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Extension > Garden > Diagnose a problem > What insect is this? > Garden Pests > Caterpillars, maggots, grubs, and similar immature insects - 1/4 inch - 1/2 inch long > Stalk borer

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Stalk borer

Papaipema nebris

Stalk borer

Jeff Hahn


Size: Up to 1 inch long

Where/When: The larva bores into the stems of a wide variety of herbaceous plants. Active from May until August.

Significance: Infected plants wilt and eventually die.

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