... Chris Mullin and his cooperators at
Penn State University (ABJ Abstract #20)
have been reverse-engineering some pesti-
cide formulations and testing some of the
common “inert ingredi-ents” for honey bee
toxicity. N-methylpyr-rolidone (NMP) was
the first to be empha-sized. The researchers
found that NMP is toxic to honey bees,
especially so for brood. With a bit of NMP
in the commercial form-ulations, Bravo®
as four times as toxic to brood as the
active ingredient chlorothalonil is by itself.
Tactik® also was four times as toxic to
brood as was straight Amitraz. As I
mentioned earlier, it is going to be very
difficult to try to regulate pesticides based
on potential danger to bees when so many
inert ingredients and adjuvants are compli-
cating the picture.
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