Lady bugs are out of hibernation - not dropped from helicopters and they are not used to fight off bark beetles.
From Facebook this morning:
Chuck Carroll Where did you hear they eradicate bark beetles? This has never been discussed or mentioned in any Fire Safe Council or Fire agency (state, county or federal) as a means of handling bark beetles, they do not kill bark beetles. Lady bugs are not dropped by plane, these are a natural occurrence. Years ago this was discussed, but not sure if acted upon.