Risk assessment models prove unreliable at predicting which biofuel crops are likely to become invasive

Several of the plants grown as biofuel crops have proved to be invaders in some environments – spreading rapidly and overwhelming surrounding natural ecosystems. Concerns about these weedy tendencies have led many to contend that risk assessments should be conducted before any bioenergy crop becomes widely cultivated. A new study featured in the journal Invasive Plant Science and Management, though, shows that current "gold-standard" weed risk assessment techniques simply aren't up to the task.

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