在广东的马尾松林中，进行了马尾松毛虫有幼虫株率与虫口密度关系的调查。结果表明，这两个因子的关系密切，由此验证出由有幼虫株率估测幼虫密度的简易调查方法适合广东推广应用。 In Masson pine forest in Guangdong, the relationship between larvae rate and population density of Dendrolimus punctatus was studied. The results showed that the two factors are closely related to verify the larvae rate of larvae density by a simple survey of methods suitable for the promotion and application of Guangdong.