Methomyl

Synonyms

Lannate; Metomil, Mesomile, Acinate, Agrinate, DuPont 1179, Flytek, Kipsin, Lanox, Memilene, Methavin, Methomex, Nudrin, NuBait, Pillarmate, SD 14999

Category

Carbamate Insecticides

Description

White, crystalline solid with a slight, sulfur-like odor. [insecticide]; [NIOSH]

Sources/Uses

Used to kill insects on vegetables, fruits, cotton, ornamentals, and field crops; also used in animal confinement areas and to kill ticks, spiders, and flies; [EXTOXNET]

Comments

Classified as "highly toxic," methomyl may be used only by certified applicators. The reentry interval is 1 to 7 days depending on the crop. [EXTOXNET] Allergic contact dermatitis reported in greenhouse workers; [Kanerva, p. 1812] TLV Basis: Acetylcholinesterase inhibition; male reproductive damage; Hematologic effect; [ACGIH] See "CARBAMATE INSECTICIDES."

Reference Link #1

Biomedical References

Acetylcholinesterase activity in red blood cells = 70% of individual's baseline; Butylcholinesterase activity in serum or plasma = 60% of individual's baseline; Sample at end of shift; [TLVs and BEIs]

Yes

0.2 mg/m3, inhalable fraction and vapor

5.4E-06 mm Hg

Explanatory Notes

VP from HSDB;

Reference Link #2

Yes

Yes

Not Classifiable

Other Poison

Carbamate

Diseases

Occupational diseases associated with exposure to this agent:

• Contact dermatitis, allergic
• Organophosphates & carbamates, acute poisoning

Processes

Industrial Processes with risk of exposure:

• Farming (Pesticides)