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纵捲叶虫是江西10大水稻害虫之—,本省各县都有发生,不过为害有轻重之别。如1955年早稻遭害的县份,据省农业厅的不完全资料,有上饶、南城,贵溪、余干、余江、东乡、乐平、星子、赣县、九江、都昌、瑞昌、临川、崇仁、永修、宜春、萍乡、峡江等32县。据18个县的不完全统计,早中稻受害面积约有56万余亩。有的田,稻叶被吃害成一片銹白色,每丛稻葉多的有24条虫。据群众反映,要减产1、2成。现将观察资料整理如下,以供参考: 一、生活习性
Leafroller is one of the top 10 rice pests in Jiangxi Province. All counties in our province have occurred, but the harm is not significant. For example, in the county where the early rice was harmed in 1955, there are incomplete data from the Provincial Department of Agriculture, including Shangrao, Nancheng, Guixi, Yugan, Yujiang, Dongxiang, Leping, Xingzi, Ganxian, Jiujiang, Duchang, Ruichang, Sichuan, Chongren, forever repair, Yichun, Pingxiang, Xiajiang 32 counties. According to the incomplete statistics of 18 counties, the affected area of early middle rice is about 56,000 mu. In some fields, rice leaves are eaten into a rusty white, with more than 24 worms per cluster of rice leaves. According to the masses, to cut 1,2 percent. Now observe the data compiled as follows for reference: First, lifestyle