Larger Canna Leaf Roller – Identification and Control
Q: What is biting my canna leaves?
A: It’s a canna leaf roller, specifically the larger canna leaf roller, as opposed to the lesser canna leaf roller.
A moth, called the Brazilian skipper, lays her eggs on the canna leaves. When the pests hatch, they stitch the edges of the young leaves together, making a perfect hiding place. Keep an eye on the leaves as they unfurl and pull them apart.
The “bite marks” you see are caused when the caterpillar chews straight through a young leaf before it unrolls.
If you find a grub, flip it onto a surface nearby where a bird can get a snack. If you have too many plants to watch individually, spray the leaves as they unroll with Bacillus thuringiensis (click for sources).
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1
Chinese Quince – Identification
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2
Hercules beetle grub – Large size
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3
Armyworm – Control
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4
Poinsettia – Forcing to Bloom for Christmas
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5
Black Walnut – Selling Wood
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1
Poinsettia – Forcing to Bloom for Christmas
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2
Honey Mushrooms – Identification
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3
Hawthorn – ‘Winter King’
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4
Praying Mantis – Moving an Egg Sack
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5
White Grub – Control in Lawns
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