Canna – Holes in Leaves

Q: Any idea what could be eating these? Only one caterpillar was found on one leaf.
A: I think the culprit is the larger canna leaf roller. Its adult form is a small skipper moth, which lays eggs on the canna leaf. When an egg hatches, the caterpillar uses silk to pull the edge of a leaf over itself, thus making a leaf roll in which to hide.
As the creatures grow larger, they feed heavily on canna leaf tissue. Many times the “roll” will come apart and the caterpillar will start again, which leads to lots of leaf damage.
The easiest control is to visit your flowers every few days and use your fingers to unroll any leaf flaps you find. Flick the caterpillars off the leaf and make a nearby bird happy to have a tasty snack.
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January is typically the coldest winter month. Still, you can accomplish such garden tasks as sharpening...
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Soil Spring Summer Seed Winter Fall Flowers Weed Fertilizer Disease Shade Temperature Pine Pots Oak Mulch Pruning Watering Container Maple Compost Herbicide Birds Moisture Tomatoes Azalea Poison Pears Hydrangea Glyphosate Cherry Caterpillar Pests Roundup Irrigation Pre-Emergent Stone Pesticide Dogwood Peach Pine Straw Spider Greenhouse Magnolia Squash Beans Squirrels Poisonous Travel Lemon
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Walter’s Bookshelf
Browse and purchase gardening books by Walter Reeves, plus select titles by other authors.
View books -
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January calendar
January is typically the coldest winter month. Still, you can accomplish such garden tasks as sharpening...
Get The Checklist
-
-
Popular topics
Soil Spring Summer Seed Winter Fall Flowers Weed Fertilizer Disease Shade Temperature Pine Pots Oak Mulch Pruning Watering Container Maple Compost Herbicide Birds Moisture Tomatoes Azalea Poison Pears Hydrangea Glyphosate Cherry Caterpillar Pests Roundup Irrigation Pre-Emergent Stone Pesticide Dogwood Peach Pine Straw Spider Greenhouse Magnolia Squash Beans Squirrels Poisonous Travel Lemon