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Linking life table and consumption rate of the fall armyworm, Spodoptera frugiperda reared on different maize cultivars

文献类型： 外文期刊

作者： Lu, Junjiao 1 ; Zhuang, Mengmeng 1 ; Long, Jiamin 1 ; Jiang, Xiaoling 1 ; Zhang, Yunxi 1 ; Ren, Meifeng 1 ; Li, Daqi 1 ; Zhang, Biao 1 ; Wu, Yupeng 2 ; Li, Guoping 3 ; Chi, Hsin 4 ;

作者机构： 1.Shanxi Agr Univ, Coll Plant Protect, Shanxi Key Lab Integrated Pest Management Agr, Taiyuan 030031, Peoples R China

2.Taiyuan Univ Sci & Technol, Coll Environm & Safety, Taiyuan 030024, Peoples R China

3.Henan Acad Agr Sci, Inst Plant Protect, Zhengzhou 450002, Peoples R China

4.Fujian Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Fujian Prov Key Lab Qual & Safety Agr Prod, Fuzhou 350003, Peoples R China

5.Fujian Agr & Forestry Univ, Coll Plant Protect, Fuzhou 350002, Peoples R China

6.Shandong Agr Univ, Coll Plant Protect, Tai An 271018, Shandong, Peoples R China

关键词： age-stage; two-sex life table; leaf consumption rate; computer simulation; economic threshold; fall armyworm

期刊名称：ENTOMOLOGIA GENERALIS （ 影响因子：5.6； 五年影响因子：5.0 ）

ISSN： 0171-8177

年卷期： 2024 年

页码：

收录情况： SCI

摘要： The life table and leaf consumption data of the fall armyworm (FAW) (Spodoptera frugiperda) reared on three cultivated maize varieties, sweet maize (SMJ), waxy maize (WMJ), and silage maize (SMT) were collected and analyzed using the age-stage, two-sex life table procedure. The highest net consumption rate (C0), net reproductive rate (R0), intrinsic rate of increase (r), finite rate of increase (A), and finite consumption rate (w) were observed on SMJ (C0 = 155 cm2, R0 = 211.1 offspring, r = 0.1494 d-1, A = 1.1611 d-1, and w = 2.809). The lowest population parameter values were observed on SMT (C0 = 122 cm2, R0 = 135.5 offspring, r = 0.1336 d-1, A = 1.1429 d-1, and w = 2.625). The instar-net consumption rates can be described using geometric regression with a 3-fold increase rate from one stage to the next. Because the susceptibility of maize plants to pest damage varies with their growth stage, it is necessary to set separate economic thresholds for pest management at the seedling, bell, and heading stages. In this study, we demonstrated that the life table data, stagespecific leaf consumption, and stage structure could be successfully integrated using computer simulation to obtain optimal timing of pest management procedures. Consolidating these separate data sets is crucial in formulating a sound ecological and economic integrated pest management strategy to control S. frugiperda.

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