ICS 65.020 CCS B 16 湖 DB43 南 省 地 方 标 准 DB43/T 1 9 63—2020 水稻根结线虫病综合防控技术规程 Technical Regulation for Integrated Control to Rice Root-knot nematode Disease 2020-12-29发布 湖南省市场监督管理局 2021-03-29实施 发 布 DB43/T 1963—2020 目 次 前言························································································································ Ⅲ 1 范围 ····················································································································· 1 2 规范性引用文件 ······································································································ 1 3 术语与定义 ············································································································ 1 3.1 防治指标 Control threshold ············································································ 1 3.2 抗病品种 Resistant varieties ········································································· 1 3.3 耐病品种 Tolerant varieties ··········································································· 1 3.4 水稻根结线虫 Rice root-knot nematode ····························································· 1 3.5 种子处理 Seeds treatment ··············································································· 2 4 防控原则 ··············································································································· 2 5 防控措施 ··············································································································· 2 5.1 农业防控技术 ··································································································· 2 5.2 物理防控技术 ··································································································· 2 5.3 生物防控技术 ··································································································· 2 5.4 化学防控技术 ··································································································· 2 6 病害检测与监测 ······································································································ 2 7 废弃物处理 ············································································································ 3 8 档案管理 ··············································································································· 3 附录 A（资料性） 水稻根结线虫病田间症状······································································ 4 附录 B（资料性） 水稻根结线虫病调查方法······································································ 5 附录 C（资料性） 水稻根结线虫防治记录表格··································································· 6 I DB43/T 1963—2020 II DB43/T 1963—2020 前 言 本文件按照 GB/T 1.1—2020 给出的规则起草。 请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别这些专利的责任。 本文件由湖南省农业农村厅提出。 本文件由湖南省农业标准化技术委员会归口。 本文件起草单位：湖南省植物保护研究所。 本文件主要起草人：成飞雪、王东伟、刘勇、张德咏、王剑、朱春晖、程菊娥、孙书娥。 III DB43/T 1963—2020 IV DB43/T 1963—2020 水稻根结线虫病综合防控技术规程 1 范围 本文件规定了水稻根结线虫病（rice root-knot nematode disease）的术语和定义、防治原则、防治措 施、病害检测与监测、废弃物处理以及档案管理等技术要求。 本 文 件 适 用 于 水 稻 与 旱 稻 上 由 拟 禾 本 科 根 结 线 虫 （ Meloidogyne graminicola ）、 稻 根 结 线 虫 （M.oryzae） 、南方根结线虫（M.incognita）等侵染引起的水稻根结线虫病的综合防控。 2 规范性引用文件 下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文件， 仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于本 文件。 GB/T 8321 农药合理使用准则 GB/T 17980.38 农药田间药效试验准则（一）杀线虫剂防治根部线虫病 3 术语与定义 3.1 防治指标 Control threshold 病原线虫群体增加到造成水稻产量显著损失而必须进行防治时的群体密度临界值，一般用每百克土 壤中线虫的卵或幼虫的群体密度来表示。 3.2 抗病品种 Resistant varieties 对某一种或几种病原线虫具有抵御入侵的特征和能力的水稻品种。 3.3 耐病品种 Tolerant varieties 水稻在受到病原线虫侵染后，虽表现出一定的病害症状，但对产量和品质不产生严重影响的水稻 品种。 3.4 水稻根结线虫 Rice root-knot nematode 为害水稻、旱稻等作物的内寄生线虫。属于动物界（Animalia） 、 线虫门（Nematoda）、侧尾腺纲 （Secernentea） 、垫刃目（Tylenchida） 、异皮科（Heteroderidae） 、 根结线虫属（Meloidogyne）。主要有 拟禾本科根结线虫（Meloidogyne graminicola） 、稻根结线虫（M. oryza） 、南方根结线虫（M. incognita）、 萨拉斯根结线虫（M. salasi） 、海南根结线虫（M. hainanensis）等 10 多种植物寄生线虫。其中以拟禾本 科根结线虫引起的水稻根结线虫病危害损失最为严重，具体危害特征参见附录 A。 1 DB43/T 1963—2020 3.5 种子处理 Seeds treatment 播种前采用物理、化学或生物措施对种子进行处理的方法，包括精选、晒种、浸种、拌种、催芽等。 目的是促使种子发芽快而整齐、幼苗生长健壮及预防病虫害等。 4 防控原则 按照“预防为主，综合防控”的植保方针。 坚持以“农业防治、物理防治、生物防治为主，化学防治为辅，分区治理”的防控原则，将病原线 虫的种群密度控制在经济受害允许水平之下，以获得最佳的经济、生态和社会效益。 5 防控措施 5.1 农业防控技术 在水稻根结线虫易发病区，应采用如下措施进行防控： 5.1.1 选择抗（耐）病主栽品种，如 C 两优 4418 等。 5.1.2 直播田苗期根据苗高，保持田间水位（1 cm ～ 4 cm） 。 5.1.3 及时清除田间杂草及稻桩，田外集中销毁。 5.1.4 进行水旱轮作，可与甘薯、马铃薯、玉米、苎麻等作物进行轮作。 5.1.5 宜采用育苗移栽种植，选择没有水稻根结线虫分布的田块集中育苗。病区秧苗不应外运。 5.2 物理防控技术 对水稻根结线虫病发病田块，在一季稻或晚稻收割后进行深耕与灌水，保持 4 cm ～ 6 cm 以上水 深至第二年水稻种植前。 5.3 生物防控技术 2 5.3.1 直播稻可用 1.8％阿维菌素乳油 50 ml～100 ml/667 m ，兑土拌匀撒施，覆土混匀后播种；或 2 用 2 亿 cfu/mL 嗜硫小红卵菌微生物菌剂 5000 ml/667 m 进行苗期喷雾。 2 5.3.2