Insect attack

See Rodent attack description for column information. Because insect attack can only be observed on living plants, we divided the actual number of insect attack events by proportion of seedlings surviving.请参阅啮齿动物侵害（Rodent attack）说明以获取列信息。由于虫害（Insect attack）仅能在活体植株上被观测到，因此我们将实际虫害发生次数除以存活幼苗占比。