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Economic effects of resistance and withdrawal of organophosphate pesticides on an apple production system

Economic effects of resistance and withdrawal of organophosphate pesticides on an apple production system

Journal of Economic Entomology 86(3): 684-696

Theoretical investigations have suggested that resistance may have severe effects on the long-run economic performance of agricultural production systems. In addition, regulatory withdrawals of critical insecticides may hasten the development of resistance. Given the complexity of the problem, an optimizable bioeconomic simulation was used to examine the economic effects associated with regulation and insecticide resistance in the mid-Atlantic apple production system. Withdrawals of single organophosphates were modeled by reducing the size of a hypothetically complete insecticide control set. Reductions in the size of the insecticide control set led to substantial additional economic losses because of long-term resistance development. Azinphosmethyl withdrawal resulted in an additional - 1.66 billion present value loss and chlorpyrifos withdrawal an additional - 1.91 billion present value loss in economic benefits over a 25-yr period of analysis, whereas a withdrawal of microencapsulated methyl parathion resulted in an additional - 2.47 billion present value loss to resistance over 25 yr. Along with economic effects, insecticide withdrawals also led to changes in the total long-run use of chemical controls, although the magnitude and direction of the change depended on the specific insecticide withdrawn. Overall, results of our study suggest that the effects of interactions between regulation and resistance may lead to severely underestimating the actual benefits associated with a continued chemical registration, especially when using static budgeting analyses as is currently done in the federal regulatory assessment process.

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Accession: 002351771

Download citation: RISBibTeXText

DOI: 10.1093/jee/86.3.684

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