I have bagworms on my blue spruce, and can’t use the horticultural oils on blue spruce. What else should I use?
Good Point, and glad you read the label! Oils cannot be used on Blue Spruce, as they will turn the blue to green. (This can be a great trick to play on the neighbor. No-no, just kidding! Don’t do it!) Captain Jacks Deadbug Brew and Bt are my first choices – all natural controls! (Sevin, Eight, and a bunch more also work, as well as handpicking if you have the time – helps to clear the mind!)