This ritual is done with a lemon and some salt.
First What you do is you cut the lemon in half, then sprinkle the salt over it while chanting:
"Negative energies this lemon capture, cleanse my house for joyous rapture"
Then let the lemon sit on wherever you did the ritual until it dries out. If it molds, then you're dealing with massive negative energies. Repeat until you get a lemon that dries out.