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Thu, 18 Apr 2013 21:49:45 -0300 |
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On Thu, Apr 18, 2013 at 3:37 PM, Dave <[log in to unmask]> wrote:
> Different plant species may indeed move the neonic differently. As to the
> volume of pesticide, the total volume( lbs/acre) is likely similar. The
> canola seed is smaller, but the number planted is much greater for canola.
>
The application rate in lbs / acre is VASTLY different.
> On page 14 of EPA Environmental Risk Assessment for clothianidin
>> http://www.scribd.com/doc/46041897/Clothianidin
>>
>
>
> All figures are in pounds of active ingredient per acre (my apologies to
> the metric world but it is the comparison that is important anyway):
>
> mustard (read canola as well) .028
> wheat .002 to .011
> barley .004 to .007
>
> potato .163 to .325
> cotton .063
> broccoli .39 to .42
> radish .50 to .67
> corn .007 to .011
> head lettuce .70 to 2.25
> leaf lettuce .68 to 2.26
>
> So there could be 220 times as much loading to the soil in lettuce as in
> corn.
> There is 1000 fold difference between the low rate in wheat and the high
> rate in lettuce.
>
Paul points out that lettuce, broccoli and radish are not permitted uses
*right now* in the US, but compare potatoes with canola or cotton with
wheat. They are all seed treated but loading rate is very different.
Stan
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