You have a caterpillar eating your buds. The easiest, safest solution is to spray the plants with bacillus thuringensis or b.t. This is a bacterium that attacks caterpillars, causing a plague among them. The bacterium is species specific. It is interested in Lepidoptera, not in other animals or humans. It is considered totally safe for food crops.
Days after spraying the plants you will notice a lack of caterpillars around. They have all stopped feeding and died. The bacterium remains active until it is washed off the plant by rain or spray.
There are various brands of it. Dipel has been used with great success. If it is not available at your local nursery, you can order it on the Internet?just enter the word "dipel" into a search engine to find distributors.
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