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Evaluating Trap Efficiency and Spotted Lanternfly (Lycorma Delicatula) Distribution Across Native and Invasive Tree Species at Purchase College
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Jackson, Allyson K.
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Spring 2025
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2025
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9960_David_Reden.pdf
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The Spotted Lanternfly (Lycorma delicatula) poses significant threats to ecosystems and economies. These pests damage crops like grapes, hardwood trees, and other local wildlife due to their rapid spread in urban and agricultural areas. This research sought to determine the effectiveness of the trap in its ability to capture SLF, compare the population of bycatch captured to SLF caught, and to examine where and to what extent SLF was distributed across different tree species and types (native vs. invasive) at SUNY Purchase College. Thirty traps were set, with 15 placed on invasive trees (Japanese Zelkova, Norway Maple, and Callery Pear) and 15 placed on native trees (Black Birch, Red Maple, and Shagbark Hickory)
My result revealed that invasive trees attract higher populations of both nymph and adult SLF than native trees. Adults SlF preferred native tree more than nymphs, and traps were more effective when placed on invasive trees. While the bycatch rate was also higher for invasive trees, statistical tests indicated no significant difference in bycatch between invasive and native tree areas, suggesting that both tree types support similar insect diversity. These results emphasize that tree type and composition significantly influence the abundance and distribution of SLF. Targeting only invasive trees could be an effective strategy for controlling SLF populations on the SUNY Purchase campus, as it creates room for managing SLF using invasive tree species.
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