Probably not without importance:

>It was concluded that amitraz was a
possible human carcinogen and the proposed pear use would pose a risk of
cancer, albeit very
small, to certain exposed groups. It was further concluded that the benefits
for use on pears
outweighed the risks. The Agency conditionally registered amitraz on pears
for four years.
Since alternative products were available for apples, the benefits for
apples did not outweigh
the risks and apples were not registered.

from:
http://www.epa.gov/oppsrrd1/REDs/0234red.pdf
page vi (16).

but also:
>Amitraz is registered for use on pears, cattle, hogs, and cotton (4). It is
not permitted on apples to prevent its residues in processed apples or meat
producing animals which consume apple processing waste (3). Amitraz was a
restricted use pesticide in 1985 because some studies showed it causes
cancer in mice. But re-evaluation of the evidence has led to the current
classification of Amitraz as an unrestricted or General Use Pesticide (GUP

from:
http://pmep.cce.cornell.edu/profiles/extoxnet/24d-captan/amitraz-ext.html


Kind regards,

Ghislain De Roeck,
a (too?)frightened European elsewhere in Belgium :-)

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