I'm trying to make a particlesystem appear upon a collision and make it disappear after three seconds. Can I accomplish this using coroutines? The code I have so far (which doesn't work) is: using UnityEngine; using System.Collections;

public class NewBehaviourScript : MonoBehaviour {
public ParticleSystem ps;
private float amt = 3f;

// Use this for initialization
void Start () {
ps.renderer.enabled = false;
}

// Update is called once per frame
void Update () {

}

void OnTriggerEnter (Collider other) {
    Destroy(this.gameObject);
    ps.transform.position= new        Vector3(this.transform.position.x,this.transform.position.y, this.transform.position.z);
    ps.renderer.enabled = true;
    StartCoroutine(pauser());


}

IEnumerator pauser()
{
    yield return new WaitForSeconds(amt);  
    Destroy(ps.gameObject);
}
}