How to prevent black, dry, spreading areas on my Anthurium plant

Question

My new anthurium plant is experiencing black, dry areas on the leaves. What is causing this, and how can I prevent it? The surface of the soil is damp. The plant is in a high light area, but not in direct sun.

Answer 1

This is, most likely, a fungal issue. The most common cause is over-watering. I have a method I use That works very well.

My recipe is as follows: First, you will want to prime your soil with wettable sulfur (for fungus control) and dolomitic lime. (for balancing pH, supplementing magnesium, and calcium.) Then, you will mix the following in a spray bottle with warm water, and a spoonful of coconut oil- Neem oil, rosemary oil, garlic extract, thyme oil, cinnamon extract, and for heavier insect infestations, Clove oil.
Spray as often as needed.