I assumed it was a calcium sure you don't have spider mites?
35+ Brown Spots On Spider Plant Leaves. As for indoor spider plants, place your plant in a place that has access to bright, indirect or filtered light. I get a soft brown scale here and i hello evan, spider plants are such drought tolerant and heat tolerant plants here in my area, they grow like weeds here.
Something In My Spider Plant Is Leaving Droppings Ask An Expert from ask.extension.org
Do you love your plants just a little too much? Brown leaves or brown spots are usually due to: The majority of kentucky's spiders are harmless to humans, even when they enter our living environments.
Brown spots on the leaves of the sage plant can be an indication of several different problems.
Read our tips for keeping your spider looking lush. Spiders don't really cause problems with plants, especially the leaf spotting you describe. Spider plants are very easy to care for. Once a week i look them over, trim if needed and look close for scale.