Economic impact of integrated pest management
2003
Lee, B.H.
Integrated pest management (IPM) training was assessed through comparison trials of IPM and the farmers' practice on rice from 1996 to 1998. The results of IPM validation studies show that the number of pesticides sprayed can be reduced by 34% to 54% without significant changes in yield. The number of applications and the amount of active ingredients of pesticide were also reduced. The comparison of returns, receipts, and operation costs showed that there were no significant differences because of the savings in pesticide, a result from not mixing unnecessary pesticides at some crop stage. According to the production efficiency analyzed by the nonparametric efficiency analysis model, the efficiency scores of IPM plots were higher, respectively, than those of the farmers' practice plots: 0.5824 vs 0.4192 in 1996, 0.5558 vs 0.5195 in 1997, and 0.6961 vs 0.6281 in 1998. Although IPM implementation by the field-oriented approach was very effective in improving plant protection practices and production efficiency, several contraints must also be examined.
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