The invention discloses an early warning method of
greenhouse vegetable diseases and
insect pests. The method comprises the steps of: firstly, installing an
automatic weather station with the model of PC-3 to automatically detect
greenhouse environment conditions, wherein an
early warning system is used for counting detection results every other 24 hours; secondly, collecting
chlorophyll fluorescence by an
optical fiber spectrograph; thirdly, receiving a
fluorescence spectrum by a
chlorophyll fluorescence spectrum collecting
system,
processing the fluorescence spectrum and inputting to a computer; fourthly, extracting fluorescence spectrum data by the
early warning system; fifthly, further judging the extracted fluorescence spectrum data by the
early warning system; sixthly, displaying the judgment results of the first and second characteristic points of the extracted fluorescence spectrum data by the early
warning system, determining to stop detecting, carrying out the next detection step or classifying diseases and
insect pests, determining the types, the latent period or the severity degree of the diseases and
insect pests; and seventhly, outputting an obtained monitoring result by a monitoring and predicting
system, judging an analyzed and processed result by the early
warning system, displaying and saving the processed result, transmitting a result forming a warning instance to a
warning system so as to complete once warning process.