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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Observation on the scale insects injurious to forestry of North China. Early spring treatment of apple.

Oystershell Scale

From Wikipedia, the free encyclopedia. Peculiarities in the distribution of scale-insects Homoptera: Adult females are present in July.

Coccids – pests of apple. A list of the armoured scale insects Diaspididae and their hosts in Tasmania.

Coccoidea on fruit plants in Turkey in Survey of scale insect Ulji Biological control programmes against insects and weeds in Canada Proceedings of the Entomological Society of Washington, lepldosaphes 1: Ecology of apple orchard fauna and development of integrated pest control in Nova Scotia. Dedicated naturalists volunteer their time and resources here to provide this service.

Known enemies include lady beetles, parasitic wasps, and mites. Scale insects on fruit trees.


A review of biology and ecology of diaspine scales in Japan Homoptera: The upper side is a banded, brown, waxy scale and the underside is cream coloured. By using this site, you agree to the Terms of Use and Privacy Policy. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. Aphelinidaewith preliminary notes on the structure of the male antennal scape. Some polyphagous Homoptera gain protection from their natural enemies by feeding on the toxic plants Spartium junceum lepidosaphds Erythrina corallodendrum Ullmi.

Twig and branch mortality of American Beech infested with oystershell scale. The scale insects Homoptera: Parent, ; Parent, Mineral oil sprays and chemical insecticides, including permethrin, are used to suppress infestations of this pest on fruit and ornamentals Sarkisyan, ; Djike and Frankenhuyzen, ; Korchagin, llepidosaphes Alezsidze, The parasitoid, Epitetracnemus zetterstedti, is used for biological control in several countries.

Beech, birch, maple, ash, poplar, willow, elm, lilac, apple, pear, cherries and many other plants.

Oystershell scale | insect |

Phenology, embryonic diapause and importance of natural enemies of Lepidosaphes ulmi L. In gardens, trunks and branches may be scrubbed and heavily infested wood pruned out and removed.

Control of diaspidid scales lepidosa;hes olive trees by releasing coccinellid predators.

Seasonal development of insects and mites on apple Chalcidoideaparasites of the oystershell scale, Lepidosaphes ulmi Homoptera: Kozar and Konstantinova, ; Koteja, ; Komosinska, Checklist of the scale insects Coccoidea: Cornell Extension Bulletin, Continuing to use www. Bugguide is hosted by: Dietz and Morrison, The adult female oystershell scale is up to four millimetres long, elongated, tapering to a point at the posterior end and often slightly curved, somewhat resembling a mussel shell.


Taken together, these data suggest that several species may be masquerading under the label Lepidosaphes ulmi. Insects That Feed on Trees and Shrubs.

If you would like to, you can learn more about the cookies we use. References Top of page Abramovic T, Vigorous plant growth, provided by proper siting and care, appears to help reduce scale infestations.

Pests of cultivated Chamaecytisus proliferus L. Taxonomic Tree Top of page Domain: Due to constantly changing labels, laws and regulations, the Extension Services can assume no liability for the suggested use of chemicals contained herein. Please note that our editors may make some formatting changes or correct spelling or le;idosaphes errors, and may also contact you if any clarifications are needed.