Commercial Fixed Wing
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 8
Distraction; Situational Awareness
ATC Issue All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Airspace Structure; Human Factors; Environment - Non Weather Related
My second report regarding aircraft from the Palm Springs area performing erratic maneuvers in the face of IFR arrivals.  Aircraft Y departed Palm Springs and terminated services outside of the PSP Delta. They proceeded to fly just north of UDD and start performing aerobatic maneuvers between 050 and 060. This aircraft climbed right in front of Aircraft X; who was cleared for the RNAV visual 31L approach.  Traffic alert was issued to Aircraft X and while the pilot did not say 'near midair'; they did say 'he's right in front of us!' and the altitudes were the same.The pilot for Aircraft X said they had to respond to two RAs for that one aircraft.The pilot of Aircraft Y may have also been in violation of FAR Sec. 91.303 which prohibits aerobatic flight within 4 miles of a federal airway (V137) and over an area of congested population.I am requesting; again; for the PSP airspace to have a Charlie or Bravo airspace.  My colleagues and I deal with dangerous situations every day that could easily be avoided by having non-voluntary protected airspace.  This is the second event in one day where PSP Tower has terminated a VFR aircraft who ultimately got much too close to an IFR arrival. A Class C/B airspace and a requirement for Tower to hand off departures to approach; would allow the radar Controller to determine if a dangerous situation is imminent.As of now; the only controlled airspace in the Palm Springs valley is the Tower's Class D. Class E airspace exists around TRM; but only prohibits flight for poor weather. This airspace is a free-for-all with half of the aircraft talking to ATC and the other half are not; and just blasting through everyone else. This needs to change.Also; the local pilots should know better than to be flying in these congested areas doing aerobatics.  The safety culture of these pilots is questionable and should be discussed.
SCT TRACON Controller reported re-occurring airborne conflicts between VFR aircraft executing aerobatic maneuvers and IFR arrivals into PSP.  Reporter advised they deal with these types of situations every day; which could be easily avoided by having non-voluntary protected airspace.