HonQing Dai GuiLu Zhang WenJun Zhang School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China Arthropods ISSN 2224-4255 http://www.iaees.org/publications/journals/arthropods/online-version.asp 2017 6 4 117 125 International Academy of Ecology and Environmental Sciences Hong Kong 1 May 2017 21 July 2017 1 December 2017 Spodoptera exigua life table population parameters temperature development host plants Beet armyworm, Spodoptera exigua (Hubner), is an important insect pest fed on many crops. Temperature and host plant dependent development, survival, and population parameters of S. exigua were studied in present article. The results showed that the generation duration of S. exigua at temperatures 20, 25, 27, 30, and 35 celsius degree were 37.61, 30.78, 22.40, 18.57, and 13.74 days, respectively. S. exigua could not survive at 38 celsius degree. The generation duration of S. exigua, feeding on Lactuca sativa, Lactuca Sativa L., Raphanus sativus L., and Allium fistulosum at 27 celsius degree, were 18.86, 20.10, 22.67, and 22.50 days respectively. And the generation survivorship was 30.91, 29.00, 22.00, and 27.50% respectively, far less than observed 81.91% feeding on artificial diet. S. exigua feeding on L. sativa showed the highest net reproduction rate (216.29), intrinsic rate for increase (0.34), population trend index (76.59), finite rate for increase (1.33), and fecundity (606.5 eggs), while these values were the lowest when it fed on A. fistulosum. Relationship between development rate and temperature was fitted with three models, the linear model, Logistic model and Wang model, and Wang model produced the best fitting goodness. Wang model showed that for the egg, the 1st-5th instar larvae, pupa and adult of S. exigua, the upper limit temperatures for development are 45, 44.5, 44.4, 40.3, 43.6, 38.9, 38, and 38 celsius degree, resepctively; the lower limit temperatures for development are 7.5, 7.2, 13.4, 7.3, 6.6, 5.3, 5.6, and 5.6 celsius degree, respectively, and the optimum temperatures for development are 21.9, 28.9, 25.5, 24.5, 26, 31.6, 30.6, and 29.1 celsius degree, respectively. The upper limit, lower limit and optimum temperatures for development of the entire generation are 38, 5.7 and 30 celsius degree, resepctively. DOI 10.0000/issn-2224-4255-arthropods-2017-v6-0015 http://www.iaees.org/publications/journals/arthropods/articles/2017-6(4)/development-parameters-and-population-life-table-of-beet-armyworm.pdf