Journal
JOURNAL OF ECONOMIC ENTOMOLOGY
Volume 103, Issue 5, Pages 1628-1635Publisher
OXFORD UNIV PRESS INC
DOI: 10.1603/EC10058
Keywords
Nilaparvata lugens; O. officinalis; O. rufipogon; life table
Categories
Funding
- National Science & Technology Support Project [2008BADA5B01]
- Guangdong Science & Technology Support Project [2007A020100004-4]
- National Science Council [NSC 98-2313-B-005-020-MY3]
Ask authors/readers for more resources
Life tables of the planthopper Nilaparvata Tugela (Stal) (Hemiptera: Delphacidae) on two wild rice species, Oryza officinalis Wall, ex Watt. and Oryza rufipogon Gruff., and on 'Taichung Native 1' (O. sativa indica TN1) were studied at 27 degrees 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 (A), 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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available