marijuana pollen can survive for monthes mate , what u need to do is to move the low rider to a different place . if i am not mistaken lo rider will flower in 18/6 anyway ( actually i believe this to be the prefered way as 12/12 makes it finish to soon ) as soon as ur hermie finishes u need to brush , vaccum and then wash the room with a strong bleach solution before u put any other plants into flowering . also where u keep u low rider males u need to do the same . if u have ur low rider on 12 /12 i think u need to change the light cycle ( thats if it is on 12/12).
I hope this keeps