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Abstract
Survey data from Southeastern Pennsylvania
is used to estimate the costs of current mushroom
pest management practices. Pest management costs
represent a sizeable proportion of the variable
costs of producing mushrooms. 'The practices
found are highly variable with costs ranging from
$ . 04 to $ • 58 per square foot. 'The frequency of
outside applications and steam use before and
after the crop are the most significant practices
influencing production costs.