Jose from Miramar, Fl writes
The tree is about 12 inches in diameter. How would your product be applied. Sprayed or directly to the soil for root treatment? Thanks
Southern AG Liquid Copper Fungicide is labeled to control Anthracnose on mangos which can cause black spots. You should use 4 tsp per gallon of water and apply weekly from the time the panicles are 2 inches in length until all fruits are set, then monthly therafter until August. This article from your FL Extension has more information about this and other common mango diseases.
Answer last updated on: 07/30/2018