Why does your Brassica oleracea Red Kale have white powder? Diagnose the cause and fix it with our step-by-step guide.
Pet FriendlyThis fungal disease is caused by organisms like Podosphaera tuberosae which thrive in high humidity and moderate temperatures. It manifests as distinct white, flour-like patches on the surface of the red kale leaves, eventually causing them to yellow and wilt.
Infestations of whitefly larvae or adults can leave behind white, waxy residue or small white specks on the undersides of the kale leaves. These insects suck sap from the plant, often accompanied by a sticky substance called honeydew.
Mealybugs are small, soft-bodied insects that secrete a white, cottony wax to protect themselves. In Red Kale, they tend to congregate in the crevices of the leaf stalks and underneath the foliage.
Your plant might also be experiencing one of these issues:
English
Italiano
