CN113854014A - 一种稻虾田的水稻病虫害防治方法 - Google Patents

一种稻虾田的水稻病虫害防治方法 Download PDF

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CN113854014A
CN113854014A CN202111270797.3A CN202111270797A CN113854014A CN 113854014 A CN113854014 A CN 113854014A CN 202111270797 A CN202111270797 A CN 202111270797A CN 113854014 A CN113854014 A CN 113854014A
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姚晓阳
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Hainan Guigengtian Agriculture Technology Co ltd
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Abstract

本发明提供一种稻虾田的水稻病虫害防治方法,在水稻种植前翻耕暴晒土地、向稻田土壤中拌入药剂A、灌水和换水等处理,清除土壤中的虫卵和有害菌,针对水稻不同的生长时期分别采取药剂B和药剂C进行处理,并设含有黑光灯和无极荧光灯的双波灯,将药剂和杀虫灯联合作用,减少水稻病虫害的发生;本发明针对水稻病虫害的致病情况和药剂A、药剂B和药剂C的作用特点,在水稻生长不同时期选择相应的施药时机,实现病虫害的有效防治,减少药剂的使用量,而且本发明在分蘖期后使用的药剂C对小龙虾无害,对水稻长势无影响,可实现水稻病虫害的绿色防控。

Description

一种稻虾田的水稻病虫害防治方法
技术领域
本发明涉及生态种养技术领域,特别涉及一种稻虾田的水稻病虫害防治方法。
背景技术
“稻虾共作”模式是将水稻种植和小龙虾养殖模式结合的立体种养模式,此生产模式可以充分利用稻田的浅水环境和冬闲期,有效提高稻田单位面积经济效益,提高水资源的利用率,实现一地两用、一水两收,同时还可以进一步减少农业面源污染和水产养殖尾水污染。现有研究的结果表明,稻虾立体种养模式中种植的水稻生长发育比传统方法种植的水稻的品质好,但因小龙虾对许多农药敏感,所以在“稻虾共作”模式中一般使用农药制剂或者使用无公害农药,但不使用农药制剂水稻易受病虫害影响,使用无公害农药的防治效果较差,且也容易影响小龙虾的生长,给水稻病虫害防治技术带来了一定的挑战。
专利CN108718965A中通过使用无公害农药,减少农药使用次数,减少农药对小龙虾的影响。专利CN109418094A中通过夜间水淹法防治水稻病虫害,避免了农药的使用,淹死的害虫还能为虾提供饵料,防治的害虫有限。
因此,需要开发出一种针对稻虾共作模式的水稻病虫害防治方法。
发明内容
为解决上述问题,本发明提供了一种稻虾田的水稻病虫害防治方法。
本发明所述一种稻虾田的水稻病虫害防治方法,包括以下步骤:
S1.水稻种植前处理:在上一茬收获后翻耕土地,暴晒3~5d,向稻田土壤中拌入药剂A,在水稻种植前8~10d,灌水,种植前3~5d,换水,设杀虫灯;所述药剂A包括:按重量份计,0.1~0.2份苏云金杆菌菌粉、5~10份苍耳茎粉和3~4份阿维菌素;
S2.水稻秧苗期:喷洒药剂B,在秧苗期后期打开杀虫灯;所述药剂B包括:按重量份计,0.4~0.6份混合菌粉、10~15份甘油、3~8份苍耳茎粉、0.7~0.8份羟甲基纤维素、1~3份槟榔碱;
S3.水稻分蘖期至抽穗期:将水位降低至离地稻田土壤表面1~3cm处,喷洒药剂C,在孕穗期打开杀虫灯;所述药剂C包括:按重量份计,0.1~0.3份混合菌粉、10~15份甘油、5~6份苦皮藤素、2~4份苍耳茎粉、2~3份百里香油、1~2份井冈霉素;
S4.水稻灌浆期:控制水位与田埂齐平,向水中投放步骤S3所述药剂C,在灌浆期前期打开杀虫灯。
进一步的,所述水稻选择抗病性高的水稻品种。
进一步的,所述杀虫灯为含有黑光灯和无极荧光灯的双波灯。
进一步的,所述黑光灯和无极荧光灯的比例为(3~4):(7~6)。
进一步的,所述打开杀虫灯为在晚上21:30~22:00打开杀虫灯,第二天凌晨4:30~5:00关灯。
进一步的,所述药剂A的拌入量为2.5~4.8g/m2
进一步的,所述苏云金杆菌菌粉中苏云金杆菌的含量为1×107~108cfu/g。
进一步的,所述阿维菌素为3000~5000倍1.8%阿维菌素乳油。
进一步的,所述喷洒药剂B为将药剂B稀释100~200倍后喷洒;所述喷洒的喷洒量为150~200mL/亩,喷洒时机为秧苗期中期。
进一步的,所述苦皮藤素为0.2%苦皮藤素乳油。
进一步的,所述井冈霉素为20%井冈霉素可溶粉剂。
进一步的,步骤S3中,喷洒药剂C为将药剂C稀释200~300倍后喷洒;所述喷洒的喷洒量为200~350mL/亩,喷洒时机为分蘖期初期、孕穗期中期和抽穗期初期。
进一步的,所述混合菌粉为短隐杆菌和白僵菌按(4~5):1的数量比混合所得;所述每1g混合菌粉中的菌数为1×106~107cfu。
进一步的,步骤S4中,所述药剂C的投放量为8.6~10.5g/亩,喷洒时机为灌浆期中期。
进一步的,本发明所述一种稻虾田的水稻病虫害防治方法在防治水稻病害和虫害中的应用;所述病害包括水稻稻瘟病(PyriculariaoryaeCav.)、水稻纹枯病(Thanatephorus cucumeris(Frank)Donk.)和水稻恶苗病(Fusarium moniliformeSheld.);所述虫害包括稻螟虫、线虫、灰飞虱和稻飞虱。
与现有技术相比,本发明的有益效果是:
本发明一种稻虾田的水稻病虫害防治方法,在水稻种植前翻耕暴晒土地、向稻田土壤中拌入药剂A、灌水和换水等处理,清除土壤中的虫卵和有害菌,针对水稻不同的生长时期分别采取药剂B和药剂C进行处理,并设有杀虫灯,将药剂和杀虫灯联合作用,减少水稻病虫害的发生。
本发明针对水稻病虫害的致病情况和药剂A、药剂B和药剂C的作用特点,在水稻生长不同时期选择相应的施药时机,实现病虫害的有效防治,减少药剂的使用量,而且本发明在分蘖期后使用的药剂C对小龙虾无害,对水稻长势无影响,可实现水稻病虫害的绿色防控。
本发明采用含有黑光灯和无极荧光灯的双波灯作为杀虫灯,与药剂A、药剂B和药剂C联用,可有效控制多种水稻害虫。
具体实施方式
为了更好理解本发明技术内容,下面提供具体实施例,对本发明做进一步的说明。
本发明以下实施例在2018年7月,在海南省海口市龙华区开展,每个实施例的试验面积为0.5亩;
本发明使用的水稻品种为博优225;
本发明以下实施例使用的1.8%阿维菌素乳油为河北金德伦生化科技有限公司所售产品;
本发明以下实施例使用的0.2%苦皮藤素乳油为西北农林科技大学德力邦科技股份有限公司所售产品;
本发明以下实施例使用的20%井冈霉素可溶粉剂为河北金德伦生化科技有限公司所售产品;
实施例1
一种稻虾田的水稻病虫害防治方法,包括以下步骤:
S1.水稻种植前处理:在上一茬收获后翻耕土地,暴晒3~5d,向稻田土壤中按3g/m2的量拌入药剂A,在水稻种植前8~10d,灌水,种植前3~5d,换水,设黑光灯和无极荧光灯的比例为3:7的双波灯;所述药剂A包括:0.18g苏云金杆菌菌粉、9g苍耳茎粉和3g 5000倍1.8%阿维菌素乳油;
S2.水稻秧苗期:在秧苗期中期,将药剂B稀释100倍后喷洒,药剂B包括:0.5g混合菌粉(短隐杆菌:白僵菌=4:1)、13g甘油、5g苍耳茎粉、0.8g羟甲基纤维素、1.3g槟榔碱,喷洒量为150mL/亩;在秧苗期后期,于晚上21:30打开双波灯,第二天凌晨4:30关灯;
S3.水稻分蘖期至抽穗期:将水位降低至离稻田土壤表面1~3cm处,在分蘖期初期、孕穗期中期和抽穗期初期,将药剂C稀释300倍后喷洒,药剂C包括:0.2g混合菌粉(短隐杆菌:白僵菌=5:1)、14g甘油、6g 0.2%苦皮藤素乳油、3g苍耳茎粉、2g百里香油、1g 20%井冈霉素可溶粉剂,喷洒量为250mL/亩;在孕穗期,于晚上21:30打开双波灯,第二天凌晨4:30关灯;
S4.水稻灌浆期:控制水位与田埂齐平,在灌浆期前期,于晚上21:30打开双波灯,第二天凌晨4:30关灯,在灌浆期中期,向水中投放药剂C,药剂C包括:0.1g混合菌粉(短隐杆菌:白僵菌=5:1)、10g甘油、5g 0.2%苦皮藤素乳油、2g苍耳茎粉、2g百里香油、1g 20%井冈霉素可溶粉剂,投放量为8.6g/亩。
实施例2
一种稻虾田的水稻病虫害防治方法,包括以下步骤:
S1.水稻种植前处理:在上一茬收获后翻耕土地,暴晒3~5d,向稻田土壤中按2.5g/m2的量拌入药剂A,在水稻种植前8~10d,灌水,种植前3~5d,换水,设黑光灯和无极荧光灯的比例为4:6的双波灯;所述药剂A包括:0.2g苏云金杆菌菌粉、5g苍耳茎粉和4g3000倍1.8%阿维菌素乳油;
S2.水稻秧苗期:在秧苗期中期,将药剂B稀释200倍后喷洒,药剂B包括:0.4g混合菌粉(短隐杆菌:白僵菌=5:1)、10g甘油、3g苍耳茎粉、0.7g羟甲基纤维素、1g槟榔碱,喷洒量为200mL/亩;在秧苗期后期,于晚上22:00打开双波灯,第二天凌晨5:00关灯;
S3.水稻分蘖期至抽穗期:将水位降低至离稻田土壤表面1~3cm处,在分蘖期初期、孕穗期中期和抽穗期初期,将药剂C稀释200倍后喷洒,药剂C包括:0.1g混合菌粉(短隐杆菌:白僵菌=4:1)、10g甘油、5g 0.2%苦皮藤素乳油、2g苍耳茎粉、3g百里香油、2g 20%井冈霉素可溶粉剂,喷洒量为350mL/亩;在孕穗期,于晚上22:00打开双波灯,第二天凌晨5:00关灯;
S4.水稻灌浆期:控制水位与田埂齐平,在灌浆期前期,于晚上22:00打开双波灯,第二天凌晨5:00关灯,在灌浆期中期,向水中投放药剂C,药剂C包括:0.3g混合菌粉(短隐杆菌:白僵菌=4:1)、14g甘油、6g 0.2%苦皮藤素乳油、3g苍耳茎粉、3g百里香油、1g 20%井冈霉素可溶粉剂,投放量为9g/亩。
实施例3
一种稻虾田的水稻病虫害防治方法,包括以下步骤:
S1.水稻种植前处理:在上一茬收获后翻耕土地,暴晒3~5d,向稻田土壤中按3g/m2的量拌入药剂A,在水稻种植前8~10d,灌水,种植前3~5d,换水,设黑光灯;所述药剂A包括:0.18g苏云金杆菌菌粉、9g苍耳茎粉和3g 5000倍1.8%阿维菌素乳油;
S2.水稻秧苗期:在秧苗期中期,将药剂B稀释100倍后喷洒,药剂B包括:0.5g混合菌粉(短隐杆菌:白僵菌=4:1)、13g甘油、5g苍耳茎粉、0.8g羟甲基纤维素、1.3g槟榔碱,喷洒量为150mL/亩;在秧苗期后期,于晚上21:30打开黑光灯,第二天凌晨4:30关灯;
S3.水稻分蘖期至抽穗期:将水位降低至离稻田土壤表面1~3cm处,在分蘖期初期、孕穗期中期和抽穗期初期,将药剂C稀释300倍后喷洒,药剂C包括:0.2g混合菌粉(短隐杆菌:白僵菌=5:1)、14g甘油、6g 0.2%苦皮藤素乳油、3g苍耳茎粉、2g百里香油、1g 20%井冈霉素可溶粉剂,喷洒量为250mL/亩;在孕穗期,于晚上21:30打开黑光灯,第二天凌晨4:30关灯;
S4.水稻灌浆期:控制水位与田埂齐平,在灌浆期前期,于晚上21:30打开黑光灯,第二天凌晨4:30关灯,在灌浆期中期,向水中投放药剂C,药剂C包括:0.1g混合菌粉(短隐杆菌:白僵菌=5:1)、10g甘油、5g 0.2%苦皮藤素乳油、2g苍耳茎粉、2g百里香油、1g 20%井冈霉素可溶粉剂,投放量为8.6g/亩。
实施例4
一种稻虾田的水稻病虫害防治方法,包括以下步骤:
S1.水稻种植前处理:在上一茬收获后翻耕土地,暴晒3~5d,向稻田土壤中按3g/m2的量拌入药剂A,在水稻种植前8~10d,灌水,种植前3~5d,换水,设黑光灯和无极荧光灯的比例为3:7的双波灯;所述药剂A包括:0.18g苏云金杆菌菌粉、9g苍耳茎粉和3g 5000倍1.8%阿维菌素乳油;
S2.水稻秧苗期:在秧苗期前期,将药剂B稀释100倍后喷洒,药剂B包括:0.5g混合菌粉(短隐杆菌:白僵菌=4:1)、13g甘油、5g苍耳茎粉、0.8g羟甲基纤维素、1.3g槟榔碱,喷洒量为150mL/亩;在秧苗期后期,于晚上21:30打开双波灯,第二天凌晨4:30关灯;
S3.水稻分蘖期至抽穗期:将水位降低至离稻田土壤表面1~3cm处,在分蘖期中期、孕穗期后期和抽穗期中期,将药剂C稀释300倍后喷洒,药剂C包括:0.2g混合菌粉(短隐杆菌:白僵菌=5:1)、14g甘油、6g 0.2%苦皮藤素乳油、3g苍耳茎粉、2g百里香油、1g 20%井冈霉素可溶粉剂,喷洒量为250mL/亩;在孕穗期,于晚上21:30打开双波灯,第二天凌晨4:30关灯;
S4.水稻灌浆期:控制水位与田埂齐平,在灌浆期前期,于晚上21:30打开双波灯,第二天凌晨4:30关灯,在灌浆期中期,向水中投放药剂C,药剂C包括:0.1g混合菌粉(短隐杆菌:白僵菌=5:1)、10g甘油、5g 0.2%苦皮藤素乳油、2g苍耳茎粉、2g百里香油、1g 20%井冈霉素可溶粉剂,投放量为8.6g/亩。
实施例5
一种稻虾田的水稻病虫害防治方法,包括以下步骤:
S1.水稻种植前处理:在上一茬收获后翻耕土地,暴晒3~5d,向稻田土壤中按3g/m2的量拌入药剂A,在水稻种植前8~10d,灌水,种植前3~5d,换水,设黑光灯和无极荧光灯的比例为3:7的双波灯;所述药剂A包括:0.18g苏云金杆菌菌粉、9g枯草芽孢杆菌和3g 5000倍1.8%阿维菌素乳油;
S2.水稻秧苗期:在秧苗期中期,将药剂B稀释100倍后喷洒,药剂B包括:0.5g混合菌粉(短隐杆菌:白僵菌=4:1)、13g甘油、5g苍耳茎粉、0.8g羟甲基纤维素、1.3g槟榔碱,喷洒量为150mL/亩;在秧苗期后期,于晚上21:30打开双波灯,第二天凌晨4:30关灯;
S3.水稻分蘖期至抽穗期:将水位降低至离稻田土壤表面1~3cm处,在分蘖期初期、孕穗期中期和抽穗期初期,将药剂C稀释300倍后喷洒,药剂C包括:0.2g混合菌粉(短隐杆菌:白僵菌=5:1)、14g甘油、6g 0.2%苦皮藤素乳油、3g苍耳茎粉、2g百里香油、1g 20%井冈霉素可溶粉剂,喷洒量为250mL/亩;在孕穗期,于晚上21:30打开双波灯,第二天凌晨4:30关灯;
S4.水稻灌浆期:控制水位与田埂齐平,在灌浆期前期,于晚上21:30打开双波灯,第二天凌晨4:30关灯,在灌浆期中期,向水中投放药剂C,药剂C包括:0.1g混合菌粉(短隐杆菌:白僵菌=5:1)、10g甘油、5g 0.2%苦皮藤素乳油、2g苍耳茎粉、2g百里香油、1g 20%井冈霉素可溶粉剂,投放量为8.6g/亩。
实施例6
一种稻虾田的水稻病虫害防治方法,包括以下步骤:
S1.水稻种植前处理:在上一茬收获后翻耕土地,暴晒3~5d,向稻田土壤中按3g/m2的量拌入药剂A,在水稻种植前8~10d,灌水,种植前3~5d,换水,设黑光灯和无极荧光灯的比例为3:7的双波灯;所述药剂A包括:0.18g苏云金杆菌菌粉、9g苍耳茎粉和3g 5000倍1.8%阿维菌素乳油;
S2.水稻秧苗期:在秧苗期中期,将药剂B稀释100倍后喷洒,药剂B包括:0.5g混合菌粉(短隐杆菌:白僵菌=4:1)、13g甘油、5g 10%宁南霉素可溶性粉剂、0.8g羟甲基纤维素,喷洒量为150mL/亩;在秧苗期后期,于晚上21:30打开双波灯,第二天凌晨4:30关灯;
S3.水稻分蘖期至抽穗期:将水位降低至离稻田土壤表面1~3cm处,在分蘖期初期、孕穗期中期和抽穗期初期,将药剂C稀释300倍后喷洒,药剂C包括:0.2g混合菌粉(短隐杆菌:白僵菌=5:1)、14g甘油、6g 0.2%苦皮藤素乳油、3g苍耳茎粉、2g百里香油、1g 20%井冈霉素可溶粉剂,喷洒量为250mL/亩;在孕穗期,于晚上21:30打开双波灯,第二天凌晨4:30关灯;
S4.水稻灌浆期:控制水位与田埂齐平,在灌浆期前期,于晚上21:30打开双波灯,第二天凌晨4:30关灯,在灌浆期中期,向水中投放药剂C,药剂C包括:0.1g混合菌粉(短隐杆菌:白僵菌=5:1)、10g甘油、5g 0.2%苦皮藤素乳油、2g苍耳茎粉、2g百里香油、1g 20%井冈霉素可溶粉剂,投放量为8.6g/亩。
实施例7
一种稻虾田的水稻病虫害防治方法,包括以下步骤:
S1.水稻种植前处理:在上一茬收获后翻耕土地,暴晒3~5d,向稻田土壤中按3g/m2的量拌入药剂A,在水稻种植前8~10d,灌水,种植前3~5d,换水,设黑光灯和无极荧光灯的比例为3:7的双波灯;所述药剂A包括:0.18g苏云金杆菌菌粉、9g苍耳茎粉和3g 5000倍1.8%阿维菌素乳油;
S2.水稻秧苗期:在秧苗期中期,将药剂B稀释100倍后喷洒,药剂B包括:0.5g混合菌粉(短隐杆菌:白僵菌=4:1)、13g甘油、5g苍耳茎粉、0.8g羟甲基纤维素、1.3g槟榔碱,喷洒量为150mL/亩;在秧苗期后期,于晚上21:30打开双波灯,第二天凌晨4:30关灯;
S3.水稻分蘖期至抽穗期:将水位降低至离稻田土壤表面1~3cm处,在分蘖期初期、孕穗期中期和抽穗期初期,将药剂C稀释300倍后喷洒,药剂C包括:0.2g混合菌粉(短隐杆菌:白僵菌=5:1)、14g甘油、6g 0.2%苦皮藤素乳油、3g苍耳茎粉、2g苦参碱、1g 20%的叶青双可湿性粉剂,喷洒量为250mL/亩;在孕穗期,于晚上21:30打开双波灯,第二天凌晨4:30关灯;
S4.水稻灌浆期:控制水位与田埂齐平,在灌浆期前期,于晚上21:30打开双波灯,第二天凌晨4:30关灯,在灌浆期中期,向水中投放药剂C,药剂C包括:0.1g混合菌粉(短隐杆菌:白僵菌=5:1)、10g甘油、5g 0.2%苦皮藤素乳油、2g苍耳茎粉、2g苦参碱、1g 20%的叶青双可湿性粉剂,投放量为8.6g/亩。
实施例8
一种稻虾田的水稻病虫害防治方法,包括以下步骤:
S1.水稻种植前处理:在上一茬收获后翻耕土地,暴晒3~5d后灌水,设黑光灯和无极荧光灯的比例为3:7的双波灯;所述药剂A包括:0.18g苏云金杆菌菌粉、9g苍耳茎粉和3g5000倍1.8%阿维菌素乳油;
S2.水稻秧苗期:在秧苗期中期,将药剂B稀释100倍后喷洒,药剂B包括:0.5g混合菌粉(短隐杆菌:白僵菌=4:1)、13g甘油、5g苍耳茎粉、0.8g羟甲基纤维素、1.3g槟榔碱,喷洒量为150mL/亩;在秧苗期后期,于晚上21:30打开双波灯,第二天凌晨4:30关灯;
S3.水稻分蘖期至抽穗期:将水位降低至离稻田土壤表面1~3cm处,在分蘖期初期、孕穗期中期和抽穗期初期,将药剂C稀释300倍后喷洒,药剂C包括:0.2g混合菌粉(短隐杆菌:白僵菌=5:1)、14g甘油、6g 0.2%苦皮藤素乳油、3g苍耳茎粉、2g百里香油、1g 20%井冈霉素可溶粉剂,喷洒量为250mL/亩;在孕穗期,于晚上21:30打开双波灯,第二天凌晨4:30关灯;
S4.水稻灌浆期:控制水位与田埂齐平,在灌浆期前期,于晚上21:30打开双波灯,第二天凌晨4:30关灯,在灌浆期中期,向水中投放药剂C,药剂C包括:0.1g混合菌粉(短隐杆菌:白僵菌=5:1)、10g甘油、5g 0.2%苦皮藤素乳油、2g苍耳茎粉、2g百里香油、1g 20%井冈霉素可溶粉剂,投放量为8.6g/亩。
在水稻种植过程中分别在秧苗期、分蘖期、孕穗期、抽穗期和灌浆期,分区调查各组的发病率和虫源密度,在收获后记录产量,发病率和产量统计结果见表1,虫源基数调查结果见表2;
发病率调查方法:各组随机取5点,每点查100穗记录水稻发病情况,每点调查15丛,统计虫源密度;
表1发病情况及产量
秧苗期(%) 分蘖期(%) 孕穗期(%) 抽穗期(%) 灌浆期(%) 产量(kg/亩)
实施例1 0.2 0.4 0.6 1.1 0.2 601.45
实施例2 0.3 0.4 0.4 1.3 0.6 586.52
实施例3 0.8 1.2 1.4 2.9 1.6 563.09
实施例4 0.9 1.4 1.7 3.5 1.3 560.28
实施例5 1.8 2.2 2.6 3.2 2.5 544.26
实施例6 0.9 1.8 2.5 2.7 2.1 557.54
实施例7 0.5 1.1 3.9 4.6 2.9 535.16
实施例8 1.5 1.9 2.3 2.8 2.4 554.83
空白对照 0.8 1.1 1.6 2.3 1.4 554.67
表2虫源密度调查结果 单位:头/100丛
秧苗期 分蘖期 孕穗期 抽穗期 灌浆期
实施例1 152.4 325.5 295.3 351.1 256.5
实施例2 185.1 354.8 324.5 398.4 276.8
实施例3 252.7 429.4 403.6 530.6 381.6
实施例4 220.8 387.8 390.5 474.9 314.9
实施例5 271.4 495.2 472.6 575.4 438.1
实施例6 258.3 411.2 423.9 521.7 271.3
实施例7 173.6 405.9 457.5 561.4 363.0
实施例8 252.7 413.5 432.8 507.6 317.1
空白对照 389.2 575.8 624.6 683.4 527.5
由上述结果可知,本发明实施例1-2的防治方法,可以有效防治水稻病虫害,提高水稻产量,防治效果明显优于空白对照组。
实施例3与实施例1相比,表明采用本发明的双波灯与药剂配合使用的防治效果更佳。实施例4~7与实施例1相比,表明本发明药剂成分和药剂使用时机均会影响防治效果。实施例8与实施例1相比,表明本发明在种植前对稻田的处理能够有效清楚土壤病菌和虫卵,可降低病害的发病率和害虫密度。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (10)

1.一种稻虾田的水稻病虫害防治方法,其特征在于,包括以下步骤:
S1.水稻种植前处理:在上一茬收获后翻耕土地,暴晒3~5d,向稻田土壤中拌入药剂A,在水稻种植前8~10d,灌水,种植前3~5d,换水,设杀虫灯;所述药剂A包括:按重量份计,0.1~0.2份苏云金杆菌菌粉、5~10份苍耳茎粉和3~4份阿维菌素;
S2.水稻秧苗期:喷洒药剂B,在秧苗期后期打开杀虫灯;所述药剂B包括:按重量份计,0.4~0.6份混合菌粉、10~15份甘油、3~8份苍耳茎粉、0.7~0.8份羟甲基纤维素、1~3份槟榔碱;
S3.水稻分蘖期至抽穗期:将水位降低至离稻田土壤表面1~3cm处,喷洒药剂C,在孕穗期打开杀虫灯;所述药剂C包括:按重量份计,0.1~0.3份混合菌粉、10~15份甘油、5~6份苦皮藤素、2~4份苍耳茎粉、2~3份百里香油、1~2份井冈霉素;
S4.水稻灌浆期:控制水位与田埂齐平,向水中投放步骤S3所述药剂C,在灌浆期前期打开杀虫灯。
2.如权利要求1所述的稻虾田的水稻病虫害防治方法,其特征在于,所述水稻选择抗病性高的水稻品种。
3.如权利要求1所述的稻虾田的水稻病虫害防治方法,其特征在于,所述杀虫灯为含有黑光灯和无极荧光灯的双波灯;所述黑光灯和无极荧光灯的比例为(3~4):(7~6)。
4.如权利要求1所述的稻虾田的水稻病虫害防治方法,其特征在于,所述杀虫灯的开灯时间为晚上21:30~22:00,关灯时间为开灯的第二天凌晨4:30~5:00。
5.如权利要求1所述的稻虾田的水稻病虫害防治方法,其特征在于,所述药剂A的拌入量为2.5~4.8g/m2
6.如权利要求1所述的稻虾田的水稻病虫害防治方法,其特征在于,所述混合菌粉为短隐杆菌和白僵菌按(4~5):1的数量比混合所得;所述每1g混合菌粉中的菌数为1×106~107cfu。
7.如权利要求1所述的稻虾田的水稻病虫害防治方法,其特征在于,所述喷洒药剂B为将药剂B稀释100~200倍后喷洒;所述喷洒的喷洒量为150~200mL/亩,喷洒时机为秧苗期中期。
8.如权利要求1所述的稻虾田的水稻病虫害防治方法,其特征在于,步骤S3中,喷洒药剂C为将药剂C稀释200~300倍后喷洒;所述喷洒的喷洒量为200~350mL/亩,喷洒时机为分蘖期初期、孕穗期中期和抽穗期初期。
9.如权利要求1所述的稻虾田的水稻病虫害防治方法,其特征在于,步骤S4中,所述药剂C的投放量为8.6~10.5g/亩,喷洒时机为灌浆期中期。
10.如权利要求1-9任一项所述的稻虾田的水稻病虫害防治方法在防治水稻病害和虫害中的应用;所述病害包括水稻稻瘟病(PyriculariaoryaeCav.)、水稻纹枯病(Thanatephorus cucumeris(Frank)Donk.)和水稻恶苗病(Fusarium moniliformeSheld.);所述虫害包括稻螟虫、线虫、灰飞虱和稻飞虱。
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