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" I know for certain most of these ag chemical are applied when diluted in water and certainly some may require a surfactant*. Of course IF there are other liquid materials you can dilute these product in then others here I would hope would enhance my understanding on such matters."
I worked in the pesticide industry for a number of years. One of the functions I managed was formulations. I just spent a half an hour writing up a responsive answer to the above question. I read what I wrote and said why am I wasting my time? I deleted it. This is a bee forum, not a place to try and teach about Ag formulation practices and all the tricks of the trade.
1. Pesticide manufacturers are not stupid and do not want to kill your bees.
2. The EPA is not stupid and does not want to kill your bees.
3. Insecticides kill bees. It is the bee keepers responsibility to move his bees if needed to avoid getting them sprayed.
4. When bee keepers own the land they have their bees on and forage over they can control what will be sprayed.
5. When bee keepers do not own the land their bees are on and forage over it is their responsibility to move them if the land owner happens to decide to spray. If it is on short notice tough.
6. Roundup does not kill bees no matter how many bee keepers swear it killed their bees.
7. 99% of the time bee keepers spend bitching about neonics is a total waste of time as the alternatives are all far worse and there is no meaningful data to show significant harm other than misapplications or planter dust. The value of neonics to US farmers vastly exceeds the total value of every honey bee in the US.
Could we all just talk about bees and stop trying to run someone else's business that in general we know nothing at all about?
Dick
" Any discovery made by the human mind can be explained in its essentials to the curious learner." Professor Benjamin Schumacher talking about teaching quantum mechanics to non scientists. "For every complex problem there is a solution which is simple, neat and wrong." H. L. Mencken
--------------------------------------------
On Sun, 12/20/15, E.t. Ash <[log in to unmask]> wrote:
Subject: [BEE-L] exposure of native bees in an agricultural landscape
To: [log in to unmask]
Date: Sunday, December 20, 2015, 6:22 PM
a Mr Oliver snip...
Most insecticides are not water soluble--the neonics being
the exception.
And many quickly degrade in the environment or bind to soil
(e.g.
glyphosate) or organic matter (e.g. clothianidin). Thus the
surprising
thing is exactly how they were transported to the
bees. Native bees would
be exposed to nectar and pollen, and to the soil or wood in
which they make
their nests. But most do not travel far from the
nest. The bees sampled
from grassland areas would not be expected to have flown to
treated
cropland.
my comments...
I suspect your notion of neonics being THE exception would
be subject to question. I know for certain most of
these ag chemical are applied when diluted in water and
certainly some may require a surfactant*. Of course IF
there are other liquid materials you can dilute these
product in then others here I would hope would enhance my
understanding on such matters.
Beyond nectar and pollen you seem to have forgotten the
biological need for water... which as far as I can tell a
hive will normally obtain from the closes possible source
and with no apparent choice mechanism for quality.
Lastly.. in soils (even concrete for that matter) water will
tend to 'wick up' thru the pores so rain or irrigation water
does not necessarily simply flow away and downward.
*My last question would be does the chemical + surfactant
better or worse than a chemical that is simply dilutes in
water?
and lastly Merry Christmas to you and yours and I do hope
the New Year brings you a bit more rainfall.
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