Optimization chemical control in integrated pest management

This paper considers optimization chemical control in integrated pest management. The impulsive models of the pest management consisting of the spaying pesticides and the pesticide effect of crops are established and analyzed. Making use of the optimal control theory to solve the optimal dosages of the pesticides and the time intervals with spaying pesticides. Thus, given an optimal pest management strategy of the chemical control, which makes pesticide residuals and the total dose of the spraying pesticides least, and pest populations, can maintain the level below the economic threshold. Finally, the simulation result shows the strategy is viable and effectively.