Plants are mainly affected by pathogens (bacteria, viruses, fungi, etc.) that are always the threat to growers. Most effective way of approach is to identify plant diseases accurately as early as possible.
Some of the commonly used detection methods are,
- Thermography method– detected temperature change intimates abnormal respiration of plant leaves and canopies.
- Hyperspectral method– changes in the plant reflectance on void will signify the disease presence.
- Gas chromatography (GC)– it will identify the VOC(volatile organic compounds) within the plant cell to track back the disease’s existence.
- Fluorescent imaging– chlorophyll fluorescence of the leaves are undertaken for changes in electron transport reactions and photosynthesis for detection.
- Biosensor detection– the biochemical, electrical or vibrational signal changes in biosensors (enzymes, antibodies and nucleic acids) potentially indicate plant diseases.