一、稻曲病在我县的发生概况及其危害: 稻曲病是在我县近年来新发生的一种水稻病害。该病始见于一九七七年城关镇城北大队从福建引入的大穗型品种“千粒串”上,1978年城关镇三二五大队岳家庄生产队试种的“江南矮”感病严重。此后相继在广东引入的“桂朝二号”和推广的“汕优2号”品种上发病。1980年三标公社“桂朝二号”, First, the incidence of false smut in my county and its harm: Falco pyramia is a new occurrence of rice diseases in our county in recent years. The disease first occurred in 1977, Chengguan Town, North Brigade from Fujian introduced large-spike varieties “1000 grain string”, Chengguan Town, Hebei Province in 1978 Yuejia Zhuang Production Team trial team “Jiangnan dwarf” serious illness . Since then have been introduced in Guangdong, “Gui Chau II” and promote the “Shanyou 2” varieties on the disease. 1980 three standard communes “Gui Chao II”