近年来山区边界和半山区,由于双季早稻与中稻交叉种植,使桥梁田增多,病虫来源丰富。因此,过去发生很轻的稻曲病、稻蝽蟓、稻秆潜蝇、稻象甲、稻瘿蚊等近年呈迅速上升趋势,严重威胁山区半山区的水稻生产。要密切注意这些病虫的发生动态,一旦发现要及时有力地组织防治,谨防水稻次 In recent years, mountainous areas and mid-mountain areas, due to double-season early rice and medium-sized cross-planting, so that increased bridge fields, pests and diseases rich in origin. Therefore, in the past there was a rapid increase in the incidence of smut, rice bugs, rice stinkbugs, rice weevil and rice gall midge in recent years, seriously threatening rice production in the mid-mountainous areas. We must pay close attention to the occurrence of these pests and diseases, once found to be timely and effective organization and control, to guard against rice