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对稻瘿蚊在晚稻不同生育期的为害与产量损失关系的研究,表明水稻分蘖期受害比秧苗期受害其产量损失要大。分蘖期标葱率在15%以上,对产量损失达到极显著水平,标葱率与产量损失率呈直线正相关。产量损失主要表现为有效穗数及穗粒数减少。
The study on the relationship between the damage of rice gall midge at different growth stages of late rice and yield loss showed that the yield loss at the tillering stage was more than that at seedling stage. At the tillering stage, the onion rate was above 15%, and the yield loss reached a very significant level. The yield rate of standard onion had a linear positive correlation. Yield loss is mainly manifested as effective panicles and grains reduced.