CN101946799A - 咪鲜胺锰盐与丙森锌组合杀菌剂 - Google Patents
咪鲜胺锰盐与丙森锌组合杀菌剂 Download PDFInfo
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Abstract
本发明涉及一种咪鲜胺锰盐和丙森锌组合杀菌剂，用于防治黄瓜炭疽病。采用咪鲜胺锰盐、丙森锌按1∶1～5的重量比加适量的助剂组合成杀菌剂，提高了药剂增效作用和防治效果。本发明具有综合防治效果好，用药量小，成本低等优点。同时咪鲜胺锰盐与丙森锌分别含有植物生长的必须的锰、锌微量元素，施用后对改善植物生长非常有利。
Description
技术领域
该发明涉及到的农药组合物，是以咪鲜胺锰盐与丙森锌为有效成分，防治黄瓜炭疽病，属于农药化工领域。
背景技术
咪鲜胺锰盐：为咪鲜胺-氯化锰，属咪唑类广谱性杀菌剂。该药通过抑制甾醇的生物合成而起作用，对子囊菌及半知菌引起的多种农作物病害有良好的防治效果。与咪鲜胺相比，该药的安全性高，不易产生药害。适用于蘑菇褐腐病和褐斑病，芒果炭疽病，柑橘青霉病、绿霉病、炭疽病、蒂腐病，香蕉炭疽病、黄瓜炭疽病等。
丙森锌：是一种速效、残效期长、广谱的保护性杀菌剂，对蔬菜、烟草、啤酒花等作物的霜霉病以及番茄和马铃薯的早、晚疫病均有良好的保护作用。可防治白菜霜霉病、黄瓜霜霉病、番茄早晚疫病、芒果炭疽病。并且对白粉病、锈病和葡萄孢属病菌引起的病害也有一定的抑制作用。在推荐剂量下对作物安全。
在农业生产实际过程中，一种植物病害往往由几种病菌所致，加之发病的时间也不一样，单用一种药剂防治效果不可能取得最佳，且又容易产生抗性问题。克服的最经济有效的方法之一是不同的品种的有效成分进行复配，特别是使用保护性杀菌剂，对植物进行有效的保护，减轻病害的侵害，取得最佳的防治效果。复配时可根据实际试验效果来判断该组合杀菌剂是增效、加和、还是拮抗。复配增效很好的配方，由于明显提高了综合防治效果，降低了农药使用量，从而大大的延缓了病害抗药性的产生，实现一药多防的目的。同时咪鲜胺锰盐与丙森锌分别含有植物生长的必须的锰、锌微量元素，施用后对改善植物生长非常有利。
发明内容
为防治黄瓜炭疽病，本发明提供了一种咪鲜胺锰盐、丙森锌组合杀菌剂。
为了实现上述目的，本发明的技术方案是由咪鲜胺锰盐、70％丙森锌可湿性粉剂、丙酮、吐温80、纯水等组成。
固体咪鲜胺锰盐与丙森锌按1∶1～5的重量比，组合剂中咪鲜胺锰盐与丙森锌累积重量为40％～70％。
本发明具有增效显著，综合防治效果好，用药量小，成本低等优点，且施用后植物补锰又补锌。
具体实施方式
用丙酮和吐温80将咪鲜胺锰盐溶解后，和70％丙森锌可湿性粉剂按照咪鲜胺锰盐与丙森锌有效成分重量比分别为1∶1、1∶1.5、1∶2、1∶2.5、1∶3一起加适量纯水配成母液。母液共配置5组，每组再配制为0.0125、0.025、0.05、0.1、0.2、0.4mg/kg浓度的药液。将黄瓜炭疽病菌接种在PDA培养基上，25℃下培养7天备用。在无菌条件下，将供试菌种用0.5cm的打孔器打菌饼。根据剂量发计，将药液加入到熔化的培养基中摇匀，制成带药的培养基平板，培养基冷却后菌丝向下贴于平皿中央，25℃下恒温培养。设空白对照(只喷清水加溶剂和表面活性剂，不施药剂)。待空白菌落长至2/3平皿时，用直尺测量菌落直径，十字交叉2次，取平均值，按下式计算相对抑菌率。
菌落直径(cm)＝测量的菌落直径-0.50
相对抑菌率(％)＝(对照菌落直径-处理菌落直径)×100/对照菌落直径
求出EC50、EC90、毒力回归方程、相关系数及共毒系数，以共毒系数值判断嘧菌酯和粉唑醇对黄瓜白粉病的联合毒力作用，共毒系数值在80～120左右为相加作用，明显小于80时为拮抗作用，明显大于120时为增效作用。
咪鲜胺锰盐、丙森锌对黄瓜炭疽病的室内配方筛选试验结果
应用实例一：黄瓜炭疽病
咪鲜胺锰盐20％，丙森锌30％，加适量的助剂和填料制成50％可湿性粉剂。该配方按0.4mg/kg的浓度喷雾，防治效果为66.26％。对照药咪鲜胺锰盐用0.4mg/kg浓度使用，防效分别为68.67％，丙梦锌按80mg/kg的浓度喷施，防效为50.60％。
应用实例二：黄瓜炭疽病
咪鲜胺锰盐20％，丙森锌30％，加适量的助剂和填料制成70％可湿性粉剂。该配方按0.4mg/kg的浓度喷雾，防治效果为67.46％。对照药咪鲜胺锰盐用0.4mg/kg浓度使用，防效分别为68.67％，丙梦锌按80mg/kg的浓度喷施，防效为50.60％。
Claims (2)
1.一种咪鲜胺锰盐与丙森锌组合杀菌剂，其特征在于固体咪鲜胺锰盐与丙森锌的组合重量比为在1∶1～5。
2.权利要求1中所述的咪鲜胺锰盐与丙森锌组合杀菌剂，其特征在于组合剂中咪鲜胺锰盐和丙森锌累积的质量百分含量在40％-70％。
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105475356A (zh) * | 2015-12-08 | 2016-04-13 | 陕西省蒲城美尔果农化有限责任公司 | 一种含丙森锌和咪鲜胺锰盐的农药组合物 |
| CN105764342A (zh) * | 2013-09-20 | 2016-07-13 | 拜耳作物科学股份公司 | 活性化合物结合物 |
| CN108522528A (zh) * | 2018-05-29 | 2018-09-14 | 青岛农业大学 | 一种新型水稻专用叶面喷施药肥 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105764342A (zh) * | 2013-09-20 | 2016-07-13 | 拜耳作物科学股份公司 | 活性化合物结合物 |
| CN105764342B (zh) * | 2013-09-20 | 2021-07-02 | 拜耳作物科学股份公司 | 活性化合物结合物 |
| CN105475356A (zh) * | 2015-12-08 | 2016-04-13 | 陕西省蒲城美尔果农化有限责任公司 | 一种含丙森锌和咪鲜胺锰盐的农药组合物 |
| CN108522528A (zh) * | 2018-05-29 | 2018-09-14 | 青岛农业大学 | 一种新型水稻专用叶面喷施药肥 |
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