2种药剂防治麦叶蜂生测的SVM,TDM模型分析

SVM and TDM Model Analysis of Bioassay on Dolerus tritici Control with Two Pesticides

支持向量机(SVM)模型与时间-剂量-死亡率(TDM)模型都是兼顾时间效应与剂量效应的毒理学生测数据处理方法,而吡虫啉和敌百虫则是有着不同杀虫机理的2种化学杀虫剂。对这2种药剂应用浸渍法进行室内防治麦叶蜂3龄幼虫的毒力测定,并利用SVM模型和TDM模型对其生测数据进行了分析。SVM回归分析结果表明,20 min敌百虫的LD50为20.995 mg/kg,吡虫啉为102.886 mg/kg;SVM模型的拟合效果优于TDM模型,且MSE(均方误差)均较小。所以,SVM模型有很好的鲁棒性,在击倒活性化学杀虫剂生测数据处理中所得的结果准确性较高。

Both support vector machine（SVM）model and time-dose-mortality（TDM）model are technologies of toxicological data analysis that take into account both time and dosage effects, furthermore dipterex and imidacloprid are two kinds of chemical insecticides of different mechanisms. The indoor virulence bioassay of these pesticides was carried out on Dolerus tritici control with maceration method, and the data were processed by SVM and TDM model. The result showed that the LD50 values of dipterex and imidacloprid in 20 minutes were 20.995 mg/kg and 102.886 mg/kg respectively, while the fit effects of two SVM models were better than two TDM models＇ because the MSE values of two SVM models were less than the values of two TDM models. Generally SVM model had a better Modeling Feasibility Robustness, so the veracity of this model was perfect in the bioassay data analysis of insecticides which had the knock-down effect.