Garlic mustard is an invasive plant species in North American temperate forests.Garlic mustard secretes an allelochemical that interferes with relationships between native tree roots and their mycorrhizal fungi.This would be an example of

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Garlic mustard secreting an allelochemical that interferes with the relationships between native tree roots and their mycorrhizal fungi is an example of interference competition, as it directly interferes with the ability of other plant species to establish and maintain relationships with mutualistic fungi. Exploitative competition involves one species getting access to resources faster, leaving less for other species, but in this case, garlic mustard is actively inhibiting other species' access to resources.

Garlic Mustard Is an Invasive Plant Species in North American