Population dynamics of the green leafhopper,Nephotettix virescens Distant (Hemiptera: Cicadellidae) in synchronized and staggered transplanting areas of paddy fileds in Indonesia |
| |
Authors: | I Nyoman Widiarta Yoshito Suzuki Hiroichi Sawada Fusao Nakasuji |
| |
Affiliation: | 1. Laboratory of Applied Entomology, Faculty of Agriculture, Okayama University, Tsushima, 700, Okayama, Japan 2. Indonesia-Japan Joint Program on Food Crop Protection, Jalan Pasar Minggu, Jakarta, Indonesia
|
| |
Abstract: | The population dynamics of Nephotettix virescens, a vector of rice tungro virus disease was investigated in a synchronized transplanting area at Jatisari (1984–1986), West Java and in a staggered transplanting area at Sidan (1986–1988), Bali, Indonesia. The FARMCOP suction sampler was employed for population censuses of N. virescens and its natural enemies. The population growth pattern was affected by transplanting pattern: In the staggered transplanting area, the population density increased from the immigrant generation to the first generation, and sharply decrease thereafter, while in the synchronized transplanting area the population density often reached the highest peak in the second generation. The degree of contageousness in the spatial distribution of N. virescens was negatively correlated with population density of the immigrant generation. |
| |
Keywords: | Natural Enemy Paddy Field Sidan Population Reproductive Rate Population Fluctuation |
本文献已被 SpringerLink 等数据库收录! |
|