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Regional Management Strategies in Stochastic Systems

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A simulation model is develloped for an insect population distributed over a region of 100 areas. Five-year simulations were used to simulate the number of insects, number of insecticide treatments, and cost/benefit ratios for four different management strategies and three different redistribution protocols for the insect population. Simulations included a stochastic element affecting insect population growth; separate simulations were conducted with different degrees of variance in the stochastic process. The management strategy that provided optimal suppression or cost! benefit ratio varied with different movement, or redistribution, protocols in the pest population. System variance had significant impact on cost/benefit ratios as well as on numbers of insects and treatments occurring in the system. The mean and the variance of cost/benefit ratios increased as system variability decreased.

Document Type: Research Article

Publication date: January 1, 1987

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