Life-Table Analysis of the Performance of Nilaparvata lugens (Hemiptera: Delphacidae) on Two Wild Rice Species
Authors: Hu, Liang-Xiong; Chi, Hsin; Zhang, Jie; Zhou, Qiang; Zhang, Run-Jie
Source: Journal of Economic Entomology, Volume 103, Number 5, October 2010 , pp. 1628-1635(8)
Publisher: Entomological Society of America
Abstract:Life tables of the planthopper Nilaparvata lugens (Stål) (Hemiptera: Delphacidae) on two wild rice species, Oryza officinalis Wall. ex Watt. and Oryza rufipogon Griff., and on ‘Taichung Native 1’ (O. sativa indica TN1) were studied at 27°C in the laboratory. The raw data were analyzed based on the age-stage, two-sex life table to take both sexes and the variable developmental rate among individuals and between sexes into consideration. The intrinsic rate of increase (r), the finite rate (λ), the net reproduction rate (r 0 ) and the mean generation time (T) of N. lugens on O. officinalis were −0.0616 d−1, 0.9402 d−1, 0.10 offspring, and 36.7 d, respectively, showing that the species is resistant to N. lugens. The resistance of O. officinalis is expressed in the long developmental time from first to fifth instar of N. lugens, the reduced preadult survival rate, the short adult longevity, and low fecundity. However, the population parameters of the N. lugens on O. rufipogon and TN1 were 0.1096 d−1, 1.1158 d−1, 67.82 offspring, and 38.6 d and 0.1340 d−1, 1.1434 d−1, 144.77 offspring, and 37.2 d, respectively. These population parameters showed that N. lugens can successfully survive and reproduce on both O. rufipogon and TN1.
Document Type: Research Article
Publication date: 2010-10-01
- Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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