|Table of Contents|

Identification of Pathogenic Fungi Causing Rot Disease in Dictyophora rubrovolvata and Study on Fungicide Sensitivity

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2026年6
Page:
91-100
Research Field:
Publishing date:

Info

Title:
Identification of Pathogenic Fungi Causing Rot Disease in Dictyophora rubrovolvata and Study on Fungicide Sensitivity
Author(s):
TANG Yiheng1; 2; CHENG Dandan2; XU Tao2; LI Xiang2; QI Yanjia2; CHEN Mingjun2; 3
(1.Hefei Xinjundao Edible Fungus Industrial Development Co.Ltd.，Hefei,Anhui 231100;2.Anhui Province Key Laboratory of Green Control for Major Forestry Pests，Hefei,Anhui 230036;3.Engineering Research Center of Fungal Biotechnology，Ministry of Education，Anhui Agricultural University，Hefei,Anhui 230036)
Keywords:
Dictyophora rubrovalvata;  Trichoderma hamatum; chemical fungicides; botanical fungicides
PACS:
S436.411
DOI:
10.11937/bfyy.20253198
Abstract:
Taking the rotten Dictyophora rubrovolvata egg samples collected from the cultivation base in Changfeng County,Hefei City,Anhui Province as test material,the pathogenic bacteria were isolated and purified by tissue separation method.Through morphological characteristics observation and EF1-α sequence comparison,the rot disease of Dictyophora rubrovolvata was identified.The inhibitory rate of 10 chemical fungicides and 8 plant-based fungicides on this pathogenic fungus was studied by the mycelium growth rate method,in order to provide a reference for efficient control of the rot disease of Dictyophora rubrovolvata.The results showed that the pathogenic fungus of Dictyophora rubrovolvata was identified as Trichoderma hamatum.Prochloraz,Difenoconazole Propiconazole,Carbendazim and Chlorothalonil exhibited high efficacy against the pathogenic fungus.Among these,45% Prochloraz EW showed optimal performance,maintaining over 80% inhibition rate even at an 8 000-fold dilution concentration.For botanical agents,Magnolol,Carvacrol and Osthole displayed significant antifungal activity.Magnolol achieved a 60% inhibition rate at a low concentration (10 μg·mL-1),with stable efficacy observed across increasing concentrations.The study first proposed that Magnolol has the potential for high-efficiency control of Trichoderma hamatum,and its natural origin offered a novel direction for green disease control strategies.

References:

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Last Update: 2026-04-01