spinoff - getting rid of small bream?

There's a small pond down the road from me that the landowner has no interest in (its the only reason every inch of the property isn't replanted pine). Got permission to fish it, but obviously I'm not gonna sink much money into it.

The problem is that it's completely overrun with 1-3" bream and goggle eye. In three weeks of bass fishing not even a yearling has been caught or seen in the shallow part. I also assume there aren't any cats. Pond used to hold bass and keeper bream, but dried up about 10 years ago, and to my knowledge hasn't really been fished since. It's about a half acre, maybe 7ft deep in the middle, and a ballpark average of 4ft. No matter where you throw, a cricket doesn't last 30 seconds. There are thousands of small bream but nothing over 4". One decent sized goggle eye was caught this weekend.

So my question is, without shelling out coin on someone else's property, what's the best way to get the bream numbers down? The plan is a combination of cast net, throwing caught bass in, and maybe a flathead or two. Anything I'm missing?