Some of the leaves have yellow spots and sticky saliva underneath the leaves. Please let me know if I need to treat for disease or pests. Thank you
Yes this is indicative of an insect problem, usually. I have a full on pest control system I use which is safe, and can be used at anytime. This method will focus on soil issues, and insect problems. you may LEAVE OUT the sulfur treatment, if there are no signs of infection of this sort, but the dolomitic lime is useful regardless. It will help recondition your soil. The spray is most effective with all ingredients, but it isn't completely necessary to have everything.
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.
Here is an article for more information on this plant: https://www.gardeningknowhow.com/houseplants/schefflera/schefflera-plant-care.htm