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

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Table Legend

* 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. Wait 10 to 14 days between applications in cool weather and 7 to 10 days between applications in warm weather.

D = Drench or Granular application; S=Spray application.

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

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The Pyracantha 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.
• Green Apple Aphid / Spirea Aphid. Walgenbach, J. 2015. NC State Extension Publications.
• Lace Bugs, Frank, S. D. and S. Bambara. 2019 (revised). Entomology Insect Notes. NC State Extension Publications.
• Leaf Crumpler. Baker, J. R. 2019 (revised). PDIC Factsheets, NC State Extension Publications.
• Southern Red Mite and Spruce Spider Mite. Frank, S. et al. 2019 (revised). Entomology Insect Notes, NC State Extension Publications.
• Woolly Apple Aphid on Ornamentals. Baker, J. R. 2019 (revised). PDIC Factsheets, 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 Cooperative Extension Center.

This Insect Note has not been peer reviewed.

* 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. ↲