Scale- Dealing with an unwanted visitor July 26, 2020 15:57
Typically, the first thing you might notice about a plant or tree infested with scale will be that it's dripping sticky sap. I have a very large schefflera that - last winter- had a very large infestation of scale and to my embarrasment, I didn't notice anything wrong until one day when I walked past it and sort of stuck to the floor. Dripping sap from any plant usually means bugs are a problem and sure enough, once I put my glasses on I could see many small brown bumps on both the upper and underside of leaves. Not sure if its scale? Just see if it easily scrapes off with a fingernail ( not really as gross as it sounds).
I know that some people will use pesticides to take out scale, but you don't really have to and they are often not every effective, anyway. Just carefully inspect your tree and scrape off any scale that you see. You might need to do it a few times to get all of them and you can wash the sap off with water. If you're squeamish, you can use a Qtip to scrape them off.