Officials reached a similar conclusion in Easton, Pa., where ginkgo trees were removed last year after complaints about seed shells raining on cars and pedestrians.

• 宾州的伊斯顿市也做出类似决定，他们去年将市内的银杏树砍除，因为民众抱怨，果壳就像下雨一样，落在车上和行人头上。