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首页> 外文期刊>Acta Horticulturae >Chemical and cultural management of die back disease of mango in Pakistan
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Chemical and cultural management of die back disease of mango in Pakistan

机译：巴基斯坦芒果致死病的化学和文化管理

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Die back of mango is very destructive disease caused by Lasiodiplodia theobromae which is alarming mango growers of Pakistan with its characteristic symptoms as discoloration and darkening of twigs from tip to downward, withering, drying and defoliation. Investigations to effectively manage the disease using fungicides and other options were carried out in vitro as well as in experimental orchard of Mango Research Station Shujabad Multan, Pakistan during 2011-2012. The experimental fungicide treatments were Cobox (Copper oxychloride), Precure combi (Thiophanate methyl + dietheofenocarb) and Cabrio top (Pyraclostrobin + metiram) at four concentrations 25, 50, 75 and 100 ppm. Firstly, these chemicals were evaluated for their control of L. theobromae in vitro. Cobox (Copper oxychloride) and Precure combi (Thiophanate methyl + dietheofenocarb) showed significant reduction in colony diameter of L. theobromae at all concentrations compared to non-treated/control. Cabrio top (Pyraclostrobin + metiram) didnot significant decrease the colony diameter of L. theobromae. In the field Precure combi (Thiophanate methyl + dietheofenocarb) and Cobox (Copper oxychloride) were also used as foliar, soil drenching in addition with soil amendment with silt, NPK & manure and pruning to manage the naturally affected mango plants with die back. It was found that maximum decrease in disease over control (72.92%) was noted where soil amendment and pruning was done with soil drenching of Cobox. This treatment may be included in the holistic disease management program against the die back of mango.
机译：芒果死是由Lasiodiplodia theobromae引起的极具破坏性的疾病，该疾病使巴基斯坦的芒果种植者感到震惊，其典型症状是从顶端到向下的嫩枝变色和变暗，枯萎，干燥和脱叶。在2011年至2012年期间，对巴基斯坦舒加巴德穆坦芒果研究站的实验果园以及体外试验果园进行了使用杀菌剂和其他方法有效控制该病的研究。实验性的杀菌剂处理是分别以25、50、75和100 ppm的四种浓度进行的Cobox（三氯氧化铜），Precure combi（硫氰酸甲酯+二硫代氨基甲酸）和Cabrio top（吡菌酯+甲吡兰）。首先，评估这些化学药品在体外对Theobromae的控制。与未处理/对照相比，在所有浓度下，Cobox（三氯氧化铜）和Precure combi（噻吩甲酸酯甲基+二硫代甲威）均显示出Theobromae菌落直径明显减小。敞蓬顶（绝热曲霉+美拉m）没有显着减小嗜血杆菌的菌落直径。在该领域中，Precure combi（噻吩甲酸酯甲基+二硫代甲威）和Cobox（氯氧化铜）还被用作叶面，土壤淋湿，除泥，NPK和肥料的土壤改良剂以及修剪，以管理自然死亡的芒果植株。发现在通过Cobox的土壤浸润进行土壤改良和修剪的情况下，注意到疾病比对照的最大减少（72.92％）。可以将这种治疗包括在针对芒果死亡的整体疾病管理计划中。

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