The use of native Trichoderma strains has been proposed as a sustainable alternative to control cocoa diseases. The aim of this study was to assess indigenous Trichoderma strains from Bagua Province, Peru, with reference to their antagonistic characteristics in vitro and their potential for in vitro biocontrol against frosty pod rot (FPR) disease. A total of 199 strains were assessed for in vitro mycoparasitism, antibiosis, and potential antagonism. The effect of four strains was evaluated in vitro using epidemiological variables, yield, and efficacy at two sites (Copallín and La Peca). Significant differences (p < 0.05) were reported for all variables evaluated in vitro and in vitro. Mycoparasitism ranged from 32% to 100%, antibiosis from 33.36% to 57.92%, and potential antagonism from 42.36% to 78.64%. All strains were found to affect the in vitro-assessed parameters in addition to enhancing the productive yield. The efficiency ranged from 38.99% to 71.9% in Copallín, and 45.88% to 51.16% in La Peca. The CP24-6 strain showed the highest potential for biocontrol under field conditions when considering its effect on both sites.

中文翻译：

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评估木霉属菌种的潜力。巴瓜原产菌株（亚马逊河，秘鲁）在霜冻豆腐（Moniliophthora roreri）的生物防治中

已提出使用天然木霉菌株作为控制可可疾病的可持续替代方法。这项研究的目的是评估秘鲁巴瓜省的本土木霉菌菌株的体外拮抗特性及其对霜冻荚膜腐烂病（FPR）的体外生物防治潜力。总共对199个菌株进行了体外霉菌寄生，抗生和潜在拮抗作用的评估。使用流行病学变量，产量和两个地点（Copallín和La Peca）的功效在体外评估了四种菌株的效果。显着差异（p＜0.05）报道了在体外和体外评估的所有变量。支原体寄生虫的发生率从32％到100％，抗微生物作用从33.36％到57.92％，潜在的拮抗作用从42.36％到78.64％。发现所有菌株除了提高生产产量外，还影响体外评估的参数。科帕林的效率在38.99％到71.9％之间，拉佩卡的效率在45.88％到51.16％之间。考虑到它对两个部位的影响，CP24-6菌株在田间条件下显示出最高的生物防治潜力。