It's important to keep things fact based and be very specific about the behavior you want corrected. I would get things in writing as well so that you have email to back you up in case things go south.

The situation you are describing is, unfortunately, not a male/female issue. It is a pattern for a certain type of low performer.

p.s., You might think about why you use the word "girl" as opposed to "woman" BTW. That's a touchy point for a lot of women, as it diminishes their seniority. It may or may not be relevant to the conversations you describe. This is not intended as criticism; I know nothing of the situation beyond what you wrote.