Negative correlation between tannin content and larvae density of X. rusticus was obvious.

单宁含量与青杨脊虎天牛虫口密度之间存在比较明显的负相关性。

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Negative correlation between tannin content and larvae density of X. rusticus was obvious.

单宁含量与青杨脊虎天牛虫口密度之间存在比较明显的负相关性。

youdao