HomeMy WebLinkAboutCOM 0385.156 2012-2014 9/4/2013
Should Glyphosate use be w
Regulated/Modified in Hawaii?
CD
A short summary of some evidence of `�
the dangers of Glyphosate from
academics and the Peer-reviewed L,
literature °
Prepared for the County Council of the Big Island of Hawaii as they
consider bills on limiting GM crops on our island
by Andrea Rosanoff,Ph.D.
Director of Research&Science Information Outreach
Center for Magnesium Education&Research 808-965-7061
13-1255 Malama St.,Pahoa,HI and
Faculty Affiliate: College of Agriculture, Forestry&Natural
Resource Management, Univ.of Hawaii,Hilo
There's been a rapid growth in
the use of Glyphosate Herbicide
in the USA
60
r8IN USA mainly agriculture
u 50
0 40 0
d •
20 `w
no-till
10 from 1970s
1988 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008
Years
Fig.1.Evolution of glyphosate usage in USA.Sources:USEPA,USDA.
From Perez G 1,Vera M S and Miranda L 2011 Effects of Herbicide Glyphosate and
Glyphosate-Based Formulations on Aquatic Ecosystems,Herbicides and Environment.In Herbicides and
Environment.Eds.D A Kortekamp and(Ed.InTech Europe,Europe.(Copy of Full articles available upon
request from Ctr for Mg Educ&Res,808-965-7061)
Comm. No.
3?S. 15-k,
Ref. To: p/pSMre 1
Ref. Dote SCP 0 6 2013
9/4/2013
This Rapid rise in Glyphosate use in
USA (and world) is due to:
• Rapid spread of glyphosate-resistant (GR) crops:
— GR soy
— GR cotton
— GR maize (on Big Island)
— GR canola
— GR alfalfa
— GR sugar beet
• High market glyphosate supply, leading to price
cuts, aggressive marketing
• Wide reliance on glyphosate for weed control
See: Perez et al.,2011
Potential Dangers to Big Island of
Glyphosate Overuse
• Unintended Effects on non-target aquatic
— bacteria and protozoa
— invertebrates
— vertebrates[Perez et al.,2011]
• Possible Teratogenic activity (birth defects);
— Already shown in amphibians and birds[Szekacs&Darvas,2012,pg 263-5]
• Possible genotoxic and hormone modulating activity [Szekacs&
Darvas,2012,pg 265-6]
• Emergence of glyphosate-resistant weeds [Szekacs&Darvas,2012,pg
266-7)
• Poisonous to bees [POUlk,2009]
• May contribute to Bee Colony Collapse Disorder[Rosanoff&Foulk,
2013;Huber,2013)
2
9/4/2013
References:
Perez G L,Vera M S and Miranda L 2011 Effects of Herbicide Glyphosate and
Glyphosate-Based Formulations on Aquatic Ecosystems,Herbicides and Environment.In Herbicides and
Environment.Eds.0 A Kortekamp and(Ed.InTech Europe,Europe.
http://www.intechopen.com/books/herbicides-a,.u-environment/effects-of-herbicide-elvphosate-and-
glyphosate-based-formulations-on-aquatic-ecosyste ms
Szekacs A and Darvas B 2012 Forty Years with Glyphosate.In Herbicides-Properties,Synthesis and Control of
Weeds.Ed.M N Hasaneen.InTech,Europe.http://www.intechopen.com/books/herbicides-properties-
synthesis-a nd-control-of-weed s/forty-years-with-a lyphosate
Foulk K E 2009 Identifying the Role of Glyphosate-Containing Herbicides on Honeybee Mortality Rates and
Colony Collapse Disorder.In Junior Science,Engineering,and Humanities Symposium.Ed.C Reeves,
University of Missouri,St.Louis.
http://www.k12science.missouristate.edu/Junior Academy/MJAS%20Docs/State%202009/Papersg'o202
009/HS ENV/Foulk Kayla HS.pdf
Rosanoff A&Foulk K E 2013 Commend to EPA docket ID number EPA-HQ-OPP-2012-0132. (copy attached.)
See also: http://www.regulations.eov/#lsearchResults;rop=25;po=0;s=fix-864j-7112;fp=true;ns=true
Huber,D.M.2013 Bees,Colony Collapse Disorder,HYPOTHESIS—request copy from Ctr.For Mg Educ.&Res.,
Pahoa,HI 808-965-7061.
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