The Q&A Archives: Aphids on Hibiscus

Question: I bought a hibiscus plant and it is infested with aphids. The nursery sold me some insect control granules but it didn't work at all. The plant looks terrible and the flowers do not bloom completely before they fall off. Any product for the problem?

Answer: Insecticidal soap sprays (several brands are widely available at garden centers) are a good, low-impact way to manage aphids. Mix the soap spray according to label instructions and direct sprays upward from beneath the plants. If the spray is to be effective it must contact the insects which are often hiding on under surface of the leaves. Repeat sprays on a weekly basis as needed. If you use soap spray repeatedly it is a good idea to periodically spray the plants off with water to rinse off any soap residues. Thanks for the question and good luck with your hibiscus plants!

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