Whitefly on kale
We have an organic garden and love kale. The past two summers we have had a struggle with whiteflies on the kale. Last summer, I resorted to spraying the kale with a garden hose every day. It was quite a time-consuming chore, but did keep the whitefly population down. Someone mentioned “Dr. Bronner’s soap.” Is this something that would be good to put on leafy greens that one eats and would it be effective? Also, do you have any suggestions as to how to eliminate the whitefly problem? Thank you!
If you can, rotate the kale to a different part of your garden. Put floating row cover on as soon as the plants go out. Here is our website on white flies and prevention
If need be, you can spray the underside of the foliage with insecticidal soap labeled for vegetables. Follow label directions and do not spray in high temperatures. Wash foliage before eating. We do not have research on the above product.