As for why there are no mosquitoes in Peach Forest…
"I've also planted quite a few Ai Cao around the edges of the Peach Forest, fitting them in wherever there's room. This stuff is just like wild grass, it doesn't need any care, just don't cut it down," Song Tan explained.
Ai Cao can repel mosquitoes, but it has to be dried and burnt to create the smoke that works. However, mosquitoes are one thing Song Tan just can't tolerate, so she did not skimp on feeding the Ai Cao on the mountain with Spiritual Energy.
Before the Dragon Boat Festival, the family dried quite a lot. Now, every evening, they light up a small bundle, and although it's just a small bundle, it's incredibly effective!
Those that have been stimulated by Spiritual Energy on the mountain can be smelled from afar, wafting a unique and fragrant scent. Even when fresh, they are outstanding at repelling mosquitoes, truly defying science.