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褐稻虱 Nilapauata Ingens Stal 是水稻上重要吸汁害虫之一。其取食量的变动,关系到数量消长、为害程度、防治适期和防治指标。我们在1986～1988年中粳稻褐稻虱损失动态模型研究的基础上,1989年对褐稻虱不同虫量、虫态,在水稻不同生育期和不同温度下的蜜露排泄量进行了初步研究,现报告如下:材料与方法供试品种为高感褐稻虱的盐粳2号。分别移栽不同生育期(孕穗期、扬花期,灌浆期、乳熟期)的稻株于口径20cm 的陶钵内,每钵1株并剪除分蘖株,将圆形滤纸(直径10cm)中
Nilapauata Ingens Stal is one of the most important parasitic pests in rice. Changes in their food intake, relates to the volume growth and decline, the degree of harm, prevention and control of the appropriate period and indicators. Based on the study of the dynamic model of brown planthopper loss in mid-late japonica from 1986 to 1988, we conducted a preliminary study on the honeydew excretion in different rice insect pests, insect states, and rice growth stages at different growth stages and different temperatures , Are reported as follows: Materials and methods tested varieties of high resistance to brown planthopper salt japonica 2. Transplanting rice plants of different growth stages (booting stage, flowering stage, grain filling stage and milking stage) in a pot of 20 cm in diameter, one per pot and cutting the tillers, the round filter paper (diameter 10 cm)