Plant Fungal Diseases and Crop Protection, Second Edition

Fungal pathogens constitute the largest group of plant disease agents, infecting crops through leaves, seeds, and soil, and causing substantial losses in agricultural productivity worldwide. Their diverse infection strategies, together with the complexity of host–pathogen–environment interactions, continue to challenge effective disease management and highlight the need for innovative and sustainable control approaches. Progress in this field depends on a clearer understanding of the fungi involved, the crop developmental stages most susceptible to infection, and the environmental factors that drive disease onset and progression. In parallel, increasing public concern over the extensive use of synthetic chemicals, along with the growing emergence of fungicide-resistant strains, has intensified interest in alternative and environmentally friendly strategies [1,2].
This Special Issue was established to highlight recent advances in the understanding of plant fungal diseases and the development of more effective, integrated, and sustainable crop-protection strategies. The papers brought together in this collection reflect the breadth of the field, spanning antagonistic fungi, biological control, resistance breeding, stress-associated symbioses, fungicide sensitivity monitoring, epigenetic regulation of host susceptibility, and innovative fungicide-delivery systems. Collectively, they illustrate how progress in crop protection increasingly depends on combining fundamental biological insight with practical disease-management tools.