Life and Fertility Tables for Spodoptera Exempta (Wlk.) (Lepidoptera, Noctuidae)
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Date
1984
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Publisher
Cambridge University Press
Abstract
Laboratory reared populations of Spodoptera exempta (Wlk.) had higher net reproductive rate and capacity for increase on maize, Zea mais L. and star grass, Cynodon dactylon (L.) Pers. than on Kikuyu grass, Pennisetum clandestinum Chiov., Guinea grass, Panicum maximum Jacq. and Setaria plicatilis (Hochst.) Hack. These parameters were greatly influenced by the larval mortality, but in all cases they were greater than one demonstrating that S. exempta populations can multiply on all the host plants tested. Since no populations with stable age distributions are known for S. exempta the net reproductive rate is more appropriate than the capacity for increase in estimating its population growth.
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http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7302920&fileId=S1742758400001612
Keywords
Spodoptera exempta, Host plants, Net reproductive rate, Capacity for increase, Cohort generation time, Outbreak, Resident populations
Citation
Yarro, J.G., 1984. Life and fertility tables for Spodoptera exempta (Wlk.)(Lepidoptera, Noctuidae). International Journal of Tropical Insect Science, 5(04), pp.303-305.