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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Ecology of apple orchard fauna and development of integrated pest control in Nova Scotia. Adult females are present in July. Phenology, embryonic diapause and importance of natural enemies of Lepidosaphes ulmi L.

Distribution des formes hivernantes des ravageurs du pommier dans la region de Gembloux novembre et decembre Bugguide is hosted by: Branches that are heavily infested should be pruned out. Carbaryl Sevinchlorpyrifos Dursbandiazinon, Orthene, Tempo, Talstar, and Mavrik are currently available crawler sprays. Criticism of products or equipment not listed is neither implied nor intended. Comparative morphological characteristics of the Central Asian Lepidosaphes mesasiatica Borchs.

Many scales and overwintering eggs die if areas of bark beneath them are killed. Infested fruit often show small spots or areas of discoloration, especially in areas where feeding activity occurs. lepidosaphds


Like most websites we use cookies. Biosystematics of the oystershell scale, Lepidosaphes ulmi L.

Karsemeijer, ; Dijke and Frankenhuyzen, ; Helsen et al. Survey of scale insect Homoptera: Spray programmes are applied against the migratory nymphs or crawlers upon emerging from under the parent’s cover.

Lepidosaphes ulmi – Wikibooks, open books for an open world

Many hosts are commonly attacked by oystershell scale, making this one of the most destructive insect pests of trees and shrubs. Biological control programmes against insects and weeds in Canada This page was last edited on 21 Julyat The Editors of Encyclopaedia Britannica. Parent, ; Parent, Proceedings of the Entomological Society of Washington, 98 1: If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content. Thank You for Your Contribution! California Department of Food and Agriculture. Due to constantly changing labels, laws and regulations, the Extension Services can assume no liability for the suggested use of chemicals contained herein.

Oystershell scale

These undergo four moults and the adult males have eyes, three pairs of legs, one pair of wings, a head and a body divided into a thorax and abdomen. Suresh and Mohanasundaram found that it infested species of Citrus in India.


New collection records for scale insects of Tennessee. If you need lepidosaphs professional advice, contact your local extension office.

Chemical control of the oystershell scale, Lepidosaphes ulmi L. Extension Bulletin, Michigan State, Beech, birch, maple, ash, poplar, willow, elm, lilac, apple, pear, cherries and many other plants. Common insects of the flower garden.

Dicker, ; Easterbrook et al.

Ecological aspects of problems of prevention and control. Thank you for your feedback. Pesticides must be applied legally complying with all label directions and precautions on the pesticide container and any supplemental labeling and rules of state and federal pesticide regulatory agencies. Israel Journal of Entomology Descriptions of first instars of nominal type-species of eight diaspidid tribes.

Tsachev reported that this species is a widely distributed pest in Bulgaria lepidoswphes it prefers apple and willow. Ulmmi of horticultural oils may overcome this problem but control is still difficult.