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１９９８年对苎麻天牛幼虫在自然条件下危害苎麻产量的构成因素进行通径分析，结果表明，百蔸虫量对产量损失直接作用最大（Ｐｘ１→ｙ＝０．７８２６）；百蔸虫量主要通过株高及鲜皮厚间接影响产量，而通过茎粗、有效株及出麻率对产量损失率有微弱的负效应。
In 1998, the path analysis was conducted on the components that affect the yield of ramie under natural conditions. The results showed that the amount of the one hundred insects had the most direct effect on the yield loss (Px1 → y = 0.7826) The yield was indirectly affected by plant height and fresh skin thickness, while the yield loss rate had a weak negative effect through stem diameter, effective strain and hemp yield.