Developers of the Parkgate site, Shirley Advance, reported super-glue had been poured into locks, fencing taken down and digger windows smashed after planning permission was granted to remove the oaks.
It is believed the attacks may have been carried out by aggrieved residents, after frustrations boiled over at the loss of the trees.
Shirley resident Ann Turner however condemned the attack: “I’m very sad to hear that - it doesn’t look good for us. It’s disgusting. But I can’t believe that any genuine campaigners involved would do that.
“Most of us who opposed it are senior citizens, none of us would go to those sort of lengths. It’s just vandalism.”
A source at Shirley Advance said the attacks were some of the worst vandalism of their equipment they had ever seen.
Shirley West councillor Hannah Tildesley (Con) said: “I can understand why people are frustrated but I don’t think extreme measures like that are acceptable under any circumstances.
“The contractors are there as a result of a decision made by the council. They shouldn’t have to suffer for doing their job. This scheme is going to go ahead now whatever people think of it, nothing can stop it.”
Robert Birch of Parkgate developer, Shirley Advance, added: “Vandals broke into the secure site compound on more than one occasion and caused damage to machinery by breaking windows, super-gluing locks and inflicting graffiti.
“One night a 50m length of secure fencing erected around the compound was dismantled which would have taken several well-equipped people about an hour.”