Field sites needed to determine better strategies for managing roof rats in citrus orchards

Having problems with roof rats in your citrus orchards?  The University of California (UC) Cooperative Extension and UC Davis are engaging in a two-year study designed to develop an effective management program for removing roof rats from these orchards, but we need your help.  Starting in February 2020, we will need 5 orchards to begin testing approaches for monitoring roof rat activity in orchards.  We will also determine movement patterns of roof rats in orchards to determine where rats are spending their time and how far they move daily.  This information will provide the framework to then test the efficacy of various management tools for removing roof rats from orchards, which will hopefully start in January 2021.  If you are potentially interested in participating in this study, please contact Ryan Meinerz for additional details (; 530-300-5002).

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