Hi, Tracy: You can find all kinds of recipes for homemade whitefly sprays (see below, for example), but all involve some sort of soap to basically dry out the flies. Try slowly stirring together a mixture of 3 quarts water, 1 tablespoon dishwashing soap (not detergent, not antibacterial), and 1 teaspoon white distilled vinegar, and spraying. If this doesn't seem to have had any effect after 3 days, repeat, but with 2 quarts of water, not 3. Good luck!
Hi, Tracy: You can find all kinds of recipes for homemade whitefly sprays (see below, for example), but all involve some sort of soap to basically dry out the flies. Try slowly stirring together a mixture of 3 quarts water, 1 tablespoon dishwashing soap (not detergent, not antibacterial), and 1 teaspoon white distilled vinegar, and spraying. If this doesn't seem to have had any effect after 3 days, repeat, but with 2 quarts of water, not 3. Good luck!