My anthurium is quite healthy after 2 months but holes are appearing in the leaves. I mist it every day and water it with rain water at least once a week?
Care of Anthuriums
Certified GKH Gardening Expert
This would indicate a pest problem. You can use need oil to control this, as long as you don't apply in direct sunlight. Here is a collection of articles among which will be several on how to make your own pest control: https://www.gardeningknowhow.com/special/organic/