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The Effect of Extracts from Native Species on Invasive English Ivy Applied via Stem Injection
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2017-05
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Alruwaili, Munayfah .pdf
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Native plants are as competitive as invasive species but may require a new strategy persist. As humans spread invasive non-native species and continue to disturb the habitats of native species the non-natives will continue to outcompete the native species. In this study, I employ a new mechanism, stem injection, to investigate allelopathic effects. English ivy stems were injected with native seed (poison ivy, goldenrod, milkweed and snakeroot) extract and goldenrod leaf, roots and entire plant extract. Native extracts significantly inhibited English ivy growth, especially roots. Native seed extract also, inhibited radish and lettuce germination. Allelopathy is one hypothesis to explain this relationship between native and invasive species.