Billy from Dothan, Al.36301 writes
Southern AG Liquid Copper Fungicide is not specifically labeled for Crape Myrtles. Bonide Liquid Copper Fungicide is labeled for Powdery Mildew on Crape Myrtles. Treatments should be done once every 7-10 days at the mix rate of 1.08 fl. oz per gallon of water Please review the product label for more information.
Answer last updated on: 06/09/2021