Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous Trees > Ribes > Leaves chewed or with holes
Ribes > Leaves > Leaves chewed or with holes
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Imported Currantworm
Nematus ribesii
- Larvae are cream colored and then become green with prominent dark; full grown larvae are one half inch long
- Feed on leaf margins; heavy feeders and rapidly defoliate plants
- Active in May and June
- More information on imported currantworm
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Currant spanworm
Itame ribearia
- Larvae begin feeding on the tips of the leaves and then feed until plant is defoliated
- Feed from late May through June
- Smooth-skinned larvae are bright yellow with white patches and many black spots; 1.25 inch long when fully grown
- Larvae move with looping motion
- Larvae begin feeding on the tips of the leaves and then feed until plant is defoliated
- More information on currant spanworm
