Vol. 8, Special Issue 11, Part J (2024)

Plant pathogens, including fungi, nematodes, algae, and phytoplasmas, pose significant challenges to global agriculture, causing severe crop losses and threatening food security. This review explores the diversity, pathogenic mechanisms, and agricultural impact of these pathogen groups. Fungi, the most prevalent pathogens, induce diseases like rusts and mildews, while nematodes parasitize roots, impairing nutrient and water uptake. Algal pathogens, though less common, affect crops in tropical regions, and phytoplasmas, transmitted by insect vectors, disrupt plant growth and productivity.
The article highlights advancements in diagnostic tools, such as molecular techniques, biosensors, and AI-powered imaging, which have revolutionized pathogen detection and management. It also emphasizes the role of biotechnological innovations, including RNA interference and transgenic crops, in developing sustainable control measures. Integrated approaches combining cultural practices, biological control, and precision agriculture are crucial for effective disease management.
Addressing challenges such as pathogen resistance, multi-pathogen interactions, and climate change impacts requires collaborative efforts in research, policymaking, and farmer engagement. By leveraging technological advancements and promoting sustainable practices, plant pathology can play a vital role in ensuring agricultural resilience and food security in the face of evolving threats.