A Wooster man admitted to selling drugs in the city earlier this year from undercover informants.

Donald Hoyie Robinson, 44, of 331 S. Walnut St., pleaded guilty to trafficking in heroin, a fourth-degree felony, in Wayne County Common Pleas Court.

Sentencing is set for Oct. 1 in front of Judge Corey Spitler.

Robinson agreed to a plea deal, which dropped two other trafficking charges — for cocaine and fentanyl — against him.

He was indicted in May with codefendant Melissa Rouse, 41, of 531 Spink St., Wooster, and both were arrested as a part of Operation Southern Migration, a months-long investigation conducted by the Medway Drug Enforcement Agency.

While the nine-count indictment has Rouse selling as far back as November, Robinson’s charges stem from drug deals he and Rouse made with undercover Medway informants March 3 in the vicinity of a school. As part of the plea deal, the state agreed to drop the school specification though.

The three counts against Robinson stem from one drug deal, which his attorney, Norman “Bing” Miller, said he acknowledged was heroin. But the drug later tested positive in a lab as containing fentanyl and cocaine.

Rouse is scheduled to change her plea Sept. 17, also in front of Spitler.