The Chicago Transit Authority plans to test new technology that would make female and male rats infertile, the Chicago Tribune reported. A pilot program is expected to start in the spring, though the CTA is still working out details including negotiating the price with the bait maker and deciding where the traps will be placed, CTA spokeswoman Tammy Chase said.
The new bait the CTA plans to test in the spring is called ContraPest, made by Arizona company SenesTech, which tested the traps in the New York subway last year. The bait, which comes in semi-solid or liquid form, is placed in a small box for rats to eat so they have a more difficult time reproducing.
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Source: Chicago Tribune