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Surveying establishment success: A capstone survey of <i>Floracarus perrepae</i> and <i>Neomusotima conspurcatalis</i> on <i>Lygodium microphyllum</i>

Published by Agricultural Research Service | Department of Agriculture | Catalog Last Checked: August 01, 2026 at 04:50 AM | Dataset Last Updated: June 01, 2026
We started an establishment survey in July of 2023 to understand where the biological control agents have successfully established and/or dispersed. Study sites were chosen throughout Lygodium microphyllum’s invaded range based on iNaturalist and EDDMaps observations. Two surveys were conducted, one for each biological control agent.​ For Floracarus perrepae 5 points were selected at an interval of at least 10 meters. At each point, 3 samples of 2 fully expanded sub pinnae pairs were collected haphazardly. These samples were brought back to the lab, the number of galls were counted, and a subset of 25 galls were dissected to determine how many mites were in each gall. For Neomusotima conspurcatalis two surveyors non-systematically explored the L. microphyllum patch for 15 minutes (for a total of 30 minutes) looking for and inspecting for feeding damage, larvae, and adults.​Partially funded by the USDA through the Comprehensive Everglades Restoration Plan (CERP) (USDA agreement 58-6032-1-001) and through the Southwest Florida Water Management District (USDA agreement 58-6032-3-003)

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