Is there an organic solution to the green worm on my sedums?
Good news-help is on the way for your stressed young plants! If there are just a few caterpillars, picking them off plants by hand and dropping them into a bucket of soapy water is the best solution. If you don't want to touch the insects (and I understand why), combat caterpillars organically with a product called Bt (Bacillus thuringiensis). This product is a naturally occurring bacterium that disturbs the digestive system of the pest until it dies. You'll need to reapply it after every rain and at least every 7-10 days. You can get quicker results by using an insecticide such as carbaryl (Sevin). If you spray only the caterpillars, you will limit harming nearby plants. Both products should be available at your local garden center.
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