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Re: GE buffer zone requirements
David et al:
The guidelines below are the Canadian Food Inspection agency (a minor
sub department of Ag Canada) field release data for a large number of GM
crops. I understand that the separation distances are binding but they
are in my estimates unreal , for example Canola is know to spread pollen
much further than the established limit but change lags knowledge by
many years. I understand that the separations were many based on
commercial seed production conventions for non GM crops that were not
scientifically established but based on convention, belief and
agreement. Cheers, Joe
http://www.inspection.gc.ca/english/plaveg/pbo/dir/dir0007appe.shtml#APPENDIX%202
APPENDIX 2: MINIMUM ISOLATION DISTANCES AND
PERIODS OF POST-HARVEST LAND USE RESTRICTION
Crop
Minimum Isolation Distance
Period of Post-harvest Land Use Restriction
Agrostis palustris (creeping bentgrass)
300 m (without cropping)
3 years
Beta vulgaris (sugar beet)
3 m
2 years
Brassica carinata (ethiopian mustard)
200 m from other Brassica spp.
3 years
Brassica juncea (brown mustard)
200 m from other Brassica spp.
50 m from weedy relatives
5 years
Brassica napus (argentine rape)
200 m from other Brassica spp.
50 m from weedy relatives
3 years
Brassica rapa (polish rape)
400 m from other Brassica spp.
50 m from weedy relatives
5 years
Capsicum annum (pepper)
20 m
1 year
Cucurbita pepo (squash)
650 m
1 year
Glycine max (soybean)
3 m
1 year
Hordeum vulgare (barley)
3 m
2 years
Lens culnaris (lentil)
3 m
1 year
Linum usitatissimum (flax)
3 m
3 years
Lolium perenne (perennial ryegrass)
300 m (without cropping)
3 years
Lycopersicon esculentum (tomato)
20 m
1 year
Medicago sativa (alfalfa)
300 m
3 years
Nicotiana tabacum (tobacco)
400 m
1 year
Phalaris canariensis (canary seed)
3 m
2 years
Pisum sativum (pea)
3 m
1 year
Populus spp. (poplar)
2 guard rows
5 years
Sinapis alba (white Mustard)
400 m from other S. alba
50 m from other Brassica spp.
5 years
Solanum tuberosum (potato)
one blank row
2 years
Trifolium repens (clover)
300 m (without cropping)
3 years
Triticum aestivum (wheat)
30 m
2 years
Vitis spp. (grape)
Bagging of flowers
3 years
Zea mays (corn)
100 m
1 year
dsc17@CORNELL.EDU wrote:
Hello folks
I am trying to look up the requirements/laws/guidelines
for establishing buffer zones to prevent contamination
of non-GM crops by GM crops (in both organic and
conventional farming)
I spent an hour (unsuccessfully) searching the USDA
web page and figured maybe one of you can save me some
time...
questions:
does a farmer growing GM crops have to establish a
buffer? or are those growing non-GM crops responsible?
is there a difference (in the second quesiotn) if the
farmer is organic versus convnentional?
are these legal requirements or just suggestions?
thanks, in advance
David
.