Your plant seems to have a fungal disease. Common issues for okra plants include mildew, leaf hoppers, whiteflies and aphids. The sap-sucking pests can spread incurable viral diseases.
Are okra and cotton plants related? Yes, they are, as a member of the Malvaceae or Mallow family, okra is related to cotton, cocoa, and hibiscus plants. Other related plants are the marshmallow, ...