BushDoctor
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on October 4, 2022
They are very susceptible to a wide range of insecticides. Myself, I would use Bt. (Bacillus thuringiensis) This naturally occurring bacterium is harmless to you, but will devastate the insect population that is feeding on your tree.
https://www.gardeningknowhow.com/plant-problems/pests/spotted-lanternfly-control.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm
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