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本文运用DYAR氏法则和头宽生长曲线,推算出梨瘿华蛾幼虫分五个龄期,推算结果经回归分析,龄期与幼虫头宽的测量值呈极显著的指数曲线关系。
In this paper, DYAR’s law and head-width growth curve were used to calculate the larvae of M. litura at five different stages. The regression results were analyzed by regression analysis. The age and larval head-width measurements showed a very significant exponential curve.