看来是下面有可口的饭菜。似乎有那种白色的虫子(white grubs),有点难办。
Some nocturnal animals like skunks, opossum, etc, love to feed on grubs and will cause significant damage to lawns as they rip up the turf to get at the grubs. Moles, which feed on soil inhabitants such as earthworms and grubs, may be attracted to areas with high grub populations.
http://www.lawnpro-kc.com/lp/grub.html
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