Residual on Grazon

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Dusty Britches":11t6pj1a said:
Does anyone know what kind of residual on Grazon P+D I should expect at 2 pts per acre?

What about 2, 4-D (Weedmaster)?

They claim a year(I think).
I used Grazon P&D last year, mid september until the first frost, at 1% to spot spray huisache. I saw very little residual effect as winter weeds were still comeing up where I sprayed. Maybe it was just certain types it did not effect.
The people that sold it to me said that is disapated faster here due to the heat.
 
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