Would boric acid powder work?

[Guest guest]

I have a pesticide sprayer made to spray pesticide powders in small areas/cracks and crevices. I was thinking of putting boric acid in it and spraying along basement wall bottom where I have visible mold growing. Wall is slightly moist so I think something powdery would stick better than a solution. Would that kill the mold on bottom surface of wall there at baseboard, where it is, until I can get outside this summer and excavate to repair foundation from outside? (tree roots from large maple tree have damaged bottom of foundation there)

Thanks for any feedback.

Barb__________________________________________________