Carbaryl, Carbofuran, and Methomyl - National Marine Fisheries ...

EPA also issued generic and product-specific data call-ins (DCIs) for carbaryl in March
2005. The carbaryl generic DCI required several studies for the a.i. carbaryl, including
additional toxicology, worker exposure monitoring, and environmental fate data. The
product DCI required acute toxicity and product chemistry data for all pesticide products
containing carbaryl. In response to the 2005 DCIs, many carbaryl registrants chose to
voluntarily cancel their carbaryl products. Approximately 80% of all of carbaryl end-use
products registered at the time of the 2003 IRED have since been cancelled through this
process or other voluntary cancellations (EPA 2008).
On September 26, 2007, EPA published a revised NMC cumulative risk assessment (EPA
2007), which concluded that the cumulative risks associated with the NMC pesticides
meet the safety standard set forth in the FFDCA. Concurrently, on September 26, 2007,
the RED for carbaryl was completed. The 2007 RED presents EPA’s revised carbaryl
human health risk assessment under FQPA and EPA’s final tolerance reassessment
decision for carbaryl. EPA amended the carbaryl RED in August of 2008. The
amendment updated the 2007 RED to reflect the Revised Occupational Exposure and
Risk Assessment, dated July 9, 2007 (EPA 2008).
The National Pesticide Information Retrieval System (NPIRS) website
(http://ppis.ceris.purdue.edu/htbin/epachem.com) suggests that there are currently 24
registrants with active registrations of 87 pesticide products containing carbaryl.
“Carbaryl is nationally registered for over 115 uses in agriculture, professional turf
management, ornamental production, and residential settings (EPA 2007). Carbaryl is
also registered for use as a mosquito adulticide.
(http://www.umass.edu/fruitadvisor/NEAPMG/145-149.pdf )(EPA 2007).”
Several product labels indicate carbaryl is commonly formulated with other a.i.s. For
example, there are active registrations of carbaryl products that also contain copper
sulfate, rotenone, malathion, captan, metaldehyde, and bifenthrin (NPIRS website).
According to EPA’s BE, 26 carbaryl products are registered to individual states under
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