An educational program on corn earworm IPM helped growers reduce insecticide applications while maintaining market quality. On-farm demonstration plots using pheromone traps were used to monitor corn earworm moth populations. Monitoring showed that up to three pesticide applications per season could be eliminated. Moth levels varied depending on the geographic location. Growers were taught IPM practices by farm visits, state training meetings, tours to university research farm, and publication of a fact sheet. After they were trained, growers were encouraged to adopt IPM practices by monitoring their own fields and adjusting spray schedules based on CEW moth population levels. A total of 25 growers who manage 400 of sweet corn adopted IPM practices from 1994-1998.
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Olsen et al. (1999) studied this question.
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