Dry spraying method: the medicine bottle is inserted into the tree body through drilling, and the medicine is injected into the tree body in this way to achieve the effect of inhibiting poplar flying. This is one of the most promising methods at present.
Spraying chemicals and plant growth regulators on the tree crown can inhibit the production of catkins, but the problem is that it will pollute the environment and cost more.
Grafting the crown and replacing the trunk with tall male plants can solve the problem once and for all, but it is troublesome and time-consuming to operate.
We must cut it down and change the tree species.
—— Refer to the paper "Experiment of Inhibition of Poplar Flocculation by Dry Injection"