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19 cze 2023 · The euonymus scale is a key pest of deciduous and evergreen euonymus, Euonymus spp., pachysandra, Pachysandra spp., and bittersweet, Celastrus spp. Vine-type euonymus are extremely susceptible to attack by this scale. This armored scale insect is native to Japan and China.
Euonymus scales are small, sap feeding pests found on burning bush, winter creeper, English ivy, holly, honeysuckle, lilac, and pachysandra. Female scales are 1/16th of an inch, oyster-shaped, and brown, while males are 1/32nd of an inch and white.
Some scales have two (e.g. eastern strains of pine needle scale, Fetcher scale) or more (e.g. euonymus scale, San Jose scale) generations each year, depending on location. A good monitoring program is critical for determining the period of crawler activity.
Euonymus Scale, Unaspis euonymi, is a pest of many ornamentals and one of the most damaging on evergreen species of Euonymus. Early feeding damage is indicated by yellow or white spots on leaves which may be pink on variegated types.
6 dni temu · Euonymus scale is the most commonly reported insect pest of euonymus, pachysandra and celastrus in North Carolina. Female scale feed by inserting microscopic, thread-like mouth parts into the plant and sucking out fluids.
The euonymus scale, Unaspis euonymi, is an armored scale that can cause complete defoliation or even death of the evergreen Euonymus. This scale also attacks a number of other plants such as English ivy, hibiscus, holly, honeysuckle, lilac, and pachysandra.
17 paź 2024 · Euonymus scale (Unaspis euonymi) is a non-native type of armored scale insect. They can be difficult to manage as their waxy body covering shields them from predators and certain pesticides. Learn more about scale insect groups, biology, and management on our Introduction to Scale Insects page.
