Hawaii introduced strawberry guava from Brazil in the 1800s for its edible fruit, but scientists now say the invasive tree has spread across the islands, forming dense forests that crowd out native plants, block seedling growth and transform native rainforest understories

The islands of Hawaii are currently threatened by an ecological menace in the form of a garden plant gone wild. The strawberry guava, which was planted on the islands because of the delicious fruit that it produces, is wreaking havoc upon the native forests and writing a new future for the islands’ woodlands.

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