John da Graça
A5037728473- Vector-Borne Animal Diseases
- Insect-Plant Interactions and Control
- Respiratory viral infections research
- Plant and Fungal Interactions Research
- Banana Cultivation and Research
- Plant Pathogens and Fungal Diseases
- Viral Infections and Vectors
- Mosquito-borne diseases and control
- Plant Pathogenic Bacteria Studies
- Insect and Pesticide Research
- Nematode management and characterization studies
- Insect symbiosis and bacterial influences
- Animal Virus Infections Studies
- Plant Virus Research Studies
- Insect behavior and control techniques
- Phytoplasmas and Hemiptera pathogens
- Viral gastroenteritis research and epidemiology
- Plant and animal studies
Texas A&M University – Kingsville
2018-2024
Early detection and rapid response are crucial to avoid severe epidemics of exotic pathogens. However, most methods (molecular, serological, chemical) logistically limited for large-scale survey outbreaks due intrinsic sampling issues laboratory throughput. Evaluation 10 canines trained a phytobacterial arboreal pathogen, Candidatus Liberibacter asiaticus (CLas), demonstrated 0.9905 accuracy, 0.8579 sensitivity, 0.9961 specificity. In longitudinal study, cryptic CLas infections that remained...
This collaborative work by over 180 researchers from 40+ countries addresses the challenges posed “phantom agents”—putative pathogenic agents named in literature without supporting data on their existence. Those remain regulatory lists, creating barriers trade and plant certification. Historically identified based solely symptoms, these lack isolates or sequence data, making reliable detection risk assessment impossible. After reviewing 120 such across 10 key genera, we recommend removal...