New York tried birth control, poisons, traps and other methods to solve its pest problems. Researchers say that the city’s focus should be on its citizens.

New York has tried poison, traps, and birth control to fix its pest problem. Rat researchers say the city should focus on its people instead.

Earlier this year, New York City Mayor Eric Adams appointed the city’s first Rat Czar to oversee efforts to rid the Big Apple of a prolific pest problem that’s led to viral memes like Pizza Rat. Experts say that people are the real culprits behind this persistent rodent infestation.

In her role as director of rodent mitigation, Kathleen Corradi — a former school teacher credited with creating the city’s Zero Waste Schools initiative while she worked at the Department of Education — has been given a Sisyphean task: To reduce, by whatever means necessary, New York’s rat population.

Corradi was appointed after residents reported almost 3. 2 million rat sightings to the city’s 311 service request line last year, Insider reported. The rats are so iconic to the city that tourists go on walking tours just to catch a glimpse of them.

” Rats are an indicator of systemic problems, such as sanitation, health and housing. “As the first director of rodent mitigation, I’m excited to bring a science- and systems-based approach to fight rats. New York may be famous for the Pizza Rat, but rats, and the conditions that help them thrive will no longer be tolerated — no more dirty curbs, unmanaged spaces, or brazen burrowing.”

Representatives for the New York Mayor’s Office and Department of Sanitation did not immediately respond to Insider’s requests for comment.

The City has traditionally focused its efforts on pest control, using spring traps that are dangerous and poisonous to kill the rats. According to an article published in The New York Times on Sunday by Jason Munshi South, professor of biology from Fordham University, scientists even developed a birth control for rats to be used as baits. However, it was too costly and ineffective for real-world usage.

But despite years of trying to shoo away or kill the rodents, which can carry and spread parasites and disease, rats in the city are still frequently seen on the subway, in trash cans, and simply walking down the street in search of their next meal.

Rats aren’t the real enemy, Munshi-South and other experts, including Michael Parsons, an urban rat researcher and visiting scholar at Fordham University, agree.

Parsons previously told Insider the “real city rats” are “the men and women of bureaucracy and their two-and-a-half centuries of bad practice.”

“Ms. Corradi needs to change to science-supported steps rather than unproven, ‘gimmicky’ approaches,” Parsons said, giving examples like relying on unproven methods like composting to reduce the presence of rats.

Instead, city officials should study rodent biology, conduct cleaning during the day while the rats are less active, and develop a more efficient waste disposal system citywide, he said.

Munshi-South also argues that people are the problem — more than rats, which are just seeking food out of survival — could ever be.

“For rats to go away, everyone in the city — plus our restaurants, schools, grocers — must be willing to address the fundamental issue of food waste,” Munshi-South wrote for NYT. “New Yorkers waste roughly 6. 5 million pounds every day, which amounts to as much as a pound per person. To really have fewer rats, New York norms of takeout and eating outside would have to change.”

With a citywide population of over 8 million people, according to 2022 Census records, that challenge may prove more difficult than Corradi bargained for when she accepted the $155,000-per-year position.

She may have been prepared to deal with the rats, but Parsons said the key to her success will be to “understand that rat control begins by changing people’s habits, hygiene, and expectations.”

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