If you have ants climbing up and down trees and shrubs in your landscape, and your trees and shrubs appear to have a sticky substance covering their leaves, you'll want to watch UC IPM's newest YouTube video, “Using a Sticky Barrier to Prevent Ants on Trees and Shrubs”.

The short video explains that the sticky substance on your leaves is honeydew, a sugary substance excreted by aphids, psyllids and a few other plant pests. Ants harvest this...