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.

Author: Danris Vudolabar
Country: Honduras
Language: English (Spanish)
Genre: Travel
Published (Last): 9 July 2004
Pages: 262
PDF File Size: 8.10 Mb
ePub File Size: 9.13 Mb
ISBN: 499-1-45756-157-6
Downloads: 83727
Price: Free* [*Free Regsitration Required]
Uploader: Gogul

On some hosts the scale is covered with a fine powder of wax. Biologicheskii Zhurnal Armenii, 32 3: Generate a print friendly version containing only the sections you need. Pests of Rosa damascena Mill. In addition to reducing plant vigour de Groot,heavy infestations reduce plant growth and lower frost resistance, endangering trees and possibly leading to death in years.

Retrieved from ” http: Bugguide is hosted by: Control of the mussel scale. Plant Disease Reporter, 61 7: Kozarzevskaja E, Vlainic A, Coccoidea on olive trees in Croatia with special regard on Black araucaria scale – Lindingaspis rossi Maskell Twig and branch mortality of American Beech infested with oystershell scale. With notes on certain species from Texas.

The Armored Scales Homoptera: The “armor” of the Oystershell scale may be lifted to expose a tiny legless adult female or a batch of eggs. Diaspididae on olive trees in Greece.


The scale insect fauna Homoptera: Many scales and overwintering eggs die if areas of bark beneath them are killed. On kepidosaphes trees, old scale coverings and eggs can be destroyed by scrubbing the bark with a soft plastic pad.

Oystershell scale | insect |

Over one hundred and fifty host plant species are known for the oystershell scale including members of the families AceraceaeBetulaceaeCaprifoliaceaeCelastraceaeElaeagnaceaeGrossulariaceaeHydrangeaceaeJuglandaceaeOleaceaePyrolaceaeRosaceaeSalicaceae and Tiliaceae.

Taken together, these data suggest that several species may be masquerading under the label Lepidosaphes ulmi. Updated check list of scale insects Hemiptera: Entomologia Experimentalis et Applicata, 49 Seasonal development of insects and mites on apple Privacy policy About Bugwoodwiki Disclaimers. Phenology, embryonic diapause and importance of natural enemies of Lepidosaphes ulmi L.

Oystershell scale

The mating of Physcus testaceus Masi Hym. Extension Bulletin, Michigan State, Also, when crushed, dead scales are dry and flake easily off the bark; scales lepidosahes eggs typically will produce some moisture when crushed. Arhiv za Poljoprivredne Nauke, 41 Chemical compounds for winter control of eggs of the apple mussel scale Lepidosaphes ulmi L.

Hemiptera attacking Euramerican poplars. The Scale Insects of California. It has also been a problem on olives in Greece where it, along with Parlatoria oleae, causes serious injury to the tree and fruit Argyriou and Kourmadas, If you need expert professional advice, contact your local extension office.

Control of diaspidid scales on olive trees by releasing coccinellid predators. Insects That Feed on Trees and Shrubs. The fifth group, of about pores, is situated just below the anus.


Scale insects of Missouri. Go to distribution map Dedicated naturalists volunteer their time and resources here to provide this service. Upcoming Events Discussioninsects and people from the BugGuide Gathering in VirginiaJuly Photos of insects and people from the gathering in WisconsinJuly Photos of insects and people from the gathering in VirginiaJune Animal, kingdom Animaliaany of a group of multicellular eukaryotic organisms i.

Knowledge Bank home Change location. Advances in the study of Aphytis Hymenoptera: Control is by dormant, or horticultural, oil spray and natural enemies such as birds, mites, and parasitic wasps.

Nakahara, ; Mendel et al. Foliage may appear thin and chlorotic and there may be areas of the crown that lack leaves or where there are scattered clumps of leaves. Observations on the enemies of the oyster shell scale Lepidopsaphes ulmi, on apple in the Netherlands.

Please try again later. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report. Journal of Entomological Research, New Delhi, 20 3: Insects that feed on trees and shrubs. Unfortunately, our editorial approach may not be able to accommodate all contributions.