This information was developed for North Carolina and may not apply to other areas.

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Legend

* Degree of importance of pest: I=Important pest with a high probability of occurrence, II=Treat as needed.

** 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.

S = Spray application.

The Maple Pest Management Calendar gives approximate dates for pest emergence.

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The Maple Pest Management Calendar gives approximate dates for pest emergence.

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• Aphids on Ornamental Landscape Plants. Frank, S. 2019 (revised). Entomology Insect Notes, NC State Extension Publications.
• Armored Scale Identification and Management on Ornamental Plants. Frank, S. 2022 (revised). Entomology Insect Notes, NC State Extension Publications.
• Caterpillars That Feed on Trees and Shrubs. Frank, S. and S. Bambara. 2009. Entomology Insect Notes, NC State Extension Publications.
• Gloomy Scale, Melanaspis tenebricosa (Comstock), Hemiptera: Diaspididae. Frank, S. and A. Dale. 2019 (revised). Entomology Insect Notes, NC State Extension Publications.
• Greenstriped mapleworm. Frank, S. and A. Dale. 2019 (revised). Entomology Insect Notes, NC State Extension Publications.
• Horticultural Oils for Ornamental Plants. Frank, S. et al. 2023 (revised). Entomology Insect Notes, NC State Extension Publications.
• Extension Plant Pathology Publications and Factsheets
• Horticultural Science Publications
• North Carolina Agricultural Chemicals Manual

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

This Insect Note has not been peer reviewed.

The Maple Pest Management Calendar gives 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. ↲