The sticky plates of three colors were made out by water-soluble adhesive prepared with carboxymethylcellulose sodium and glycerine as main raw materials,and the field experiment of trapping thrips was carried out in one place of a vegetable garden by different adhesives.Finally the data of this experiment as the training samples and the forecasting samples were analyzed by using BP neural network model.The results showed that the attrahent added had the most weight to the number of entrapped Thrips allioru...