In line 44 what does Lady Macbeth ask her husband? What does he recommend to her, and what is he planning?

Lady Macbeth wants to know what Macbeth has planned for Banquo. He tells her not to know too much until the deed is done. Macbeth isn't telling her that he plans to kill Banquo.

Be innocent of the knowledge, dearest chuck,. Till thou applaud the deed. Come, seeling night,.