On 4/24/14 4:51 PM, Oren wrote:
On Thu, 24 Apr 2014 16:44:49 -0500, Dean Hoffman
" wrote:

Penn State U. says pig weed seed can remain viable up to 40 years.

That sounds just awful. Can you burn it out?

I don't know. It seems unlikely. Farmers around here were burning
fields for awhile trying to get rid of shattercane. I don't remember if
it really helped all that much. Fortunately, GMO came along so crops
could be sprayed to kill it off. So now some farmers are back to
planting grain sorghum.