Does the jury need to be instructed that there are multiple conspiracies?

The multiple conspiracy instruction given in this case was adequate. In United States v. Loya, 807 F.2d 1483, 1492-93 (9th Cir.1987), we explained that the substantially identical instruction in that case "adequately informed the jury that it could not find a defendant guilty of an uncharged conspiracy even if proved. The failure to instruct further on multiple conspiracies, as requested by the appellants, did not result in prejudicial error." Id. So, too, is the case here.