You can kill spotted lanternflies mechanically, by swatting or crushing them. ... It is legal to use them on ornamentals trees, including Ailanthus altissima, to try to kill insects, including the spotted lanternfly. You can check at your garden center to see what they offer.

Does bug spray kill lanternflies?

Bust out the bug spray

Many common spray insecticides that kill bugs on contact have proven effective against spotted lanternflies, according to the NJDA. ... One way of dealing with spotted lanternfly eggs is by using horticultural oils commonly sold at garden stores, which do not typically affect other species.

What kills a spotted lanternfly?

Spray Weeds with vinegar: IngraWorld says that spotted lanternflies can be found on weeds. When this happens, a vinegar solution sprayed directly on the insect and the weed will kill both of them.