Refuse workers in Doncaster have voted to hold a series of one-day strikes over Christmas and New Year.
The Unite union claims it is as a result of "constant bullying and harassment of the workforce" by the council's contractor, Suez.
Members are due to strike on 15 December, Christmas Eve, New Year's Eve and 4 January if the dispute is not resolved, according to Unite.
The union said the dispute had worsened after lead representative Damien Nota was dismissed "on trumped up charges" relating to bosses at the firm "furtively trawling historic CCTV footage to build disciplinary cases against members".
Regional officer Shane Sweeting said: "Unite believes with the intervention of the council, the reinstatement of Mr Nota and cast-iron commitments the bullying culture will immediately end, this dispute could still be resolved."
A spokesperson for Suez said: "We have been in constant discussions with employees and union representatives to avoid strike action and are disappointed with the result of the ballot."
Doncaster Council declined to comment.