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Coreopsis Plants

Q.bud worms in coreopsis

Anonymous added on June 20, 2015 | Answered

We have these small worms inside our coreopsis buds eating them from the inside. Have had coreopsis for many years and have never had a problem with pests. Can you tell us what to do about them?

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Certified GKH Gardening Expert
Answered on June 21, 2015

This article should help, though it's directed to roses it would still apply to your situation as well: https://www.gardeningknowhow.com/ornamental/flowers/roses/budworms-roses.htm

If it is not budworms but another caterpillar or worm pest attacking your plant, then they can be treated with products containing Bacillus thuringiensis (Bt), a natural bacteria that kill worms without harming plants. Neem oil may be helpful as well. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm

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