Every year across New England, gypsy moths destroy and kill apple, speckled alder, basswood, gray and river birch, hawthorn oak, poplar, and willow trees. They also eat, although it’s less preferred, black, yellow, and paper birch, cherry, cottonwood, elm, black gum, hickory, hornbeam, larch, maple and sassafras trees as well. 1 And coming into contact with their little hairs will give you a nasty rash. 2 These little guys are a BIG nuisance. Last year, 350 acres were eaten by the gypsy moth.

So, this year a company based in Woburn, MA will be injecting a pesticide directly into the trees through drilled holes, a sort of “tree vaccine,” if you will. While injecting the trees has the potential to cause long-term damage, another pressing issue is that we have no idea:

  • how these actions will affect the surrounding environment (or how they have in the past) 3
  • how these actions will ultimately affect the tree’s immune system 4

In fact, I’ve done repeated searches about long-term safety studies for “tree vaccines” and found nothing.


The good news is there are safer and more environmentally friendly ways to protect your trees- and all without harming your yard and everything that lives there. Check out the video below.

The total amount of insecticide that’s injected into each tree’s vascular tissue is extremely small and it works fast. Within days, feeding stops.5

But again, there are friendlier ways. See below.


Sources and References

  1. US Dept of Ag.
  2. Fox 25 Boston, June 9, 2017.
  3. Emerald Ashborer.Info.
  4. Nature, November 2006.
  5. Fox 25 Boston, June 9, 2017.