What's eating my Canna?


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This little guy send to be doing a good number on my Canna. I though maybe they were disease, but I'm seeing a lot of his evidence on damaged leaves now. They get into a new leaf and it gets sealed shut and then starts to rot, causing the dead sections over it does unroll. Today I opened one such leaf and caught what I hope of the culprit.

Can someone identify this guy and tell me how to be rid of him? Neem oil, spinosad?
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This little guy send to be doing a good number on my Canna. I though maybe they were disease, but I'm seeing a lot of his evidence on damaged leaves now. They get into a new leaf and it gets sealed shut and then starts to rot, causing the dead sections over it does unroll. Today I opened one such leaf and caught what I hope of the culprit.

Can someone identify this guy and tell me how to be rid of him? Neem oil, spinosad?
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What you have chomping on your plant is called a leaf roller. To be exact it is a Lesser Canna Lily Leaf Roller. There are all kinds of leaf rollers and they will attack just about anything. A moth flies in at night lays its eggs and when the egg hatches you have this little caterpillar.. There are two treatments for leaf rollers. The first treatment is difficult because you don't know when the moth arrives and lays its eggs, so, multiple applications of Neem is required. The second treatment is for when the eggs have hatched and there are actual caterpillars and you spray a Bt (Bacillus thuringensis) product on BOTH sides of the leaves.

https://www.gardeningknowhow.com/plant-problems/pests/insects/leafroller-damage-control.htm
 
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Thanks @Chuck sounds like a two pronged approach. Neem in the evening, BT in the morning. I'll give it a shot.
 

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