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首页> 外文期刊>Indian Journal of Entomology >POPULATION DYNAMICS OF RICE BLUE BEETLE, LEPTISPA PYGMAEA BALY(COLEOPTERA: CHRYSOMELIDAE)
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POPULATION DYNAMICS OF RICE BLUE BEETLE, LEPTISPA PYGMAEA BALY(COLEOPTERA: CHRYSOMELIDAE)

机译：鳞翅目鳞翅目稻米蓝甲虫的种群动力学。

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摘要

Field experiments to study the influence of weather factors on the population dynamics of rice blue beetle, Leptispa pygamea Baly were undertaken at the Regional Agricultural Research Station, Pattambi, Kerala Agricultural University during first andsecond crop seasons, 2005. The field population of L. pygmaea was highest during 28th standard week ending in 15th July in the first crop season and during 40th standard week ending in 7th October in second crop season. The peak population in the field was found to be coinciding with the early tillering stage and thereafter showed a declining trend. The maximum temperature ranged from 29.8 deg C to 31.8 deg C and the minimum temperature from 23.2 deg C to 23.7 deg C with 95% relative humidity during thepeak periods in first and second crop seasons. The population revealed a negative correlation with maximum temperature and sunshine whereas a positive correlation was observed with minimum temperature and relative humidity. Rainfall showed no significant effect. A minimum temperature of 25.0°C and relative humidity of 95 % were found to influence peak population.
机译：在2005年第一和第二个作物季节，在喀拉拉邦农业大学Pattambi的区域农业研究站进行了田间试验，研究天气因素对稻米蓝甲虫Leptispa pygamea Baly种群动态的影响。pygmaea田间种群在第一个作物季节的7月15日结束的第28个标准周和第二个作物季节的10月7日结束的第40个标准周期间最高。发现该田的高峰种群与分till初期相吻合，此后呈下降趋势。在第一季和第二季的高峰期，最高温度为29.8摄氏度至31.8摄氏度，最低温度为23.2摄氏度至23.7摄氏度，相对湿度为95％。种群与最高温度和日照呈负相关，而与最低温度和相对湿度呈正相关。降雨没有明显影响。发现最低温度为25.0°C，相对湿度为95％，会影响峰值种群。

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