An underground market in illegal pesticides used to combat roaches, rats and other vermin is thriving in some of New York City’s immigrant neighborhoods.
As The New York Times reports, the black market trade was spotlighted last week by the arrests of 12 people on federal and state misdemeanor charges related to selling illicit pesticides. Authorities said one of the chemicals sold, a rat poison known as brodifacoum, is 61 times stronger than the government allows.
According to another Times story, officials say brodifacoum is so dangerous that it can be used legally in urban areas only by licensed professionals wearing protective gear. Federal regulators have moved to restrict its use further, partly because it is so powerful that a small child could die from ingesting it.
The five-month law enforcement investigation leading to the arrests, centered in New York City’s Chinatown, began after a woman mistook a vial of the brodifacoum for medicine. According to court papers, she ended up losing two-thirds of her blood volume after consuming it.
The product is sold in boxes covered with Chinese characters and an awkward English translation, “The Cat Be Unemployed.”
City health officials said that since 2005 they had received about 100 reports of poisonings from three better known illegal pest killers widely used in immigrant neighborhoods: Tres Pasitos, Tempo and Chinese Chalk. There have been no known fatalities, but about 40 of the victims needed treatment at medical centers.
For some immigrants, familiarity with the products from their homelands, along with the lower prices and language barriers, are believed to be the factors fostering the underground trade. The demand has remained strong despite crackdown efforts by government officials.
The popularity is based on “word of mouth,” said the owner of one pest control company.
STUART SILVERSTEIN


