Taken together, these data suggest that several species may be masquerading under the label Lepidosaphes ulmi. Economic importance: The. Lepidosaphes ulmi (L.) Hanson, T., and E. B. Walker. [n.d.] Field guide to common insect pests of urban trees in the Northeast. Waterbury, VT: Department of. Lepidosaphes ulmi also known as oystershell scale are Scale Insects that is a pest on woody plants. The small insects attach themselves to bark and cause.

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Trees for strip-mined lands. Quarantines have been imposed in many regions to protect agricultural crops. Trials of an integrated pest management programme based on selective pesticides in English apple orchards.

Annals of the Entomological Society of Quebec, 15 2: The Coccidae of British North America.

Forest Pests: Insects, Diseases & Other Damage Agents

The crawlers are tiny and disperse on the host, each one looking for a suitable protected site with thin bark in which to settle, remaining in that place permanently after sinking the stylet into the host plant’s vascular tissues. References Top of page Abramovic T, Aspen foliage is sensitive to liquid formulations of many insecticides.


Insects that feed on trees and shrubs. At the bottom of the article, feel free to list any sources that support your changes, so that we can fully understand their context. Zashchita Rastenii MoskvaNo.

Oystershell Scale

They may be univoltinebivoltine and even polyvoltineand may, or may not, infest the same host plant, differ in fecundity and cold-hardiness, as well as possess, or lack, an embryonic diapause.

Contribution to the timing for the control of Diaspididae scales of olive trees. Relatively few natural enemies appear associated with oystershell scale. The Scale Insects of California. Necessity of protecting decorative plants as well. Parent, ; Parent, If lepodosaphes need expert professional advice, contact your local extension office.

Bognar S, Vinis G, An illustrated practical guide.

Some scale insects of Mississippi. Oystershell Scale Lepidosaphes ulmi L.

The oystershell scale was collected from over host plants, but is most prevalent on apples. The preservation of city trees and shrubs. Go to distribution map Scale insects on fruit trees. Adiciones a los coccidos de Espana. Acta Phytopathologica et Entomologica Hungarica, 23 Extension Bulletin, Michigan State, There are no eyes or legs and the short antennae have only a single segment.


oystershell scale (Lepidosaphes ulmi)

A number of parasitoids and predators have been imported into regions where this species has attained pest status. This is because lepidosaphds eggs are well protected by the covering produced by the mother scale. Homoptera fauna of Tamil Nadu, India.

Some crawlers may develop into males. Her scale darkens in colour and stays in place, protecting the eggs over the winter.

Branches may become encrusted and exhibit die-back. Insect pests of economic significance affecting major crops of the countries lepidosaphee Asia and the Pacific region. Entomologia Experimentalis et Applicata, 49 Acta Agronomica Academiae Scientiarum Hungaricae, 28 Integrated pest management in Swiss apple orchards: Thank You for Your Contribution!

Insecta Hemiptera – Coccus. Coccids as pests of park plants.