As a result of the trials, in Act Four, Cheever first mentions that "There be so many cows wanderin' the highroads, now their masters are in the jails [...]." In other words, so many people are in jail, have been accused and/or convicted or have confessed, that there is no one to care for their farms or their animals. The cows, in need of milking, would be especially desperate for human assistance.
Worse, Mr. Hale (after he returns to Salem) tells Danforth that "there are orphans wandering from house to house; abandoned cattle bellow on the highroads, the stink of rotting crops hangs everywhere [...]." It's not only cows and crops that are abandoned, but the children of the accused have nowhere to go, no one to care for them. It is really a very tragic picture that these images paint: animals wandering the roads with no one to care for them, food going to waste on the stalks and vines, frightened children with no one to feed or dress them. The trials don't just affect those accused and convicted; in the play, at least, the trials are making orphans out of a generation of children.