Research Progress in Monitoring and Forecasting of Crop Diseases and Pests by Remote Sensing

Crop diseases and pests are the first natural biological hazards that threaten food production and quality.The investigation and sampling in field of plant protection department can’t meet demand of the accurate，non-destructive and efficient monitoring and warning.Currently，remote sensing which can monitor dynamically in real time provides the possibility for the rapid acquisition of continuous surface information，and is also the main development direction monitoring and prediction of crop diseases and pests in the future.Research status of three main directions，including classification of different stresses，severity estimation and stress forecasting，are summarized，and the methods of feature extraction，feature selection，and algorithms are expounded.Then，the application of diseases and pests of three major foodsby remote sensing was analyzed by means of domestic retrieval platforms.On this basis，the existing problems and future development trend of monitoring and forecasting of crop diseases and pests by remote sensing are discussed to promotethe long-term mechanism of agricultural sustainable development.