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Rhododendron Pest Management Calendar

The Rhododendron Pest Management Calendar give approximate dates for pest emergence.

* Degree of importance of pest: I = Important pest, high probability of occurrence; II = Treat as needed; III = Occasional pest, treat when detected.

** Number of applications needed for most effective control. It is usually best to wait 10 to 14 days between applications in cool weather and 7 to 10 days between applications in warm weather.

G = Granular (or drench) application; P = Prune out infested stem; S=Spray application.

Other Resources

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For assistance with a specific problem, contact your local Cooperative Extension Center.

This Insect Note has not been peer reviewed.


Professor and Extension Specialist
Entomology & Plant Pathology
Professor Emeritus
Entomology & Plant Pathology

Find more information at the following NC State Extension websites:

Publication date: Feb. 4, 2019
Revised: Oct. 11, 2019

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