Pathogenesis, Epidemiology, and Control of Colletotrichum Species Infecting Cucurbitaceous Crops: A Comprehensive Review

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Published: Apr 1, 2025
DOI: https://doi.org/10.29070/4cay9639
Keywords:
Colletotrichum, cucurbitaceous crops, anthracnose, fungal pathogens, disease epidemiology, molecular diagnostics, resistance breeding

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Authors

Dr. Priti Singh

Head of Department, Department of Botany, SN Sen BVPG College, Kanpur, U.P.

Abstract

Colletotrichum species are recognized as some of the most devastating fungal pathogens impacting cucurbitaceous crops globally, causing anthracnose disease that results in significant yield and quality losses. These pathogens exhibit a complex taxonomy, with several species complexes such as Colletotrichum orbiculare, C. lagenarium, and C. truncatum being frequently associated with infections in cucurbits like cucumber, watermelon, melon, and pumpkin. The infection process typically begins with the germination of conidia on the host surface, followed by the formation of appressoria, which facilitate penetration into host tissues. Disease development is highly influenced by environmental conditions, particularly humidity and temperature, which affect spore germination and pathogen proliferation. Recent advancements in molecular diagnostics, including PCR-based assays and genome sequencing, have greatly improved the accuracy of pathogen identification and understanding of host-pathogen interactions. Furthermore, efforts in resistance breeding have led to the development of cucurbit cultivars with enhanced resistance to specific Colletotrichum species. Integrated management strategies incorporating cultural practices, resistant varieties, biological control agents such as Trichoderma spp., and targeted fungicide applications are proving effective in reducing disease incidence. The emphasis on sustainable agriculture has further driven research into eco-friendly control measures, offering promising directions for minimizing the impact of Colletotrichum-induced anthracnose in cucurbit production systems.

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Issue

Vol. 22 No. 2 (2025): Journal of Advances in Science and Technology (JAST)

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