Yea you can carefully pick off the male parts. But if you break it then you are pretty screwed. It's advised to spray the plants with water first (if your buds aren't too big, careful with the mold!!!), because the water will kill the pollen. Some tweezers would be the best, try and grab those little balls by their stems.

Some strains are more stable than others, and some will hermie even without stress... One of the drawbacks of (some) bagseed and even some of the expensive seeds from well known companies.