贵州近年稻纵卷叶螟的发生日趋严重,尤其在黔东低热地区表现更为突出。在水稻中后期,稻纵卷叶螟的幼虫纵卷稻叶、结苞、啃食叶肉,严重的影响产量,有的甚至无收成。本文系通过人工剪除水稻功能叶,模拟稻纵卷叶螟危害症状,以了解其对水稻产量及其构成因素的影响。 In recent years, the occurrence of C. medinalis in Guizhou has become more and more serious, especially in areas with low heat in eastern Guizhou Province. Late in the rice, larvae of rice leaf roller vertical roll rice leaves, knot bud, eating the mesophyll, a serious impact on yield, and some even without harvest. In this paper, we cut off the functional leaves of rice to simulate the damage of the rice leaf roller, so as to understand its impact on rice yield and its components.