Cure Leaf Rot. Root rot may also be caused by a lack of drainage in the pot or a combination of less than ideal or no drainage and overwatering. Plant food specially formulated for Fiddle Leaf Figs formulated to promote healthy root systems and new growth.
Cut off the dying roots on partially healthy plants. In replanting it later you can either return it to the same spot after improving the ground with compost or else transplant it to a better spot. In the garden the plants leaf spot treatment depends on preference.
You can treat minor cases of root rot by first digging up the plant washing the roots and removing with a sterilized cutting tool the diseased parts.
In replanting it later you can either return it to the same spot after improving the ground with compost or else transplant it to a better spot. There are a number of different Phytophthora species all causing very similar symptoms. Most contain sulfur or copper octanate. This prevents the spores from spreading to other nearby leaves and plants.

