Colletotrichum acutatum : Causal Agent of Olive Anthracnose Isolation, Characterization, and Fungicide Susceptibility Screening in Punjab, Pakistan

Anthracnose of olive fruit caused by Colletotrichum acutatum was a severe epidemic disease in Pakistan that occurred in September 2020. The estimated disease incident was recorded as 59%. Anthracnose causes a significant reduction in yield and quality traits. Anthracnose has been found in several or...

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Veröffentlicht in:Plant disease. - 1997. - 107(2023), 5 vom: 12. Mai, Seite 1329-1342
1. Verfasser: Nawaz, Hafiz Husnain (VerfasserIn)
Weitere Verfasser: Manzoor, Ayesha, Iqbal, Muhamad Zaffar, Ansar, Muhammad Ramzan, Ali, Muhammad, Muhammad Kakar, Khair, Ali Awan, Azmat, Weiguo, Miao
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article C. acutatum EC50 LC50 Pakistan disease incidence disease management fungal growth mycology olive anthracnose mehr... pesticides systemic fungicides Fungicides, Industrial carbendazim H75J14AA89
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520 |a Anthracnose of olive fruit caused by Colletotrichum acutatum was a severe epidemic disease in Pakistan that occurred in September 2020. The estimated disease incident was recorded as 59%. Anthracnose causes a significant reduction in yield and quality traits. Anthracnose has been found in several orchards. Agricultural practices, environmental factors, and disease aggressiveness vary between orchards. Therefore, we looked at spore size, cultural traits, morphological variation, growth pattern, and pathogenicity of different strains of C. acutatum from various orchards. Molecular and phylogenetic analysis confirmed the isolated strains as C. acutatum. In all, 15 C. acutatum isolates from olive orchards were tested for susceptibility to four commercial fungicides (P < 0.001). The examined isolates' in vitro fungicide sensitivity varied with fungicide concentration. The concentration at which conidial germination was hindered by 50% compared with the control values was observed for difenoconazole, tebuconazole, carbendazim, and cyprodinil, ranging from 0.12 to 2.69 g ml-1. Based on the findings of the fungal growth inhibition studies, carbendazim has been found to be the only fungicide that effectively reduces (P < 0.001) anthracnose caused by C. acutatum strains. Additionally, results revealed that preharvest site treatments of different fungicides greatly decreased anthracnose infections on olive fruit (70 to 90%), and postharvest site applications significantly reduced disease prevalence and severity (75 to 95%). The fungicide carbendazim significantly decreased pre- and postharvest anthracnose infection on olive cultivars. This study suggests that the latter compound might be used to control olive anthracnose in Pakistan while lowering environmental impact and fungicide resistance 
650 4 |a Journal Article 
650 4 |a C. acutatum 
650 4 |a EC50 
650 4 |a LC50 
650 4 |a Pakistan 
650 4 |a disease incidence 
650 4 |a disease management 
650 4 |a fungal growth 
650 4 |a mycology 
650 4 |a olive anthracnose 
650 4 |a pesticides 
650 4 |a systemic fungicides 
650 7 |a Fungicides, Industrial  |2 NLM 
650 7 |a carbendazim  |2 NLM 
650 7 |a H75J14AA89  |2 NLM 
700 1 |a Manzoor, Ayesha  |e verfasserin  |4 aut 
700 1 |a Iqbal, Muhamad Zaffar  |e verfasserin  |4 aut 
700 1 |a Ansar, Muhammad Ramzan  |e verfasserin  |4 aut 
700 1 |a Ali, Muhammad  |e verfasserin  |4 aut 
700 1 |a Muhammad Kakar, Khair  |e verfasserin  |4 aut 
700 1 |a Ali Awan, Azmat  |e verfasserin  |4 aut 
700 1 |a Weiguo, Miao  |e verfasserin  |4 aut 
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