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Columbine Plants

Q.Caterpillar Repellent on Columbine

Anonymous added on May 5, 2014 | Answered

I just came in after finding little green caterpillars (1/4″) eating on my big beautiful columbine plant! Half the leaves were missing and they were all over the side that had been defoliated. Anyone know what I can quickly mix and spray on them to get them to leave my columbine alone? I cut away the defoliated parts but I am sure, there must still be a caterpillar that I missed. Thanks!

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Certified GKH Gardening Expert
Answered on May 5, 2014

The standard organic treatment for most pests is neem oil and may work on caterpillars too. In addition, Bacillus thuringiensis, also known as Bt, is effective for caterpillars.These articles should help: https://www.gardeningknowhow.com/plant-problems/pests/insects/prevent-caterpillars.htm, https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm

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