Metarhizium robertsii (IMAGE)

Penn State

Metarhizium robertsii

Caption

Penn State researchers knew the Metarhizium robertsii fungus was deadly to insects such as caterpillars on the ground (victim shown here), but they became more interested when they learned it was taken up by plant roots. Turns out, the fungus boosts both plant growth and plant defenses against pests.

Credit

Nick Sloff

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