CN111990146A - 一种蜜柚黑星病综合防治方法 - Google Patents

一种蜜柚黑星病综合防治方法 Download PDF

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CN111990146A
CN111990146A CN202010786583.0A CN202010786583A CN111990146A CN 111990146 A CN111990146 A CN 111990146A CN 202010786583 A CN202010786583 A CN 202010786583A CN 111990146 A CN111990146 A CN 111990146A
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蓝炎阳
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Fujian Longmengnong Biotechnology Co ltd
ZHANGZHOU INSTITUTE OF AGRICULTURAL SCIENCES
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Abstract

本发明公开了一种蜜柚黑星病综合防治方法,包括果树治理、土质调节、物理防治和农药防治。本发明通过使树干向上翘起,并拉开距离,便于通风透光,疏果使蜜柚生长更充分,减少落果率,配合透气的透明薄膜袋避免病虫接触传播,排水渠和反光地膜配合地势的物理防治,能够使果园保持干燥和果树底部采光,防止潮湿环境下真菌繁殖侵染,降低黑星病发病率,除草松土使土质疏松透气,并配合深埋有机肥和地表无机肥以及低毒杀菌剂、抗菌剂拌料、芸苔素和微肥,提高土壤肥力,干燥地面,有效杀灭果园的细菌真菌病毒,提高果树抵抗力,稳定增产,配合农药防治,将黑星病发病率降到最低,同时能够防止黑星病进一步扩散,及时止损。

Description

一种蜜柚黑星病综合防治方法
技术领域
本发明涉及黑星病防治技术领域,具体涉及一种蜜柚黑星病综合防治方 法。
背景技术
柚子是在秋天里我们最喜欢的一种水果,而蜜柚是属于柚子里的一个分 类。蜜柚主要生长在我国的南方地区,其不但价格不高,而且味道十分诱人, 所含的果汁含量极高,有“天然水果罐头”的称号。经常食用蜜柚不但能够清 热解火,还可以有效的提高身体的免疫力,深受众多消费者的喜爱。而在种植 蜜柚的过程中,经常会遇到一些病虫害的侵咬,而蜜柚黑星病就是常见的病害 之一。
黑星病是由一种真菌引起的病害,其由半知菌瓜疮痂枝孢霉真菌侵染引 起。病菌以菌丝体或分生孢子随病残体在田间、土壤中、棚室架材上越冬,成 为来年的初侵染源。病菌主要从表皮直接穿透,或从气孔、伤口侵入引起发病, 病株上产生的分生孢子靠气流、雨水溅射和农事操作在田间传播蔓延。发病初 期在果面上形成红褐色小斑,扩大后呈圆形,直径1-6毫米,通常2-3毫米, 病斑四周稍***,呈暗红褐色至黑褐色,中部凹陷呈灰褐色,其上生黑色小粒 点。病菌一般只侵入果皮,不入果肉,但严重时引起落果。该病菌分生孢子器 在病果上越冬,次年春暖后散出分生孢子,通过风、雨或昆虫传播,3-4月侵 染幼果。病菌潜育期长,受害果7-8月才出现症状,9-10月为发病盛期。该病 在高温多湿、果园郁闭的条件下发病较重,干旱时少发病。病菌9-36℃均可发 育生长,但发育最适宜温度为20-22℃。相对湿度93%以上才能产生分生孢子, 而分生孢子萌发必须要有水膜(滴)存在。病菌喜弱光,在春天温度低、湿度 大、透光不好的温室内发病早而严重,活性最适PH5-6.5。4-5年生幼树不易 发病,树势衰弱的老果园易感病。
目前,通常通过果树治理和农药防治的方法对黑星病进行防护和治理, 但是该情况下效果有限,不能有效防护黑星病发病,不能及时止损。
因此,发明一种蜜柚黑星病综合防治方法来解决上述问题很有必要。
发明内容
本发明的目的是提供一种蜜柚黑星病综合防治方法,通过使树干向上翘 起,并拉开距离,便于通风透光,疏果使蜜柚生长更充分,减少落果率, 配合透气的透明薄膜袋避免病虫接触传播,排水渠和反光地膜配合地势的物 理防治,能够使果园保持干燥和果树底部采光,防止潮湿环境下真菌繁殖 侵染,降低黑星病发病率,除草松土使土质疏松透气,并配合深埋有机肥和 地表无机肥以及低毒杀菌剂、抗菌剂拌料、芸苔素和微肥,提高土壤肥力,干燥地面,有效杀灭果园的细菌真菌病毒,提高果树抵抗力,稳定增产, 配合农药防治,将黑星病发病率降到最低,同时能够防止黑星病进一步扩 散,及时止损,以解决技术中的上述不足之处。
为了实现上述目的,本发明提供如下技术方案:一种蜜柚黑星病综合防 治方法,包括果树治理、土质调节、物理防治和农药防治,所述果树治理 用于蜜柚树树形的整治和果只的生长维护,所述土质调节用于调节土质肥 力和灭菌处理,所述物理防治用于果园的温湿度和采光控制,所述农药防 治用于黑星病病原真菌的灭活处理,具体操作步骤为:
S1:果树治理:对蜜柚树整形,修剪枝干,控制株距和行距使树与树 之间相互不影响,对蜜柚树抽枝处理,并使用拉展辅助件将主干间距离拉 开,在果期对果只进行生长维护,具体如下:
S1.1:在幼果期对蜜柚树疏果,去除稠密和存在瑕疵的小果实,使相 邻两个单果之间留有生长间隙;
S1.2:在果实膨大期前对果只套透明薄膜袋,薄膜袋使用前浸泡农药 杀菌剂、且套袋前对果只喷洒农药杀菌剂,套袋时注意减少果只损伤;
S1.3:透明薄膜袋上留有透气口,在果实成熟转色期去掉透明薄膜袋;
S1.4:在果实生长的整个过程中,观察果实病虫害状况,发现存在黑 星病问题时,及时配合农药防治处理,当黑星病较明显时,去除患病果只;
S2:物理防治:将果园地形整理成中部高两侧低的地势结构,表面平 整处理后,在果园两侧修建排水渠,在树与树之间铺设反光地膜;
S3:土质调节:定期除草松土,松土后深埋有机肥,松土层曝晒两天 后在松土层表面均匀撒上一层无机肥,且有机肥和无机肥在使用前分别使 用低毒杀菌剂和抗菌剂拌料;
S4:农药防治:在花期前15天喷施石硫合剂稀释农药,在花期前后各 喷一次50%多霉灵可湿性粉剂1500倍稀释液,定期喷洒黑星病防治农药稀 释剂,且在该稀释剂中加入小苏打、粘着剂和水性催干剂,喷药时均匀喷 洒,使果面和叶片正反面都能着药,且注意喷洒时间,将叶片间喷透。
优选的,所述S1中修剪蜜柚树整形,使蜜柚树树枝高高架起,株距和 控制在相邻两棵树相互不接触,抽枝处理包括冬季去老枝和春季去多枝, 修剪后将修剪枝条整理成堆,秋季叶落后将树叶收集与枝条一起运出,直 接用于焚烧或者粉碎后投入沼气池,摘除的烂果同样投入沼气池,树叶与 枝条焚烧后收集草木灰备用。
优选的,所述拉展辅助件设置为竹竿和绳子,使用竹竿将树干托起, 使用绳子将下坠树枝上提,使果园底部通风,且拉展辅助件在使用后回收 杀菌处理。
优选的,所述S3中除草周期设置为30天,有机肥埋设深度设置为 20-25cm,且均匀撒开,无机肥设置为草木灰。
优选的,所述低毒杀菌剂设置为甲基托布津,所述抗菌剂设置为重茬 土菌消,所述深埋有机肥时加入芸苔素和微肥。
优选的,所述黑星病防治农药设置为代森锰锌、戊唑醇、烯唑醇、腐 霉利、腈菌唑、嘧菌酯、苯醚甲环唑中的一种及其两种以上混合物,且在 使用时各农药交替使用防治。
优选的,所述粘着剂设置为明胶、所述水性催干剂设置为水性醇酸催 干剂。
优选的,所述黑星病防治农药稀释剂喷洒周期设置为15-18天,且在雨 多季节缩短周期间隔,黑星病防治农药与水、小苏打、粘着剂和水性催干 剂的体积比设置为黑星病防治农药:水:小苏打:粘着剂:水性催干剂=1: 1000:2-3:0.5-1.5:0.3-0.5。
在上述技术方案中,本发明提供的技术效果和优点:
1、通过使树干向上翘起,并拉开距离,便于通风透光,疏果使蜜柚生 长更充分,减少落果率,配合透气的透明薄膜袋避免病虫接触传播,排水渠 和反光地膜配合地势的物理防治,能够使果园保持干燥和果树底部采光, 防止潮湿环境下真菌繁殖侵染,降低黑星病发病率,除草松土使土质疏松透 气,并配合深埋有机肥和地表无机肥以及低毒杀菌剂、抗菌剂拌料、芸苔 素和微肥,提高土壤肥力,干燥地面,有效杀灭果园的细菌真菌病毒,提 高果树抵抗力,稳定增产,配合农药防治,将黑星病发病率降到最低,同 时能够防止黑星病进一步扩散,及时止损;
2、在农药中加入小苏打、粘着剂和水性催干剂,使药液呈弱碱性,粘 着剂和水性催干剂能够使农药快速干燥并在果树和果只上形成保护膜,破 坏真菌活性环境,减少农药浪费,烂果、树叶和枝条有效杀灭病菌后再次 还田增肥,有利于资源合理利用。
具体实施方式
为了使本领域的技术人员更好地理解本发明的技术方案,下面对本发明作 进一步的详细介绍。
本发明提供了一种蜜柚黑星病综合防治方法,包括果树治理、土质调节、 物理防治和农药防治,所述果树治理用于蜜柚树树形的整治和果只的生长 维护,所述土质调节用于调节土质肥力和灭菌处理,所述物理防治用于果 园的温湿度和采光控制,所述农药防治用于黑星病病原真菌的灭活处理, 具体操作步骤为:
S1:果树治理:对蜜柚树整形,修剪枝干,控制株距和行距使树与树 之间相互不影响,对蜜柚树抽枝处理,并使用拉展辅助件将主干间距离拉 开,在果期对果只进行生长维护,具体如下:
S1.1:在幼果期对蜜柚树疏果,去除稠密和存在瑕疵的小果实,使相 邻两个单果之间留有生长间隙;
S1.2:在果实膨大期前对果只套透明薄膜袋,薄膜袋使用前浸泡农药 杀菌剂、且套袋前对果只喷洒农药杀菌剂,套袋时注意减少果只损伤;
S1.3:透明薄膜袋上留有透气口,在果实成熟转色期去掉透明薄膜袋;
S1.4:在果实生长的整个过程中,观察果实病虫害状况,发现存在黑 星病问题时,及时配合农药防治处理,当黑星病较明显时,去除患病果只;
S2:物理防治:将果园地形整理成中部高两侧低的地势结构,表面平 整处理后,在果园两侧修建排水渠,在树与树之间铺设反光地膜;
S3:土质调节:定期除草松土,松土后深埋有机肥,松土层曝晒两天 后在松土层表面均匀撒上一层无机肥,且有机肥和无机肥在使用前分别使 用低毒杀菌剂和抗菌剂拌料;
S4:农药防治:在花期前15天喷施石硫合剂稀释农药,在花期前后各 喷一次50%多霉灵可湿性粉剂1500倍稀释液,定期喷洒黑星病防治农药稀 释剂,且在该稀释剂中加入小苏打、粘着剂和水性催干剂,喷药时均匀喷 洒,使果面和叶片正反面都能着药,且注意喷洒时间,将叶片间喷透。
进一步的,在上述技术方案中,所述S1中修剪蜜柚树整形,使蜜柚树 树枝高高架起,株距和控制在相邻两棵树相互不接触,抽枝处理包括冬季 去老枝和春季去多枝,修剪后将修剪枝条整理成堆,秋季叶落后将树叶收 集与枝条一起运出,直接用于焚烧或者粉碎后投入沼气池,摘除的烂果同 样投入沼气池,树叶与枝条焚烧后收集草木灰备用;
进一步的,在上述技术方案中,所述拉展辅助件设置为竹竿和绳子,使 用竹竿将树干托起,使用绳子将下坠树枝上提,使果园底部通风,且拉展 辅助件在使用后回收杀菌处理;
将同一区域相同环境下四片果园平均规划为四个实验田,分别以常规 黑星病防治方式作为对照组,本技术方案提供的方法为三个新的实施例, 具体如下:
实施例1:
除草周期设置为30天,有机肥埋设深度设置为20cm,且均匀撒开, 无机肥设置为草木灰;
进一步的,所述低毒杀菌剂设置为甲基托布津,所述抗菌剂设置为重茬 土菌消,所述深埋有机肥时加入芸苔素和微肥;
进一步的,所述黑星病防治农药设置为代森锰锌、戊唑醇、烯唑醇、腐 霉利、腈菌唑、嘧菌酯、苯醚甲环唑中的一种及其两种以上混合物,且在 使用时各农药交替使用防治;
进一步的,所述粘着剂设置为明胶、所述水性催干剂设置为水性醇酸催 干剂;
进一步的,所述黑星病防治农药稀释剂喷洒周期设置为15天,且在雨 多季节缩短周期间隔,黑星病防治农药与水、小苏打、粘着剂和水性催干 剂的体积比设置为黑星病防治农药:水:小苏打:粘着剂:水性催干剂=1: 1000:2:0.5:0.3。
本实施例中试验田肥力好,蜜柚树生长旺盛,结出的蜜柚个大皮薄汁甜, 果园通风性好,阳光能够穿透树叶照射到地面,透光性好,蜜柚果能够均匀接 受阳光照射,病虫害发生率低,且能够对资源有效利用,经追踪检测,本实施 例实验田中黑星病抗菌率为86.5%,落果率为2.3%,蜜柚成熟采摘后测得果 实均重为2.8kg,柚子颜色好。
实施例2:
除草周期设置为30天,有机肥埋设深度设置为23cm,且均匀撒开, 无机肥设置为草木灰;
进一步的,所述低毒杀菌剂设置为甲基托布津,所述抗菌剂设置为重茬 土菌消,所述深埋有机肥时加入芸苔素和微肥;
进一步的,所述黑星病防治农药设置为代森锰锌、戊唑醇、烯唑醇、腐 霉利、腈菌唑、嘧菌酯、苯醚甲环唑中的一种及其两种以上混合物,且在 使用时各农药交替使用防治;
进一步的,所述粘着剂设置为明胶、所述水性催干剂设置为水性醇酸催 干剂;
进一步的,所述黑星病防治农药稀释剂喷洒周期设置为16天,且在雨 多季节缩短周期间隔,黑星病防治农药与水、小苏打、粘着剂和水性催干 剂的体积比设置为黑星病防治农药:水:小苏打:粘着剂:水性催干剂=1: 1000:2.5:1:0.4。
对比实施例1,本实施例中试验田肥力好,蜜柚树生长旺盛,结出的蜜柚 个大皮薄汁甜,果园通风性好,阳光能够穿透树叶照射到地面,透光性好,蜜 柚果能够均匀接受阳光照射,病虫害发生率低,且能够对资源有效利用,经追 踪检测,本实施例实验田中黑星病抗菌率为89.8%,落果率为1.1%,蜜柚成 熟采摘后测得果实均重为3.0kg,柚子颜色好。
实施例3:
除草周期设置为30天,有机肥埋设深度设置为25cm,且均匀撒开, 无机肥设置为草木灰;
进一步的,所述低毒杀菌剂设置为甲基托布津,所述抗菌剂设置为重茬 土菌消,所述深埋有机肥时加入芸苔素和微肥;
进一步的,所述黑星病防治农药设置为代森锰锌、戊唑醇、烯唑醇、腐 霉利、腈菌唑、嘧菌酯、苯醚甲环唑中的一种及其两种以上混合物,且在 使用时各农药交替使用防治;
进一步的,所述粘着剂设置为明胶、所述水性催干剂设置为水性醇酸催 干剂;
进一步的,所述黑星病防治农药稀释剂喷洒周期设置为18天,且在雨 多季节缩短周期间隔,黑星病防治农药与水、小苏打、粘着剂和水性催干 剂的体积比设置为黑星病防治农药:水:小苏打:粘着剂:水性催干剂=1: 1000:3:1.5:0.5。
对比实施例1和2,本实施例中试验田肥力好,蜜柚树生长旺盛,结出的 蜜柚个大皮薄汁甜,果园通风性好,阳光能够穿透树叶照射到地面,透光性好, 蜜柚果能够均匀接受阳光照射,病虫害发生率低,且能够对资源有效利用,经 追踪检测,本实施例实验田中黑星病抗菌率为87.4%,落果率为1.4%,蜜柚 成熟采摘后测得果实均重为2.8kg,柚子颜色好。
对照组:
以普通管理方式,即只进行常规的果树治理和农药防治,具体为果树修 剪和代森锰锌农药稀释剂,稀释比例设置为代森锰锌:水=1:1000。
对比实施例1-3,本实施例中试验田肥力好,蜜柚树生长旺盛,结出的蜜 柚个大皮薄汁甜,果园通风性好,阳光能够穿透树叶照射到地面,透光性好, 蜜柚果能够均匀接受阳光照射,病虫害发生率低,且能够对资源有效利用,经 追踪检测,本实施例实验田中黑星病抗菌率为62.3%,落果率为4.8%,蜜柚 成熟采摘后测得果实均重为2.4kg,柚子颜色一般。
根据实施例1-3和对照组得出下表:
Figure BDA0002622190690000081
由上表可知,实施例2中实验田的黑星病抗菌率最高,落果率达到最低值, 收获的果实平均大小最大,能够提高蜜柚的产量,降低病虫害风险,增加果农 收入,另外,治理果树,使其树干向上翘起,拉开相互距离,便于通风透光, 减少黑星病传播概率,疏果使蜜柚生长更充分,减少落果率,配合透气的透 明薄膜袋避免病虫接触传播,排水渠和反光地膜配合地势的物理防治,能够 使果园保持干燥和果树底部采光,防止潮湿环境下真菌繁殖侵染,降低黑星 病发病率,通过土质调节,定期除草松土,使土质疏松透气,并配合深埋有 机肥和地表无机肥以及低毒杀菌剂、抗菌剂拌料、芸苔素和微肥,提高土 壤肥力,干燥地面,有效杀灭果园的细菌真菌病毒,提高果树抵抗力,稳 定增产,配合农药防治,在农药中加入小苏打、粘着剂和水性催干剂,使 药液呈弱碱性,粘着剂和水性催干剂能够使农药快速干燥并在果树和果只 上形成保护膜,破坏真菌活性环境,减少农药浪费,将黑星病发病率降到 最低,同时能够防止黑星病进一步扩散,及时止损,通过沼气池消化烂果 和树叶制备沼渣,焚烧抽树枝条获得草木灰,有效杀灭病菌后再次还田增 肥,有利于资源合理利用。
以上只通过说明的方式描述了本发明的某些示范性实施例,毋庸置疑,对 于本领域的普通技术人员,在不偏离本发明的精神和范围的情况下,可以用各 种不同的方式对所描述的实施例进行修正。因此,上述描述在本质上是说明性 的,不应理解为对本发明权利要求保护范围的限制,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 (8)

1.一种蜜柚黑星病综合防治方法,包括果树治理、土质调节、物理防治和农药防治,其特征在于:所述果树治理用于蜜柚树树形的整治和果只的生长维护,所述土质调节用于调节土质肥力和灭菌处理,所述物理防治用于果园的温湿度和采光控制,所述农药防治用于黑星病病原真菌的灭活处理,具体操作步骤为:
S1:果树治理:对蜜柚树整形,修剪枝干,控制株距和行距使树与树之间相互不影响,对蜜柚树抽枝处理,并使用拉展辅助件将主干间距离拉开,在果期对果只进行生长维护,具体如下:
S1.1:在幼果期对蜜柚树疏果,去除稠密和存在瑕疵的小果实,使相邻两个单果之间留有生长间隙;
S1.2:在果实膨大期前对果只套透明薄膜袋,薄膜袋使用前浸泡农药杀菌剂、且套袋前对果只喷洒农药杀菌剂,套袋时注意减少果只损伤;
S1.3:透明薄膜袋上留有透气口,在果实成熟转色期去掉透明薄膜袋;
S1.4:在果实生长的整个过程中,观察果实病虫害状况,发现存在黑星病问题时,及时配合农药防治处理,当黑星病较明显时,去除患病果只;
S2:物理防治:将果园地形整理成中部高两侧低的地势结构,表面平整处理后,在果园两侧修建排水渠,在树与树之间铺设反光地膜;
S3:土质调节:定期除草松土,松土后深埋有机肥,松土层曝晒两天后在松土层表面均匀撒上一层无机肥,且有机肥和无机肥在使用前分别使用低毒杀菌剂和抗菌剂拌料;
S4:农药防治:在花期前15天喷施石硫合剂稀释农药,在花期前后各喷一次50%多霉灵可湿性粉剂1500倍稀释液,定期喷洒黑星病防治农药稀释剂,且在该稀释剂中加入小苏打、粘着剂和水性催干剂,喷药时均匀喷洒,使果面和叶片正反面都能着药,且注意喷洒时间,将叶片间喷透。
2.根据权利要求1所述的一种蜜柚黑星病综合防治方法,其特征在于:所述S1中修剪蜜柚树整形,使蜜柚树树枝高高架起,株距和控制在相邻两棵树相互不接触,抽枝处理包括冬季去老枝和春季去多枝,修剪后将修剪枝条整理成堆,秋季叶落后将树叶收集与枝条一起运出,直接用于焚烧或者粉碎后投入沼气池,摘除的烂果同样投入沼气池,树叶与枝条焚烧后收集草木灰备用。
3.根据权利要求1所述的一种蜜柚黑星病综合防治方法,其特征在于:所述拉展辅助件设置为竹竿和绳子,使用竹竿将树干托起,使用绳子将下坠树枝上提,使果园底部通风,且拉展辅助件在使用后回收杀菌处理。
4.根据权利要求1所述的一种蜜柚黑星病综合防治方法,其特征在于:所述S3中除草周期设置为30天,有机肥埋设深度设置为20-25cm,且均匀撒开,无机肥设置为草木灰。
5.根据权利要求1所述的一种蜜柚黑星病综合防治方法,其特征在于:所述低毒杀菌剂设置为甲基托布津,所述抗菌剂设置为重茬土菌消,所述深埋有机肥时加入芸苔素和微肥。
6.根据权利要求1所述的一种蜜柚黑星病综合防治方法,其特征在于:所述黑星病防治农药设置为代森锰锌、戊唑醇、烯唑醇、腐霉利、腈菌唑、嘧菌酯、苯醚甲环唑中的一种及其两种以上混合物,且在使用时各农药交替使用防治。
7.根据权利要求1所述的一种蜜柚黑星病综合防治方法,其特征在于:所述粘着剂设置为明胶、所述水性催干剂设置为水性醇酸催干剂。
8.根据权利要求1所述的一种蜜柚黑星病综合防治方法,其特征在于:所述黑星病防治农药稀释剂喷洒周期设置为15-18天,且在雨多季节缩短周期间隔,黑星病防治农药与水、小苏打、粘着剂和水性催干剂的体积比设置为黑星病防治农药:水:小苏打:粘着剂:水性催干剂=1:1000:2-3:0.5-1.5:0.3-0.5。
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