Question From: N. Sides - Royal Oak, Michigan, United States
Q: I have a viburnum shrub for about 10 years and for the past 3-4 years a small caterpillar has been eating the leaves and subsequently die in the spring, so that it doesn't bloom. I've tried using the Safer Brand Insect Killing Soap with Seaweed Extract, but it doesn't kill these caterpillars. Any ideas that I can use that would be a non-chemical spray? I would appreciate any advice you could give me.
I use AzaMax on my viburnum. It is OMRI listed and certified for use on Organic edibles. You can get it at a Hydro store or buy it online. Be sure to spray the undersides of the leaves. Best And Happy Yardening, Nancy