pakistan. 
-- 
Regards
 
Mahrine Rashid

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