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Tree Insects

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Updated: March 13, 2026

Aphids in Home Gardens

Learn how to identify and manage aphids on indoor and outdoor plants.
Adult Pea Aphid with two juveniles on a flower petal.
Updated: March 13, 2026

San Jose Scale

Learn how to identify and manage San Jose scale insects.
San Jose scale on a branch
Updated: March 13, 2026

Japanese Maple Scale in Home Landscapes

Learn how to identify and manage Japanese maple scale insects.
heavy infestation of Japanese maple scale
Updated: March 13, 2026

Gloomy Scale

Learn how to identify and manage gloomy scale insects.
Close-up of a gloomy scale on a maple branch.
Updated: March 13, 2026

Soft Scale Insects on Trees and Shrubs

Learn to identify common soft scale insect species and explore their life cycle profiles.
closeup of European Fruit Lecanium Scale on twig
Updated: March 13, 2026

Oak Lecanium Scale

Learn how to identify and manage oak lecanium scale insects.
closeup of oak lecanium scale on twit
Updated: March 13, 2026

European Fruit Lecanium Scale

Learn how to identify and manage European fruit lecanium scale insects.
closeup of European Fruit Lecanium Scale on twig
Updated: March 13, 2026

Calico Scale

Learn how to identify and manage calico scale insects.
Calico scale females on twig
Updated: March 13, 2026

Tuliptree Scale

Learn how to identify and manage tuliptree scale insects.
close up of tuliptree scale
Updated: March 13, 2026

White Prunicola Scale

Learn how to identify and manage white prunicola scale, a non-native armored scale insect that can be difficult to manage.
white prunicola scale on a branch