{"title":"Field efficacy in controlling mango diseases of antagonist Talaromyces tratensis KUFA 0091 in fresh and dry formulations","authors":"","doi":"10.1007/s10658-024-02853-w","DOIUrl":null,"url":null,"abstract":"<h3>Abstract</h3> <p>The application times and doses of fresh and dry formulations of <em>Talaromyces tratensis</em> KUFA 0091 were evaluated for their antagonistic activity in controlling mango diseases, anthracnose and stem-end rot diseases, under field conditions on two mango cultivars—namely, Nam Dok Mai Si Thong and Nam Dok Mai No. 4. The results show that three applications result in significantly more reduced disease severity than two and one applications. However, a high dose of the fresh formulation at 10<sup>8</sup> spores/ mL of the antagonistic fungus resulted in higher antagonistic activity in controlling mango diseases than the dry formulation and lower doses in both mango cultivars. Treatment of three applications at the flowering, fruit-setting, and fruit-developing stages of the fresh formulation at 10<sup>8</sup> spores/ mL had the best disease reduction at 80%–87%, followed by the dry formulation, which caused 75%–78% disease reduction. Meanwhile, the three applications of fresh and dry formulations at 10<sup>6</sup> spores/mL also displayed significant biocontrol efficacy of 70%–79% disease reduction. Its culture filtrate at 50% completely inhibited the spore germination of the anthracnose pathogen. The dry formulation also showed high efficacy on post-harvest disease in mango fruits. Moreover, the antagonistic fungus showed comparable efficacy with fungicides at a label rate with propineb (1,750 ppm), azoxystrobin (250 ppm), and mancozeb (1,600 ppm). The results indicate that this fungus can act as an effective biological control or be combined with fungicides for integrated mango disease management.</p>","PeriodicalId":12052,"journal":{"name":"European Journal of Plant Pathology","volume":"42 1","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Journal of Plant Pathology","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1007/s10658-024-02853-w","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0
Abstract
The application times and doses of fresh and dry formulations of Talaromyces tratensis KUFA 0091 were evaluated for their antagonistic activity in controlling mango diseases, anthracnose and stem-end rot diseases, under field conditions on two mango cultivars—namely, Nam Dok Mai Si Thong and Nam Dok Mai No. 4. The results show that three applications result in significantly more reduced disease severity than two and one applications. However, a high dose of the fresh formulation at 108 spores/ mL of the antagonistic fungus resulted in higher antagonistic activity in controlling mango diseases than the dry formulation and lower doses in both mango cultivars. Treatment of three applications at the flowering, fruit-setting, and fruit-developing stages of the fresh formulation at 108 spores/ mL had the best disease reduction at 80%–87%, followed by the dry formulation, which caused 75%–78% disease reduction. Meanwhile, the three applications of fresh and dry formulations at 106 spores/mL also displayed significant biocontrol efficacy of 70%–79% disease reduction. Its culture filtrate at 50% completely inhibited the spore germination of the anthracnose pathogen. The dry formulation also showed high efficacy on post-harvest disease in mango fruits. Moreover, the antagonistic fungus showed comparable efficacy with fungicides at a label rate with propineb (1,750 ppm), azoxystrobin (250 ppm), and mancozeb (1,600 ppm). The results indicate that this fungus can act as an effective biological control or be combined with fungicides for integrated mango disease management.
摘要 在两个芒果栽培品种（即 Nam Dok Mai Si Thong 和 Nam Dok Mai No. 4）的田间条件下，对 Talaromyces tratensis KUFA 0091 新鲜制剂和干制剂的施用时间和剂量进行了评估，以确定其在防治芒果病害（炭疽病和茎端腐烂病）方面的拮抗活性。结果表明，施用三次药剂比施用两次和一次药剂能明显减轻病害的严重程度。然而，在两种芒果栽培品种中，高剂量（108 个孢子/毫升）的新鲜制剂比干制剂和低剂量的拮抗真菌在控制芒果病害方面具有更高的拮抗活性。在开花期、坐果期和果实发育期三次施用 108 个孢子/毫升的新鲜制剂，病害减少率最高，为 80%-87%，其次是干制剂，病害减少率为 75%-78%。同时，106 个孢子/毫升的新鲜制剂和干制剂的三次施用也显示出显著的生物防治效果，病害减少率为 70%-79%。其 50%的培养滤液可完全抑制炭疽病病原体孢子的萌发。干制剂对芒果采后病害也有很高的防治效果。此外，这种拮抗真菌的药效与丙溴苯（1750 ppm）、唑啉草酯（250 ppm）和锰锌（1600 ppm）等杀菌剂的药效相当。研究结果表明，这种真菌可作为一种有效的生物防治手段，或与杀菌剂结合使用，用于芒果病害的综合防治。
期刊介绍：
The European Journal of Plant Pathology is an international journal publishing original articles in English dealing with fundamental and applied aspects of plant pathology; considering disease in agricultural and horticultural crops, forestry, and in natural plant populations. The types of articles published are :Original Research at the molecular, physiological, whole-plant and population levels; Mini-reviews on topics which are timely and of global rather than national or regional significance; Short Communications for important research findings that can be presented in an abbreviated format; and Letters-to-the-Editor, where these raise issues related to articles previously published in the journal. Submissions relating to disease vector biology and integrated crop protection are welcome. However, routine screenings of plant protection products, varietal trials for disease resistance, and biological control agents are not published in the journal unless framed in the context of strategic approaches to disease management.
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