Yang Yao-Jun, Wang Shu-Fang, Gong Jia-Wen, Liu Chao, Mu Chi, Qin Hong
College of Chemistry and Bioscience, Leshan Normal University, Leshan, Sichuan, China.
Ying Yong Sheng Tai Xue Bao. 2009 Aug;20(8):1980-5.
In August of 2007 and 2008, a field investigation was made to study the relationships among Cyrtotrachelus buqueti larval density and wormhole number and bamboo shoot damage degree in Sichuan Province. The three pairs of variables, i. e., C. buqueti larval density and wormhole number, C. buqueti larval density and bamboo shoot damage degree, and C. buqueti wormhole number and bamboo shoot damage degree, fitted cubic equations well, with the correlation coefficients at P = 0.001. Based on these mathematical models, the forecast tables for C. buqueti larval density and bamboo shoot damage degree were established, and the thresholds of C. buqueti larval density and wormhole number were 0.13 and 0.40 individual per bamboo, respectively.
2007年8月和2008年8月，在四川省进行了一项实地调查，以研究笋横锥大象幼虫密度、虫洞数量与竹笋受害程度之间的关系。笋横锥大象幼虫密度与虫洞数量、笋横锥大象幼虫密度与竹笋受害程度、笋横锥大象虫洞数量与竹笋受害程度这三对变量均能很好地拟合三次方程，相关系数P = 0.001。基于这些数学模型，建立了笋横锥大象幼虫密度和竹笋受害程度的预测表，笋横锥大象幼虫密度和虫洞数量的阈值分别为每株竹子0.13头和0.40个。
