Harriers started with a 4-4-2 formation with Stamps making his first start since November at left-back and Bennett playing up front.Left-back Scott Stamps was booked inside seven minutes
Stamps did not waste any time getting into the action as he was booked inside seven minutes after hacking down C Edwards near the halfway line.
Soon after Wrexham's 31-goal striker Morrell took advantage of a poor Smith pass and ran on before laying the ball back for Green.
But the former Bolton midfielder tried an audacious chip when presented with a good chance from 125 yards and the ball cleared the bar with Brock back-pedalling.
The visitors forced five corners in the first quarter of an hour without seriously testing keeper Brock.
Referee Stretton, who sent off three harriers players in a controversial game at Bristol Rovers last season, cautioned his second Kidderminster man on 17 minutes after Williams kicked the ball away following a foul.
There was chaos on 22 minutes as the players had to leave the field for their own safety after scaffolding on the side of the ground being redeveloped fell over, landing close to the touchline.
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