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

egistered products that contain more than one a.i. (Table 61). Carbaryl is a common component
in several fertilizer products used on turf. It is also commonly formulated with other pesticidal
ingredients including rotenone, a botanical extract used to eradicate fish and as an insecticide.
Carbaryl is formulated with malathion (another cholinesterase-inhibiting insecticide), bifenthrin
(a neurotoxic synthetic pyrethroid) and copper sulfate (registered for use as an insecticide,
algicide, and fungicide). Methomyl is formulated with muscalure, a fly attractant used in fly bait
formulations. NMFS is not aware of any carbofuran products that contain other a.i.s.
Table 61. Examples of listed a.i.s on pesticide products containing carbaryl and methomyl.
EPA Product
Registration
Number
A.i.s
305
Other
Ingredients
4-29
Basic cupric sulfate 7%, carbaryl 1.25%, rotenone 0.5%, cube
resins other than rotenone 1%
90.25%
4-59 Carbaryl 0.5%, malathion 3%, captan 5.87% 90. 63%
4-122 Carbaryl 0.3%, malathion 6%, captan 11.7% 82%
4-458
4-333,
Basic cupric sulfate 7%, carbaryl 2% 19%
239-2514,
8119-5,
71096-15
9198-233,
Metaldehyde 2%, carbaryl 5% 93%
9198-234,
9198-235
Carbaryl 2.3%, Bifenthrin 0.058% 97.642%
270-255 Methomyl 1%, component of muscalure 0.025% 98.975%
2724-274 Methomyl 1%, component of muscalure 0.049% 98.951%
7319-6 Methomyl 1%, component of muscalure 0.026% 98.974%
53871-3 Methomyl 1%, component of muscalure 0.04% 98.96%
Nonylphenol (NP) and nonylphenol polyethoxylates are inert ingredients that may be part of a
pesticide product formulation and are common adjuvant ingredients added during pesticide
applications. NP and nonylphenol polyethoxylates are also ingredients in detergents, cosmetics,
and other industrial products and are a common wastewater contaminant from industrial and
municipal sources. NP has been linked to endocrine disrupting effects in aquatic systems. A
national survey of streams found that NP was among the most ubiquitous organic wastewater
contaminants in the U.S., detected in more than 50% of the samples tested. The median
concentration of NP in streams surveyed was 0.8 μg/L and the maximum concentration detected
was 40.0 μg/L (Table 62). Related compounds were also detected at a relatively high frequency
(Koplin, Furlong et al. 2002).