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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 > Imported currantworm

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Imported currantworm

Nematus ribesii

Imported currantworm

Jeff Hahn

Size: Up to 3/4 inch long

Where/When: Feeds on currants and gooseberry. The larvae are active in May and June.

Significance: They feed on the leaves, sometimes severely defoliating plants. They are generally not a common problem in Minnesota gardens, although they can become abundant in localized sites.

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