Tammy from Emmett, Idaho writes
I have an old mock maple that's about 15' around the trunk & millions of Boxelder bugs!! I was told the best stuff to get rid of the box elders is Dominion 2L. I try to remove all the seed Whirlygigs but they are still everywhere. What time of year is best for the drench method for systemic on this giant tree? And is it good to surface spray and also spray when uncovering nests?
The Dominion 2L is not labeled to treat for Boxelder bugs and we would not recommend using it for this pest. We have put together an Overwintering kit that is just for boxelder bugs. This kit includes Temprid FX Insecticide, Eco PCO dust and a hand duster for easy application. You should treat once a month through November for best results. Here is our guide on the Boxelder Bug for more useful information.
Answer last updated on: 08/28/2023